development.md

# Development

2209 APIs in this category.

[Back to Main Index](../README.md)

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← [Data Validation](./data-validation.md) | [Dictionaries](./dictionaries.md) →

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| API | Description | Auth | HTTPS | CORS | Pricing |
|---|---|---|---|---|---|
| [1LINK.IO](https://api.1link.io/swagger) | The 1LINK.IO API allows you to create, edit and get link, simplify the access to your app providing... | No | Yes |  | Unknown |
| [1Password Events](https://1password.com) | 1Password Events API Specification. | `Bearer` | Yes |  | Unknown |
| [1uCoz](https://api.ucoz.net/) | uCoz is a website builder and content management system that provides HTTP, JSON, and REST methods... | No | Yes |  | Unknown |
| [24 Pull Requests](https://24pullrequests.com/api) | Project to promote open source collaboration during December | No | Yes | Yes | Free |
| [2GIS](https://dev.2gis.ru/en/api/map) | 2GIS is a Russian search engine for companies. | No | Yes |  | Unknown |
| [3DTransform](https://www.3dtransform.com/?q=node/13) | 3DTransform is a free service that converts 3D model files to .STL format for 3D printing. | No | Yes |  | Unknown |
| [3Scale Account Management](https://docs.redhat.com/en/documentation/red_hat_3scale_api_management/2.10) | 3Scale enables API owners to integrate API management services into their existing systems. | No | Yes |  | Unknown |
| [3taps](http://docs.3taps.com) | 3taps searches realtime for postings of items offered for exchange, such as a job offer or a watch... | No | Yes |  | Unknown |
| [42 Matters](https://42matters.com/api) | The 42matters App Market API allows developers to search and access meta-data related to mobile... | No | Yes |  | Unknown |
| [42matters](https://42matters.com/api) | 42matters provides a searchable Android app database that contains over 500,000 apps. | No | Yes |  | Unknown |
| [9kw.eu](https://www.9kw.eu/api.html) | 9kw.eu is a captcha solving service that can solve almost any captcha in 30 seconds or less. | No | Yes |  | Unknown |
| [Abacus](https://abacus.jasoncameron.dev/) | Free and simple counting service. You can use it to track page hits and specific events | No | Yes | Yes | Free |
| [Abios Esports](https://docs.abiosgaming.com) | Abios is a Stockholm-based esports company that provides engaging data and statistics services. | No | Yes |  | Unknown |
| [Ably.io Platform](https://www.ably.io/documentation/rest-api) | The [REST API specification](https://www.ably.io/documentation/rest-api) for Ably. | `Basic` | Yes |  | Unknown |
| [Abstract Screenshot](https://www.abstractapi.com/website-screenshot-api) | Take programmatic screenshots of web pages from any website | `apiKey` | Yes | Yes | Free |
| [Acapela](http://www.acapela-vaas.com) | Acapela is a Voice as a Service provider. The service offers text to speech solutions to give voice... | No | Yes |  | Unknown |
| [ActiveCollab](https://www.activecollab.com/docs/manuals/developers) | ActiveCollab is a system that lets you and your team collaborate more efficiently by sharing files,... | No | Yes |  | Unknown |
| [Acuity Appointment Scheduling](https://developers.acuityscheduling.com) | Acuity Appointment Scheduling is an online appointment booking service that can be accessed via... | No | Yes |  | Unknown |
| [Adafruit IO](https://io.adafruit.com/api/docs) | The Adafruit IO REST API is over HTTPS where possible. | No | Yes |  | Unknown |
| [Adafruit IO MQTT](https://learn.adafruit.com/adafruit-io/overview) | Adafruit IO's MQTT API exposes feed data using special topics. | No | Yes |  | Unknown |
| [Adafruit IO REST](https://adafruit.com) | ### The Internet of Things for Everyone  The Adafruit IO HTTP API provides access to your Adafruit... | No | Yes |  | Unknown |
| [AddressFinder Autocomplete](https://addressfinder.nz/docs/address_autocomplete_api) | The AddressFinder Autocomplete API returns data available in the database to return matching... | No | Yes |  | Unknown |
| [AddressFinder Points of Interest](https://addressfinder.nz/docs/points_of_interest_autocomplete_api) | The AddressFinder Points of Interest API returns a list of matching points of interest with... | No | Yes |  | Unknown |
| [AddressFinder Reverse Geocode](https://addressfinder.nz/docs/address_reverse_geocode_api) | The AddressFinder Reverse Geocode API returns data of a near address when developers make a call to... | No | Yes |  | Unknown |
| [AddressFinder Verification](https://addressfinder.nz/docs/address_verification_api) | The AddressFinder Verification API returns data of a verified address according to a precise... | No | Yes |  | Unknown |
| [AddThis Client](http://support.addthis.com/customer/portal/articles/381263-addthis-client-api#.Ub6hONiwWDp) | The AddThis Client API allows users to add and configure buttons for sharing content on their... | No | Yes |  | Unknown |
| [AddThis Sharing Button](http://support.addthis.com/customer/portal/articles/1337989-overview) | The AddThis Sharing Button API allows users to insert AddThis sharing buttons into their web pages... | No | Yes |  | Unknown |
| [AddThis Smart Layers](http://support.addthis.com/customer/portal/articles/1200473-smart-layers-api) | The AddThis Smart Layers API allows developers to configure and customize the Smart Layers... | No | Yes |  | Unknown |
| [Adeptol CloudConnect](https://www.prizmviewer.com/documentation.html) | Adeptol provides an on-demand viewer that supports more than 300 document types which includes... | No | Yes |  | Unknown |
| [ADL 3D Repository (3DR)](http://3dr.adlnet.gov/blog) | The Advanced Distributed Learning (ADL) 3D Repository (3DR) is a website for uploading, finding,... | No | Yes |  | Unknown |
| [Adobe Fonts](https://fonts.adobe.com/docs/api) | The Adobe Fonts API is a Typekit Platform service that enables you with the ability to build a... | No | Yes |  | Unknown |
| [Adobe Typekit](https://fonts.adobe.com/docs/api) | The Adobe Typekit API is Typekit's original API that is still supported, but Adobe encourages users... | No | Yes |  | Unknown |
| [Adzerk Decision](https://dev.kevel.com/docs/native-ads-api-advanced) | The Adzerk Decision API in REST architecture returns data to make ad requests in JSON format. | No | Yes |  | Unknown |
| [Aerospike](https://aerospike.com/docs/) | The Aerospike API integrates NoSQL databases into web services. | No | Yes |  | Unknown |
| [Agco-ats AGCO](https://agco-ats.com) | AGCO API API | No | Yes |  | Unknown |
| [Agify.io](https://agify.io) | Estimates the age from a first name | No | Yes | Yes | Free |
| [Agile Bench](http://agilebench.com/apidoc) | Agile Bench calls itself "the easiest way to manage agile projects. | No | Yes |  | Unknown |
| [Ai Applied Language Detection](https://ai-applied.nl/language-detection-api) | Ai Applied provides technologies and services that help users obtain valuable insights from their... | No | Yes |  | Unknown |
| [Aiaioo Labs VakText](https://www.aiaioo.com/api.html) | Aiaioo labs is provides research services with applied A.I. | No | Yes |  | Unknown |
| [Aimtell](https://documentation.aimtell.com) | Aimtell is a web-based application that works in most web browsers, which means you don't need to... | No | Yes |  | Unknown |
| [Aimtell Push](https://documentation.aimtell.com) | The Aimtell Push API provides notifications that include parameters for; idSite, title, body and... | No | Yes |  | Unknown |
| [Aion Network RPC](https://github.com/aionnetwork/aion/wiki/JSON-RPC-API-Docs) | The Aion Network JSON RPC API provides access to an RPC server embedded in the Aion Kernel. | No | Yes |  | Unknown |
| [Air-Port-Codes](https://www.air-port-codes.com/airport-codes-api/overview/) | The Air-Port-Codes API is an information retrieval solution for broad categories of datasets in the... | No | Yes |  | Unknown |
| [Airbrake](https://help.airbrake.io/kb/api-2/api-overview) | Airbrake is an application that gathers errors caused by other applications. | No | Yes |  | Unknown |
| [Airbrake Data](https://help.airbrake.io/kb/api-2/api-overview) | Airbreak is an online error reporting service that aggregates errors generated by external... | No | Yes |  | Unknown |
| [Airbreak Notifier](https://help.airbrake.io/kb/api-2/notifier-api-version-23) | Airbreak is an online error reporting service that aggregates errors generated by external... | No | Yes |  | Unknown |
| [Airgloss](https://www.airgloss.com) | The Airgloss ComfortKit API monitors air quality heating, ventilation, and air conditioning. | No | Yes |  | Unknown |
| [Akka](https://akka.io/docs) | The AKKA API aims to enhance application development. | No | Yes |  | Unknown |
| [Akvo](https://github.com/akvo) | Akvo creates open source software and builds partner networks to change the way development aid is... | No | Yes |  | Unknown |
| [Alau.me](https://www.alau.me/home/description) | Alau.me is an iOS App referral-tracking platform designed by The Daily Tracker. | No | Yes |  | Unknown |
| [Alertra](https://www.alertra.com/features/api) | Alertra is a website monitoring service that notifies users via phone call or SMS when an outage or... | No | Yes |  | Unknown |
| [Alexa Device Address](https://developer.amazon.com/docs/custom-skills/device-address-api.html) | When a customer enables your Alexa skill, the Alexa Device Address API enables you to obtain the... | No | Yes |  | Unknown |
| [Alexa Skill Management](https://developer.amazon.com/alexa) | The Alexa Skill Management API provides RESTful HTTP interfaces for programmatically performing... | No | Yes |  | Unknown |
| [Alexa Web Information Service](https://aws.amazon.com/awis) | The Alexa Web Information Service makes Alexa's repository of information about the traffic and... | No | Yes |  | Unknown |
| [Algolia](https://www.algolia.com/doc/rest_api) | Algolia is a search API designed to support developers in delivering great search experiences in... | No | Yes |  | Unknown |
| [Algolia](https://www.algolia.com/doc) | Fast, typo-tolerant search and discovery for apps and websites. | `apiKey` | Yes |  | Unknown |
| [Alkemics](https://docs.alkemics.com/reference) | The Alkemics API enables retailers to streamline sharing product data across all platforms for... | No | Yes |  | Unknown |
| [Allthingstalk](https://docs.allthingstalk.com/developers/api/rest) | The Allthingstalk API provides internet of service features. | No | Yes |  | Unknown |
| [Amazon Alexa Baby Activity Skill](https://developer.amazon.com/alexa-skills-kit) | Alexa Baby Activity Skills is a set of Health API interfaces that allows you to build baby activity... | No | Yes |  | Unknown |
| [Amazon Alexa Music Skill](https://developer.amazon.com/alexa-skills-kit) | The Alexa Music Skill API enables devices to understand a user's voice commands to integrate a... | No | Yes |  | Unknown |
| [Amazon Alexa Proactive Events](https://developer.amazon.com/docs/smapi/proactive-events-api.html) | The Amazon Alexa Proactive Events API returns JSON formats to send events to Alexa that will... | No | Yes |  | Unknown |
| [Amazon Alexa Skill Video](https://developer.amazon.com/docs/video/understand-the-video-skill-api.html) | The Amazon Alexa Skill Video API returns JSON data with far-field control of video devices and... | No | Yes |  | Unknown |
| [Amazon Alexa Skills Flash Briefing](https://developer.amazon.com/docs/ask-overviews/build-skills-with-the-alexa-skills-kit.html) | The Amazon Alexa Skills Flash Briefing API defines the format of content and enables you to create... | No | Yes |  | Unknown |
| [Amazon Alexa Smart Home Skills](https://developer.amazon.com/public/solutions/alexa/alexa-skills-kit/overviews/understanding-the-smart-home-skill-api) | The smart home skills is an automation solution that supports the coding and configuration of... | No | Yes |  | Unknown |
| [Amazon Alexa Voice Service](https://developer.amazon.com/en-US/docs/alexa/documentation-home.html) | The Alexa Voice Service (AVS) is a component of Amazon’s Alexa Skills Kit. | No | Yes |  | Unknown |
| [Amazon App Submission](https://s3-us-west-1.amazonaws.com/devportal-reference-docs/appsubapi/swagger-en/index.html) | The App Submission API provides a way to create new versions of your existing Android apps on the... | No | Yes |  | Unknown |
| [Amazon CloudWatch](https://docs.aws.amazon.com/cloudwatch/) | Amazon CloudWatch is a web service that provides visibility into your cloud assets. | No | Yes |  | Unknown |
| [Amazon DynamoDB](https://aws.amazon.com/dynamodb) | Amazon DynamoDB is a scalable NoSQL database homegrown by the Amazon team. | No | Yes |  | Unknown |
| [Amazon Gateway](https://aws.amazon.com/documentation/apigateway) | The Amazon Gateway API aims to simplify the API development process by publishing, maintaining, and... | No | Yes |  | Unknown |
| [Amazon RDS Relational Database Service](https://aws.amazon.com/rds) | Amazon Relational Database Service, aka Amazon RDS, is a web service that lets you set up, operate,... | No | Yes |  | Unknown |
| [Amazon Redshift](https://aws.amazon.com/redshift) | Amazon Redshift is a cloud-based fully managed, petabyte-scale data warehouse service. | No | Yes |  | Unknown |
| [Amazon SimpleDB](https://aws.amazon.com/simpledb) | From their site: Amazon SimpleDB is a web service for running queries on structured data in real... | No | Yes |  | Unknown |
| [Amazon Web Services AppStream](https://docs.aws.amazon.com/appstream2/latest/APIReference/Welcome.html) | The Amazon Web Services AppStream REST API allows developers to access and manage their... | No | Yes |  | Unknown |
| [Amazon Web Services Lambda](https://docs.aws.amazon.com/lambda/latest/api/welcome.html) | The Amazon Web Services Lambda REST API allows developers to access and integrate the functionality... | No | Yes |  | Unknown |
| [Amazon Web Services X-Ray](https://aws.amazon.com/documentation/xray) | The Amazon Web Services X-Ray REST API allows developers to access and integrate the functionality... | No | Yes |  | Unknown |
| [American Bible Society Journeys Registration](http://journeys.americanbible.org) | For nearly 200 years the American Bible Society has worked alongside ministry partners, Christian... | No | Yes |  | Unknown |
| [Amio.io](https://docs.amio.io) | Amio offers a multi-channel messaging platform that can be integrated with helpdesk systems. | No | Yes |  | Unknown |
| [Amio.io Webhooks](https://docs.amio.io/reference) | The Amio.io Webhooks API allows developers to integrate real-time support capabilities with... | No | Yes |  | Unknown |
| [Amplitude](https://amplitude.com/docs) | Amplitude is a mobile analytics platform. Amplitude provides data and statistics and information... | No | Yes |  | Unknown |
| [Anchore Engine API Server](https://anchore.io) | This is the Anchore Engine API. Provides the primary external API for users of the service. | No | No |  | Unknown |
| [Android Neural Networks](https://developer.android.com/ndk/guides/neuralnetworks) | The Android Neural Networks service is an Android C API that allows you to run computational... | No | Yes |  | Unknown |
| [AngularJS](https://docs.angularjs.org/api) | AngularJS is a platform that allows developers to extend static HTML vocabulary to interactive... | No | Yes |  | Unknown |
| [Angus.ai](https://www.angus.ai/developers) | The Angus.ai API makes it easy for developers to give senses to machines. Angus. | No | Yes |  | Unknown |
| [Animetrics Face Recognition](http://api.animetrics.com) | Animetrics develops 3D face recognition applications and face identity management solutions. | No | Yes |  | Unknown |
| [Annotate.IO](http://annotate.io) | Annotate.IO helps you clean text data - you tell it "what you have" and "what you want" and it... | No | Yes |  | Unknown |
| [Antigate](https://antigate.com) | Antigate is an real-time CAPTCHA to text decoding service that utilizes human workers from around... | No | Yes |  | Unknown |
| [ANU Quantum Random Number Generator](https://qrng.anu.edu.au/API/api-demo.php) | The Australian National University (ANU) provides free, truly random numbers to the public. | No | Yes |  | Unknown |
| [Apache Cordova](https://cordova.apache.org/docs/en/3.6.0/cordova_plugins_pluginapis.md.html#Plugin%20APIs) | Apache Cordova provides device APIs that allow a mobile app developer to access native device... | No | Yes |  | Unknown |
| [Apache Mesos](https://mesos.apache.org/documentation/latest/) | The Apache Mesos API is designed to accommodate wide varieties of framework languages that... | No | Yes |  | Unknown |
| [Apache Mesos Chronos](https://mesos.github.io/chronos/docs/api.html) | Apache Mesos Chronos, a job scheduler for computing tasks, is capable of processing dependencies... | No | Yes |  | Unknown |
| [Apache Mesos Executor HTTP](https://mesos.apache.org/documentation/latest/executor-http-api) | Mesos, a project of the Apache Software Foundation, is a product of similar principles that are... | No | Yes |  | Unknown |
| [Apache Mesos Operator HTTP](https://mesos.apache.org/documentation/latest/operator-http-api/) | Mesos, a project of the Apache Software Foundation, shares the fundamental principles of Linux... | No | Yes |  | Unknown |
| [Apertium](https://wiki.apertium.org/wiki/Apertium_web_service) | Apertium is a free/open-source machine translation platform. | No | Yes |  | Unknown |
| [API League](https://apileague.com) | World-class APIs in a single hub | `apiKey` | Yes | Yes | Free |
| [API Setu](https://www.apisetu.gov.in/) | An Indian Government platform that provides a lot of APIS for KYC, business, education & employment | No | Yes | Yes | Unknown |
| [Api2Pdf - PDF Generation, Powered by AWS Lambda](https://api2pdf.com) | # Introduction [Api2Pdf](https://www.api2pdf. | `apiKey` | Yes |  | Unknown |
| [Apiary Default](http://docs.defaultapi.apiary.io/#) | The Apiary Default API allows users to save short texts. | No | Yes |  | Unknown |
| [Apiary Gist Fox](http://docs.gistfoxapi.apiary.io) | The Apiary Gist Fox API supports the instant sharing of notes, snippets, or codes. | No | Yes |  | Unknown |
| [APIBond](https://apibond.com/docs) | APIBond is an API management platform for orchestrating, analyzing and updating your app. | No | Yes |  | Unknown |
| [ApicAgent](https://www.apicagent.com) | Extract device details from user-agent string | No | Yes | Yes | Free |
| [Apideck Ecosystem](https://developers.apideck.com) | Ecosystem API | No | Yes |  | Unknown |
| [Apifaketory](http://docs.apifaketory.apiary.io) | The Apifaketory API is a gateway to a database of broad categories of content. | No | Yes |  | Unknown |
| [ApiFlash](https://apiflash.com/) | Chrome based screenshot API for developers | `apiKey` | Yes |  | Free |
| [Apigee Edge](https://docs.apigee.com) | Apigee Edge API is a RESTful developer resource for accessing a range of API management services... | No | Yes |  | Unknown |
| [apilayer userstack](https://userstack.com/) | Secure User-Agent String Lookup JSON API | `OAuth` | Yes |  | Unknown |
| [APIs.guru](https://apis.guru/api-doc/) | Wikipedia for Web APIs, OpenAPI/Swagger specs for public APIs | No | Yes |  | Free |
| [apis.is](https://docs.apis.is) | Apis.is is an Icelandic web service that scrapes open data from public websites, providing... | No | Yes |  | Unknown |
| [APIseeds BuildWith](https://apiseeds.com/documentation/buildwith) | BuildWith API provides access to the technology information about a website. | No | Yes |  | Unknown |
| [Apizee ApiRTC](https://apirtc.com/api-docs) | The Apizee ApiRTC API is a platform that integrates WebRTC technology, and adds real-time text,... | No | Yes |  | Unknown |
| [Apizee Server](https://apirtc.com/api-docs) | Apizee is a platform that integrates WebRTC technology, and adds real-time text, audio, and video... | No | Yes |  | Unknown |
| [App Center Client](https://appcenter.ms) | Microsoft Visual Studio App Center API | `apiKey` | Yes |  | Unknown |
| [App.io](http://docs.app.io) | App.io is a marketing tool service that allows users to run iOS applications in browsers. App. | No | Yes |  | Unknown |
| [Appaloosa](https://appaloosa-store.com/api) | The Appaloosa API allows developers to access information on applications in their online app store. | No | Yes |  | Unknown |
| [Appbase](https://github.com/appbaseio/appbase-js) | Appbase is a realtime graph data store for rapid app development. | No | Yes |  | Unknown |
| [AppCorner.it](https://github.com/appcornerit/AppCorner-Social) | AppCorner is a discount listing service that catalogues deals and price drops on the App Store. | No | Yes |  | Unknown |
| [Appdome Upload](https://www.appdome.com/no-code-mobile-integration-knowledge-base/automate-uploading-apps-to-appdome-using-the-api) | The Appdome Upload REST API allows developers to automatically upload multiple apps at once to... | No | Yes |  | Unknown |
| [Appdome-DEV Build to Publish](https://www.appdome.com/no-code-mobile-integration-knowledge-base/appdome-dev-build-to-publish-api) | The Appdome-DEV Build to Publish API allows developers to automate the build-to-publish life cycle... | No | Yes |  | Unknown |
| [AppDynamics](https://docs.appdynamics.com/display/PRO42/AppDynamics+APIs) | The AppDynamics REST API allows developers to access and integrate the functionality of AppDynamics... | No | Yes |  | Unknown |
| [AppearIQ](https://www.appeariq.com/content/integration-api) | AppearIQ offers enterprise-level mobile development solutions for cross platform applications. | No | Yes |  | Unknown |
| [Apperian Applications](https://www.apperian.com/enterprise-application-management/extend-enterprise-mobility-management) | Apperian is a mobile app management platform with a set of open APIs that handle the key elements... | No | Yes |  | Unknown |
| [Apperian Crowdsourcing Ideas](https://apidocs.apperian.com/v1/ideas.html) | Apperian is a mobile app management platform with a set of open APIs that handle the key elements... | No | Yes |  | Unknown |
| [Apperian Downloads and Installs](https://apidocs.apperian.com/v1/downloads.html) | Apperian is a mobile app management platform with a set of open APIs that handle the key elements... | No | Yes |  | Unknown |
| [Apperian Groups](https://apidocs.apperian.com/v1/groups.html) | Apperian is a mobile app management platform with a set of open APIs that handle the key elements... | No | Yes |  | Unknown |
| [Appery.io](https://docs.appery.io/) | Appery.io is a mobile application building and management platform. Users can use Appery. | No | Yes |  | Unknown |
| [Appetize.io](https://appetize.io/api) | Appetize.io provides dedicated in-browser iOS simulators. | No | Yes |  | Unknown |
| [appFigures](https://docs.appfigures.com) | appFigures is a reporting platform for iPhone developers that automatically downloads and... | No | Yes |  | Unknown |
| [AppHarbor](https://support.appharbor.com/kb/api/api-overview) | AppHarbor is a cloud based Platform as a Service solution for .NET. | No | Yes |  | Unknown |
| [Applanga](https://www.applanga.com/docs) | The Applanga API automates the process of translating applications into different languages. | No | Yes |  | Unknown |
| [Apple App Store Connect](https://developer.apple.com/documentation/appstoreconnectapi) | This Apple App Store Connect API is an Apple Web Service to automate tasks on the Apple Developer... | No | Yes |  | Unknown |
| [Apple App Store Connect](https://apple.com) | App Store Connect API API | `Bearer` | Yes |  | Unknown |
| [Applivery](https://www.applivery.com/docs/rest-api/introduction) | Applivery is a mobile application distribution system with app management and governance features. | No | Yes |  | Unknown |
| [AppMethod](https://www.appmethod.com) | AppMethod is an application creation and building service. | No | Yes |  | Unknown |
| [AppMonsta](https://appmonsta.com/dashboard/api-documentation) | The AppMonsta API allows developers to get app data for all apps offered by Google Play and the iOS... | No | Yes |  | Unknown |
| [appScatter](https://appscatter.com/product#open-api) | The appScatter open API enables developers and vendor communities globally, with the ability to... | No | Yes |  | Unknown |
| [AppThwack](https://appthwack.com/docs/api) | AppThwack API enables developers to integrate a testing feature to their application. | No | Yes |  | Unknown |
| [AppURL](https://appurl.org/docs/api) | AppURL is a service that connects applications to the web using HTTP URLs. | No | Yes |  | Unknown |
| [Appwrite](https://appwrite.io/docs) | This API provides access to the Appwrite application creation platform. | No | Yes |  | Unknown |
| [Appwrite Webhooks](https://appwrite.io/docs/webhooks) | Appwrite Webhooks provides real-time communications when certain events are triggered. | No | Yes |  | Unknown |
| [AppyFlow GST Number Details](https://appyflow.in/verify-gst/#docs) | The AppyFlow GST API integrates GST taxpayer search functionalities with applications. | No | Yes |  | Unknown |
| [aprs.fi](https://aprs.fi/page/api) | APRS, or Automatic Packet Reporting System, is a radio-based digital communications protocol for... | No | Yes |  | Unknown |
| [Apteligent](https://docs.apteligent.com/api/api.html) | Apteligent is a mobile intelligence platform designed to troubleshoot, prioritize, and resolve... | No | Yes |  | Unknown |
| [ApyHub APIs: Secure APIs for Every Application](https://apyhub.com/catalog) | Build and ship faster with 150+ APIs to connect to your application | `apiKey` | Yes | Yes | Free |
| [ApyHub: Curated APIs for Devs](https://apyhub.com/catalog) | A complete catalog of +150 APIs that can be used in your next application | `apiKey` | Yes | Yes | Unknown |
| [ARCore](https://developers.google.com/ar/develop) | This API requires indirect access via SDK. Please see the SDK tab below for more information. | No | Yes |  | Unknown |
| [ARIN Whois](https://www.arin.net/resources/whoisrws) | The American Registry for Internet Numbers (ARIN) is a Regional Internet Registry (RIR)... | No | Yes |  | Unknown |
| [Arrayent EcoAdaptor for Nest](https://developer.arrayent.com/developer-apis/ecoadaptor-for-nest-api) | The Arrayent EcoAdaptor for Nest API allows developers to federate and defederate with Nest cloud... | No | Yes |  | Unknown |
| [Arrayent Embedded](https://developer.arrayent.com/developer-apis/aca-api) | The Arrayent Embedded API's methods allow developers to configure the Arrayent Connect Agent (ACA),... | No | Yes |  | Unknown |
| [Arukas](https://arukas.io/en/documents-en/arukas-api-reference-en/#authentication) | With the Arukas API, developers can control, create or edit applications and manage containers. | No | Yes |  | Unknown |
| [Ask AMEE](https://www.amee.com/pages/api) | AMEE is a platform for greenhouse gas calculation, with access to emissions factors, calculation... | No | Yes |  | Unknown |
| [Ask Kodiak](https://api.askkodiak.com/doc) | Ask Kodiak is designed to organize commercial insurance providers and simplify the process required... | No | Yes |  | Unknown |
| [AT&T In-App Messaging](https://developer.att.com/in-app-messaging/docs) | The ATT In-App Messaging API allows you to send, receive, update, and delete MMS and SMS messages... | No | Yes |  | Unknown |
| [atama](https://atama.io/api.html) | Atama is a UK based company that focuses on developing app-enabled products that work with... | No | Yes |  | Unknown |
| [Atlassian The Jira Cloud platform REST](https://developer.atlassian.com/server/jira/platform/rest/) | Jira Cloud platform REST API documentation | `OAuth` | Yes |  | Unknown |
| [Atom.io](https://atom.io/docs/api/v1.0.13/Atom) | Atom.io is a hackable text editor. The Atom.io API allows users to customize contents of the editor. | No | Yes |  | Unknown |
| [ATutor AChecker](https://achecker.ca/documentation/web_service_api.php) | ATutor is a Web-based Learning Content Management System. | No | Yes |  | Unknown |
| [Auckland Museum](http://www.aucklandmuseum.com) | This is technical documentation for the Auckland Museum API | No | No |  | Unknown |
| [Augeas](https://augeas.net/docs/references/c_api/files/augeas-h.html) | The Augeas API configures files in C language. | No | Yes |  | Unknown |
| [Auphonic](https://auphonic.com/api-docs/index.html) | Auphonic is a service that develops algorithms for music information retrieval and audio signal... | No | Yes |  | Unknown |
| [AutoChangelog](https://autochangelog.com) | Automatically creates changelog entries from deployments by analyzing pull requests, commits, and... | `apiKey` | Yes | Yes | Free |
| [Autodesk Forge BIM 360](https://developer.autodesk.com/en/docs/reality-capture/v1/overview) | This Autodesk Forge API allows developers to create applications that integrate with the Autodesk... | No | Yes |  | Unknown |
| [Autodesk Forge Data Management](https://developer.autodesk.com/en/docs/data/v2/overview) | The Autodesk Forge Data Management API unifies data across A360, Fusion 360, and the Object Storage... | No | Yes |  | Unknown |
| [Autodesk Forge Model Derivative](https://developer.autodesk.com/en/docs/model-derivative/v2/overview) | The Autodesk Forge Model Derivative API allows users to share designs in different formats, and to... | No | Yes |  | Unknown |
| [Autodesk Forge Reality Capture](https://developer.autodesk.com/en/docs/reality-capture/v1/overview) | The Autodesk Forge Reality Capture API provides photogrammetry capability that allows you to... | No | Yes |  | Unknown |
| [Autodesk Forge Webhooks](https://developer.autodesk.com/en/docs/webhooks/v1/overview) | The Autodesk Forge Webhooks API allows applications to receive notifications from Forge Data... | No | Yes |  | Unknown |
| [Autom](https://www.autom.dev) | Our SERP API delivers lightning-fast Google search results at unbeatable prices. | `apiKey` | Yes | Yes | Free |
| [Autopilothq autopilot](http://developers.autopilothq.com/) | Marketing Automation | `apiKey` | Yes |  | Unknown |
| [Aviation Edge](https://aviation-edge.com/developers) | Aviation Edge is a database accessed by API that provides IATA and ICAO codes as well as... | No | Yes |  | Unknown |
| [AWS Access Analyzer](https://docs.aws.amazon.com/) | Identity and Access Management Access Analyzer helps identify potential resource-access risks by... | `apiKey` | Yes |  | Unknown |
| [AWS Amazon API Gateway](https://docs.aws.amazon.com/) | Amazon API Gateway Amazon API Gateway helps developers deliver robust,... | `apiKey` | Yes |  | Unknown |
| [AWS Amazon Chime](https://docs.aws.amazon.com/) | The Amazon Chime application programming interface (API) is designed so administrators can... | `apiKey` | Yes |  | Unknown |
| [AWS Amazon CloudDirectory](https://docs.aws.amazon.com/) | Amazon Cloud Directory Amazon Cloud Directory is a component of the AWS... | `apiKey` | Yes |  | Unknown |
| [AWS Amazon CloudFront](https://docs.aws.amazon.com/) | Amazon CloudFront This is the Amazon CloudFront API Reference. | `apiKey` | Yes |  | Unknown |
| [AWS Amazon Cognito Identity Provider](https://docs.aws.amazon.com/) | Using the Amazon Cognito user pools API, you can create a user pool to manage directories and... | `apiKey` | Yes |  | Unknown |
| [AWS Amazon Cognito Sync](https://docs.aws.amazon.com/) | Amazon Cognito Sync Amazon Cognito Sync provides an AWS service and client... | `apiKey` | Yes |  | Unknown |
| [AWS Amazon Connect Contact Lens](https://docs.aws.amazon.com/) | Contact Lens for Amazon Connect enables you to analyze conversations between customer and... | `apiKey` | Yes |  | Unknown |
| [AWS Amazon Connect Participant Service](https://docs.aws.amazon.com/) | Amazon Connect is an easy-to-use omnichannel cloud contact center service that enables companies... | `apiKey` | Yes |  | Unknown |
| [AWS Amazon Connect Service](https://docs.aws.amazon.com/) | Amazon Connect is a cloud-based contact center solution that you use to set up and manage a... | `apiKey` | Yes |  | Unknown |
| [AWS Amazon Data Lifecycle Manager](https://docs.aws.amazon.com/) | Amazon Data Lifecycle Manager With Amazon Data Lifecycle Manager, you can... | `apiKey` | Yes |  | Unknown |
| [AWS Amazon DocumentDB with MongoDB compatibility](https://docs.aws.amazon.com/) | Amazon DocumentDB API documentation | `apiKey` | Yes |  | Unknown |
| [AWS Amazon DynamoDB](https://docs.aws.amazon.com/) | Amazon DynamoDB Amazon DynamoDB is a fully managed NoSQL database service... | `apiKey` | Yes |  | Unknown |
| [AWS Amazon DynamoDB Streams](https://docs.aws.amazon.com/) | Amazon DynamoDB Amazon DynamoDB Streams provides API actions for accessing... | `apiKey` | Yes |  | Unknown |
| [AWS Amazon EC2 Container Service](https://docs.aws.amazon.com/) | Amazon Elastic Container Service Amazon Elastic Container Service (Amazon... | `apiKey` | Yes |  | Unknown |
| [AWS Amazon Elastic Compute Cloud](https://docs.aws.amazon.com/) | Amazon Elastic Compute Cloud Amazon Elastic Compute Cloud (Amazon EC2)... | `apiKey` | Yes |  | Unknown |
| [AWS Amazon Elastic File System](https://docs.aws.amazon.com/) | Amazon Elastic File System Amazon Elastic File System (Amazon EFS) provides... | `apiKey` | Yes |  | Unknown |
| [AWS Amazon Elastic Kubernetes Service](https://docs.aws.amazon.com/) | Amazon Elastic Kubernetes Service (Amazon EKS) is a managed service that makes it easy for you... | `apiKey` | Yes |  | Unknown |
| [AWS Amazon Elastic Transcoder](https://docs.aws.amazon.com/) | AWS Elastic Transcoder Service The AWS Elastic Transcoder Service. | `apiKey` | Yes |  | Unknown |
| [AWS Amazon Elasticsearch Service](https://docs.aws.amazon.com/) | Amazon Elasticsearch Configuration Service Use the Amazon Elasticsearch... | `apiKey` | Yes |  | Unknown |
| [AWS Amazon EMR Containers](https://docs.aws.amazon.com/) | Amazon EMR on EKS provides a deployment option for Amazon EMR that allows you to run open-source... | `apiKey` | Yes |  | Unknown |
| [AWS Amazon Glacier](https://docs.aws.amazon.com/) |  Amazon S3 Glacier (Glacier) is a storage solution for "cold data. | `apiKey` | Yes |  | Unknown |
| [AWS Amazon Inspector](https://docs.aws.amazon.com/) | Amazon Inspector Amazon Inspector enables you to analyze the behavior of... | `apiKey` | Yes |  | Unknown |
| [AWS Amazon Kinesis Firehose](https://docs.aws.amazon.com/) | Amazon Kinesis Data Firehose API Reference Amazon Kinesis Data Firehose is... | `apiKey` | Yes |  | Unknown |
| [AWS Amazon Lex Model Building Service](https://docs.aws.amazon.com/) | Amazon Lex Build-Time Actions  Amazon Lex is an AWS service for building... | `apiKey` | Yes |  | Unknown |
| [AWS Amazon Lex Model Building V2](https://docs.aws.amazon.com/) |  | `apiKey` | Yes |  | Unknown |
| [AWS Amazon Lex Runtime Service](https://docs.aws.amazon.com/) | Amazon Lex provides both build and runtime endpoints. | `apiKey` | Yes |  | Unknown |
| [AWS Amazon Lookout for Metrics](https://docs.aws.amazon.com/) | This is the Amazon Lookout for Metrics API Reference. | `apiKey` | Yes |  | Unknown |
| [AWS Amazon Lookout for Vision](https://docs.aws.amazon.com/) | This is the Amazon Lookout for Vision API Reference. | `apiKey` | Yes |  | Unknown |
| [AWS Amazon Macie 2](https://docs.aws.amazon.com/) | Amazon Macie | `apiKey` | Yes |  | Unknown |
| [AWS Amazon Mobile Analytics](https://docs.aws.amazon.com/) | Amazon Mobile Analytics is a service for collecting, visualizing, and understanding app usage data... | `apiKey` | Yes |  | Unknown |
| [AWS Amazon Pinpoint](https://docs.aws.amazon.com/) | Doc Engage API - Amazon Pinpoint API | `apiKey` | Yes |  | Unknown |
| [AWS Amazon S3 on Outposts](https://docs.aws.amazon.com/) | Amazon S3 on Outposts provides access to S3 on Outposts operations. | `apiKey` | Yes |  | Unknown |
| [AWS Amazon SageMaker Feature Store Runtime](https://docs.aws.amazon.com/) | Contains all data plane API operations and data types for the Amazon SageMaker Feature Store. | `apiKey` | Yes |  | Unknown |
| [AWS Amazon Simple Storage Service](https://docs.aws.amazon.com/) |  | `apiKey` | Yes |  | Unknown |
| [AWS Amazon Simple Systems Manager (SSM)](https://docs.aws.amazon.com/) | Amazon Web Services Systems Manager is the operations hub for your Amazon Web Services... | `apiKey` | Yes |  | Unknown |
| [AWS Amazon SimpleDB](https://docs.aws.amazon.com/) | Amazon SimpleDB is a web service providing the core database functions of data indexing and... | `apiKey` | Yes |  | Unknown |
| [AWS AmazonApiGatewayV2](https://docs.aws.amazon.com/) | Amazon API Gateway V2 | `apiKey` | Yes |  | Unknown |
| [AWS Amplify](https://docs.aws.amazon.com/) | Amplify enables developers to develop and deploy cloud-powered mobile and web apps. | `apiKey` | Yes |  | Unknown |
| [AWS AmplifyBackend](https://docs.aws.amazon.com/) | AWS Amplify Admin API | `apiKey` | Yes |  | Unknown |
| [AWS App Mesh](https://docs.aws.amazon.com/) | App Mesh is a service mesh based on the Envoy proxy that makes it easy to monitor and control... | `apiKey` | Yes |  | Unknown |
| [AWS Application Migration Service](https://docs.aws.amazon.com/) | The Application Migration Service service. | `apiKey` | Yes |  | Unknown |
| [AWS AppSync](https://docs.aws.amazon.com/) | AppSync provides API actions for creating and interacting with data sources using GraphQL from your... | `apiKey` | Yes |  | Unknown |
| [AWS Audit Manager](https://docs.aws.amazon.com/) | Welcome to the Audit Manager API reference. | `apiKey` | Yes |  | Unknown |
| [AWS Backup](https://docs.aws.amazon.com/) | Backup Backup is a unified backup service designed to protect Amazon Web... | `apiKey` | Yes |  | Unknown |
| [AWS Batch](https://docs.aws.amazon.com/) | Batch Using Batch, you can run batch computing workloads on the Amazon Web... | `apiKey` | Yes |  | Unknown |
| [AWS Braket](https://docs.aws.amazon.com/) | The Amazon Braket API Reference provides information about the operations and structures... | `apiKey` | Yes |  | Unknown |
| [AWS DataSync](https://docs.aws.amazon.com/) | DataSync DataSync is a managed data transfer service that makes it simpler... | `apiKey` | Yes |  | Unknown |
| [AWS Fault Injection Simulator](https://docs.aws.amazon.com/) | Fault Injection Simulator is a managed service that enables you to perform fault injection... | `apiKey` | Yes |  | Unknown |
| [AWS FinSpace Public](https://docs.aws.amazon.com/) | The FinSpace APIs let you take actions inside the FinSpace. | `apiKey` | Yes |  | Unknown |
| [AWS FinSpace User Environment Management service](https://docs.aws.amazon.com/) | The FinSpace management service provides the APIs for managing FinSpace environments. | `apiKey` | Yes |  | Unknown |
| [AWS Glue DataBrew](https://docs.aws.amazon.com/) | Glue DataBrew is a visual, cloud-scale data-preparation service. | `apiKey` | Yes |  | Unknown |
| [AWS Greengrass](https://docs.aws.amazon.com/) | AWS IoT Greengrass seamlessly extends AWS onto physical devices so they can act locally on the data... | `apiKey` | Yes |  | Unknown |
| [AWS Ground Station](https://docs.aws.amazon.com/) | Welcome to the AWS Ground Station API Reference. | `apiKey` | Yes |  | Unknown |
| [AWS Identity and Access Management](https://docs.aws.amazon.com/) | Identity and Access Management Identity and Access Management (IAM) is a... | `apiKey` | Yes |  | Unknown |
| [AWS IoT](https://docs.aws.amazon.com/) | IoT IoT provides secure, bi-directional communication between... | `apiKey` | Yes |  | Unknown |
| [AWS IoT Core Device Advisor](https://docs.aws.amazon.com/) | Amazon Web Services IoT Core Device Advisor is a cloud-based, fully managed test capability for... | `apiKey` | Yes |  | Unknown |
| [AWS IoT Events](https://docs.aws.amazon.com/) | AWS IoT Events monitors your equipment or device fleets for failures or changes in operation, and... | `apiKey` | Yes |  | Unknown |
| [AWS IoT Events Data](https://docs.aws.amazon.com/) | IoT Events monitors your equipment or device fleets for failures or changes in operation, and... | `apiKey` | Yes |  | Unknown |
| [AWS IoT Jobs Data Plane](https://docs.aws.amazon.com/) | AWS IoT Jobs is a service that allows you to define a set of jobs — remote operations that are... | `apiKey` | Yes |  | Unknown |
| [AWS IoT Secure Tunneling](https://docs.aws.amazon.com/) | IoT Secure Tunneling IoT Secure Tunneling creates remote connections to... | `apiKey` | Yes |  | Unknown |
| [AWS IoT Wireless](https://docs.aws.amazon.com/) | AWS IoT Wireless provides bi-directional communication between internet-connected wireless... | `apiKey` | Yes |  | Unknown |
| [AWS Managed Streaming for Kafka](https://docs.aws.amazon.com/) | The operations for managing an Amazon MSK cluster. | `apiKey` | Yes |  | Unknown |
| [AWS Marketplace Catalog Service](https://docs.aws.amazon.com/) | Catalog API actions allow you to manage your entities through list, describe, and update... | `apiKey` | Yes |  | Unknown |
| [AWS Marketplace Entitlement Service](https://docs.aws.amazon.com/) | AWS Marketplace Entitlement Service This reference provides descriptions of... | `apiKey` | Yes |  | Unknown |
| [AWS Outposts](https://docs.aws.amazon.com/) | Amazon Web Services Outposts is a fully managed service that extends Amazon Web Services... | `apiKey` | Yes |  | Unknown |
| [AWS Prometheus Service](https://docs.aws.amazon.com/) | Amazon Managed Service for Prometheus | `apiKey` | Yes |  | Unknown |
| [AWS Resource Access Manager](https://docs.aws.amazon.com/) | This is the Resource Access Manager API Reference. | `apiKey` | Yes |  | Unknown |
| [AWS Resource Groups](https://docs.aws.amazon.com/) | Resource Groups lets you organize Amazon Web Services resources such as Amazon Elastic Compute... | `apiKey` | Yes |  | Unknown |
| [AWS RoboMaker](https://docs.aws.amazon.com/) | This section provides documentation for the AWS RoboMaker API operations. | `apiKey` | Yes |  | Unknown |
| [AWS Savings Plans](https://docs.aws.amazon.com/) | Savings Plans are a pricing model that offer significant savings on AWS usage (for example, on... | `apiKey` | Yes |  | Unknown |
| [AWS Schemas](https://docs.aws.amazon.com/) | Amazon EventBridge Schema Registry | `apiKey` | Yes |  | Unknown |
| [AWS Security Token Service](https://docs.aws.amazon.com/) | Security Token Service Security Token Service (STS) enables you to request... | `apiKey` | Yes |  | Unknown |
| [AWS SecurityHub](https://docs.aws.amazon.com/) | Security Hub provides you with a comprehensive view of the security state of your Amazon Web... | `apiKey` | Yes |  | Unknown |
| [AWS Signer](https://docs.aws.amazon.com/) | AWS Signer is a fully managed code signing service to help you ensure the trust and integrity of... | `apiKey` | Yes |  | Unknown |
| [AWS Single Sign-On](https://docs.aws.amazon.com/) | AWS IAM Identity Center (successor to AWS Single Sign-On) Portal is a web service that makes it... | `apiKey` | Yes |  | Unknown |
| [AWS Systems Manager Incident Manager](https://docs.aws.amazon.com/) | Systems Manager Incident Manager is an incident management console designed to help users... | `apiKey` | Yes |  | Unknown |
| [AWS Well-Architected Tool](https://docs.aws.amazon.com/) | Well-Architected Tool This is the Well-Architected Tool API... | `apiKey` | Yes |  | Unknown |
| [AWS X-ray](https://aws.amazon.com/documentation/xray) | The AWS X-Ray API allows you to manage debug traces, retrieve service maps, data created by... | No | Yes |  | Unknown |
| [AWSMarketplace Metering](https://docs.aws.amazon.com/) | AWS Marketplace Metering Service This reference provides descriptions of... | `apiKey` | Yes |  | Unknown |
| [Axesso Api](https://axesso.de) | Use this api to fetch information to Amazon products and more. | No | No |  | Unknown |
| [Axosoft](https://developer.axosoft.com) | The Axosoft API allows developers to integrate their applications with the Axosoft data and... | No | Yes |  | Unknown |
| [Azure Action Groups](https://docs.microsoft.com/en-us/rest/api/) | Azure Action Groups API | `OAuth` | Yes |  | Unknown |
| [Azure Activity Log Alerts](https://docs.microsoft.com/en-us/rest/api/) | Azure Activity Log Alerts API | `OAuth` | Yes |  | Unknown |
| [Azure Addons Resource Provider](https://docs.microsoft.com/en-us/rest/api/) | The service for managing third party addons. | `OAuth` | Yes |  | Unknown |
| [Azure Artifact](https://docs.microsoft.com/en-us/rest/api/) | Artifact API | `OAuth` | Yes |  | Unknown |
| [Azure azureactivedirectory](https://docs.microsoft.com/en-us/rest/api/) | Azure Active Directory Client. | `OAuth` | Yes |  | Unknown |
| [Azure AzureAnalysisServices](https://docs.microsoft.com/en-us/rest/api/) | The Azure Analysis Services Web API provides a RESTful set of web services that enables users to... | `OAuth` | Yes |  | Unknown |
| [Azure AzureDeploymentManager](https://docs.microsoft.com/en-us/rest/api/) | REST APIs for orchestrating deployments using the Azure Deployment Manager (ADM). See https://docs. | `OAuth` | Yes |  | Unknown |
| [Azure BatchAI](https://docs.microsoft.com/en-us/rest/api/) | The Azure BatchAI Management API. | `OAuth` | Yes |  | Unknown |
| [Azure BatchService](https://docs.microsoft.com/en-us/rest/api/) | A client for issuing REST requests to the Azure Batch service. | `OAuth` | Yes |  | Unknown |
| [Azure Bot Service](https://docs.microsoft.com/en-us/rest/api/) | Azure Bot Service is a platform for creating smart conversational agents. | `OAuth` | Yes |  | Unknown |
| [Azure Container Registry](https://docs.microsoft.com/en-us/rest/api/) | Metadata API definition for the Azure Container Registry runtime | `OAuth` | Yes |  | Unknown |
| [Azure Cosmos DB](https://docs.microsoft.com/en-us/rest/api/) | Azure Cosmos DB Database Service Resource Provider REST API | `OAuth` | Yes |  | Unknown |
| [Azure Customer Lockbox](https://docs.microsoft.com/en-us/rest/api/) | Azure Customer Lockbox API Reference | `OAuth` | Yes |  | Unknown |
| [Azure customproviders](https://docs.microsoft.com/en-us/rest/api/) | Allows extension of ARM control plane with custom resource providers. | `OAuth` | Yes |  | Unknown |
| [Azure Data Catalog Resource Provider](https://docs.microsoft.com/en-us/rest/api/) | The Azure Data Catalog Resource Provider Services API. | `OAuth` | Yes |  | Unknown |
| [Azure Data Lake Storage](https://docs.microsoft.com/en-us/rest/api/) | Azure Data Lake Storage provides storage for Hadoop and other big data workloads. | `OAuth` | Yes |  | Unknown |
| [Azure Data Migration Service Resource Provider](https://docs.microsoft.com/en-us/rest/api/) | The Data Migration Service helps people migrate their data from on-premise database servers to... | `OAuth` | Yes |  | Unknown |
| [Azure Dedicated HSM Resource Provider](https://docs.microsoft.com/en-us/rest/api/) | The Azure management API provides a RESTful set of web services that interact with Azure Dedicated... | `OAuth` | Yes |  | Unknown |
| [Azure DeviceServices](https://docs.microsoft.com/en-us/rest/api/) | Use this API to manage the Windows IoT device services in your Azure subscription. | `OAuth` | Yes |  | Unknown |
| [Azure DevOps](https://docs.microsoft.com/en-us/rest/api/azure/devops) | The Azure DevOps basic components of a REST API request/response pair | `apiKey` | Yes |  | Free |
| [Azure Dynamics Telemetry](https://docs.microsoft.com/en-us/rest/api/) | Dynamics Telemetry API | `OAuth` | Yes |  | Unknown |
| [Azure EngagementFabric](https://docs.microsoft.com/en-us/rest/api/) | Microsoft Customer Engagement Fabric | `OAuth` | Yes |  | Unknown |
| [Azure Execution Service](https://docs.microsoft.com/en-us/rest/api/) | Execution Service API | `OAuth` | Yes |  | Unknown |
| [Azure ExpressRouteCrossConnection REST APIs](https://docs.microsoft.com/en-us/rest/api/) | The Microsoft Azure ExpressRouteCrossConnection Resource Provider REST APIs describes the... | `OAuth` | Yes |  | Unknown |
| [Azure Guest Diagnostic Settings](https://docs.microsoft.com/en-us/rest/api/) | API to Add/Remove/List Guest Diagnostics Configuration to Azure Resources | `OAuth` | Yes |  | Unknown |
| [Azure Guest Diagnostic Settings Association](https://docs.microsoft.com/en-us/rest/api/) | API to Add/Remove/List Guest Diagnostics Settings Association for Azure Resources | `OAuth` | Yes |  | Unknown |
| [Azure GuestConfiguration](https://docs.microsoft.com/en-us/rest/api/) | GuestConfiguration API | `OAuth` | Yes |  | Unknown |
| [Azure HyperDrive](https://docs.microsoft.com/en-us/rest/api/) | HyperDrive REST API | `OAuth` | Yes |  | Unknown |
| [Azure Language Understanding Intelligent Service (LUIS) Endpoint API for running predictions and extracting user intentions and entities from utterances.](https://docs.microsoft.com/en-us/rest/api/) | Language Understanding Intelligent Service (LUIS) Endpoint API for running predictions and... | `OAuth` | Yes |  | Unknown |
| [Azure Log Analytics](https://docs.microsoft.com/en-us/rest/api/) | Azure Log Analytics API reference | `OAuth` | Yes |  | Unknown |
| [Azure Log Analytics Query Packs](https://docs.microsoft.com/en-us/rest/api/) | Azure Log Analytics API reference for management of saved Queries within Query Packs. | `OAuth` | Yes |  | Unknown |
| [Azure LUIS Programmatic](https://docs.microsoft.com/en-us/rest/api/) | LUIS Programmatic API | `OAuth` | Yes |  | Unknown |
| [Azure Marketplace RP Service](https://docs.microsoft.com/en-us/rest/api/) | Marketplace RP Service API | `OAuth` | Yes |  | Unknown |
| [Azure MarketplaceOrdering.Agreements](https://docs.microsoft.com/en-us/rest/api/) | REST API for MarketplaceOrdering Agreements. | `OAuth` | Yes |  | Unknown |
| [Azure Metrics](https://docs.microsoft.com/en-us/rest/api/) | A client for issuing REST requests to the Azure metrics service. | `OAuth` | Yes |  | Unknown |
| [Azure Microsoft Insights](https://docs.microsoft.com/en-us/rest/api/) | Azure Monitor client to create/update/delete Scheduled Query Rules | `OAuth` | Yes |  | Unknown |
| [Azure Microsoft NetApp](https://docs.microsoft.com/en-us/rest/api/) | Microsoft NetApp Azure Resource Provider specification | `OAuth` | Yes |  | Unknown |
| [Azure Microsoft Storage Sync](https://docs.microsoft.com/en-us/rest/api/) | Microsoft Storage Sync Service API | `OAuth` | Yes |  | Unknown |
| [Azure Microsoft.Support](https://docs.microsoft.com/en-us/rest/api/) | Microsoft Azure Support Resource Provider. | `OAuth` | Yes |  | Unknown |
| [Azure Migrate](https://docs.microsoft.com/en-us/rest/api/) | Move your workloads to Azure. | `OAuth` | Yes |  | Unknown |
| [Azure Migrate Hub](https://docs.microsoft.com/en-us/rest/api/) | Migrate your workloads to Azure. | `OAuth` | Yes |  | Unknown |
| [Azure Mixed Reality](https://docs.microsoft.com/en-us/rest/api/) | Mixed Reality Resource Provider REST API | `OAuth` | Yes |  | Unknown |
| [Azure Monitor Private Link Scopes](https://docs.microsoft.com/en-us/rest/api/) | Azure Monitor API reference for Private Links Scopes management. | `OAuth` | Yes |  | Unknown |
| [Azure NetworkExperiments](https://docs.microsoft.com/en-us/rest/api/) | These are the Network Experiment APIs. | `OAuth` | Yes |  | Unknown |
| [Azure portal](https://docs.microsoft.com/en-us/rest/api/) | Allows creation and deletion of Azure Shared Dashboards. | `OAuth` | Yes |  | Unknown |
| [Azure PowerBIDedicated](https://docs.microsoft.com/en-us/rest/api/) | PowerBI Dedicated Web API provides a RESTful set of web services that enables users to create,... | `OAuth` | Yes |  | Unknown |
| [Azure Relay](https://docs.microsoft.com/en-us/rest/api/) | Use these API to manage Azure Relay resources through Azure Resource Manager. | `OAuth` | Yes |  | Unknown |
| [Azure Reservation](https://docs.microsoft.com/en-us/rest/api/) | This API describe Azure Reservation | `OAuth` | Yes |  | Unknown |
| [Azure Resource Graph](https://docs.microsoft.com/en-us/rest/api/) | Azure Resource Graph API Reference | `OAuth` | Yes |  | Unknown |
| [Azure Resource Graph Query](https://docs.microsoft.com/en-us/rest/api/) | Azure Resource Graph Query API Reference | `OAuth` | Yes |  | Unknown |
| [Azure Run History APIs](https://docs.microsoft.com/en-us/rest/api/) | Run History APIs API | `OAuth` | Yes |  | Unknown |
| [Azure Security Center](https://docs.microsoft.com/en-us/rest/api/) | API spec for Microsoft.Security (Azure Security Center) resource provider | `OAuth` | Yes |  | Unknown |
| [Azure Security Insights](https://docs.microsoft.com/en-us/rest/api/) | API spec for Microsoft.SecurityInsights (Azure Security Insights) resource provider | `OAuth` | Yes |  | Unknown |
| [Azure Service Fabric Client APIs](https://docs.microsoft.com/en-us/rest/api/) | Service Fabric REST Client APIs allows management of Service Fabric clusters, applications and... | `OAuth` | Yes |  | Unknown |
| [Azure Software Plan RP](https://docs.microsoft.com/en-us/rest/api/) | Azure software plans let users create and manage licenses for various software used in Azure. | `OAuth` | Yes |  | Unknown |
| [Azure SQL Database](https://docs.microsoft.com/en-us/rest/api/) | Provides create, read, update and delete functionality for Azure SQL Database resources including... | `OAuth` | Yes |  | Unknown |
| [Azure SQL Database Backup](https://docs.microsoft.com/en-us/rest/api/) | Provides read functionality for Azure SQL Database Backups | `OAuth` | Yes |  | Unknown |
| [Azure SQL Database Backup Long Term Retention Policy](https://docs.microsoft.com/en-us/rest/api/) | Provides read and update functionality for Azure SQL Database backup long term retention policy | `OAuth` | Yes |  | Unknown |
| [Azure SQL Database Datamasking Policies and Rules](https://docs.microsoft.com/en-us/rest/api/) | Provides create, read, update and delete functionality for Azure SQL Database datamasking policies... | `OAuth` | Yes |  | Unknown |
| [Azure SQL Database disaster recovery configurations](https://docs.microsoft.com/en-us/rest/api/) | Provides create, read, update, delete, and failover functionality for Azure SQL Database disaster... | `OAuth` | Yes |  | Unknown |
| [Azure SQL Database Import/Export spec](https://docs.microsoft.com/en-us/rest/api/) | Provides create and read functionality for Import/Export operations on Azure SQL databases. | `OAuth` | Yes |  | Unknown |
| [Azure SQL Database replication links](https://docs.microsoft.com/en-us/rest/api/) | Provides read, delete, and failover functionality for Azure SQL Database replication links. | `OAuth` | Yes |  | Unknown |
| [Azure SQL Server API spec](https://docs.microsoft.com/en-us/rest/api/) | The Azure SQL Server management API provides a RESTful set of web services that interact with Azure... | `OAuth` | Yes |  | Unknown |
| [Azure SQL Server Backup Long Term Retention Vault](https://docs.microsoft.com/en-us/rest/api/) | Provides read and update functionality for Azure SQL Server backup long term retention vault | `OAuth` | Yes |  | Unknown |
| [Azure StorageImportExport](https://docs.microsoft.com/en-us/rest/api/) | The Storage Import/Export Resource Provider API. | `OAuth` | Yes |  | Unknown |
| [Azure VM Insights Onboarding](https://docs.microsoft.com/en-us/rest/api/) | API to manage VM Insights Onboarding | `OAuth` | Yes |  | Unknown |
| [Azure VMwareCloudSimple](https://docs.microsoft.com/en-us/rest/api/) | Description of the new service | `OAuth` | Yes |  | Unknown |
| [Azure Workload Monitor](https://docs.microsoft.com/en-us/rest/api/) | APIs for workload monitoring | `OAuth` | Yes |  | Unknown |
| [BaasBox](https://www.baasbox.com/documentation/?shell#api) | With the BaasBox API, developers can integrate backend solutions to mobile applications. | No | Yes |  | Unknown |
| [backbeam](https://backbeam.io/documentation-rest) | BackBeam is a full-stack backend platform for web and mobile developers. | No | Yes |  | Unknown |
| [Backendless](https://backendless.com/docs/rest/) | Backendless is a cloud backend platform that enables developers to create apps without server... | No | Yes |  | Unknown |
| [Backlog](https://developer.nulab.com/docs/backlog) | Backlog is a project management tool that supports collaboration and communication amongst team... | No | Yes |  | Unknown |
| [Bango Analytics](https://support.bango.com/entries/23407298-Bango-Analytics-web-service-API) | The Bango Analytics API allows users to retrieve Bango analytics data for integration with external... | No | Yes |  | Unknown |
| [Bankimport](https://www.bankimport.com/docs/rest_api) | BankImport provides users with a single place to track their financials over several accounts from... | No | Yes |  | Unknown |
| [Banuba Face AR SDK](https://www.banuba.com/facear-sdk/face-filters) | Banuba integrates immersive and engaging AR experiences with applications. | No | Yes |  | Unknown |
| [BarCode Generator](https://quickchart.io/documentation/barcode-api/) | BarCode Generator API | No | Yes |  | Unknown |
| [Base](https://www.base-api.io/) | Building quick backends | `apiKey` | Yes | Yes | Unknown |
| [BaseBear](https://api.basebear.com) | BaseBear is an online tool to tool to allow you to create databases directly on the web quickly and... | No | Yes |  | Unknown |
| [BC Laws](https://bclaws.ca) | BC Laws is an electronic library providing free public access to the laws of British Columbia. | No | Yes |  | Unknown |
| [BDApps Pro CaaS](http://dev.bdapps.com/bdapps-lite-pro/bdapps-pro-documents/caas-api) | The BDApps Pro CaaS API allows developers to monetize their apps with micropayments. | No | Yes |  | Unknown |
| [BDApps Pro SMS](http://dev.bdapps.com/bdapps-lite-pro/bdapps-pro-documents/sms-api) | The BDApps Pro SMS API allows developers to send and receive SMS using JSON objects over HTTP. | No | Yes |  | Unknown |
| [BDApps Pro Subscription](http://dev.bdapps.com/bdapps-lite-pro/bdapps-pro-documents/subscription-api) | The BDApps Pro Subscription API can provide end users with the means to register or unregister from... | No | Yes |  | Unknown |
| [BDApps Pro USSD](http://dev.bdapps.com/ussd-api) | The BDApps Pro USSD API allows developers to initiate USSD (Unstructured Supplementary Service... | No | Yes |  | Unknown |
| [Beacon Push](http://beaconpush.com/guide/rest-api) | Just include a snippet of JavaScript and you can incorporate real-time push into your website. | No | Yes |  | Unknown |
| [Beaconstac QR Code](https://www.beaconstac.com/qr-code-generator-api) | QR Code generator API built for all your business needs. | No | Yes |  | Unknown |
| [Beagle Sense](https://github.com/BeagleSense/beaglesense-api) | Beagle is a range of wireless sensors that you can place throughout your home or office. | No | Yes |  | Unknown |
| [Beanstalk](https://api.beanstalkapp.com) | Beanstalk is a hosted subversion service that allows designers and developers to store source code,... | No | Yes |  | Unknown |
| [Beeceptor](https://beeceptor.com/) | Build a mock Rest API endpoint in seconds | No | Yes | Yes | Free |
| [BeeTagg QR](http://www.beetagg.com/de/qr-api/overview) | BeeTagg is a mobile tagging service that allows users to tag physical objects and link them with... | No | Yes |  | Unknown |
| [Behind the Name](https://www.behindthename.com/api) | Behind the Name is a database of first names with etymological, geographic, and historical data. | No | Yes |  | Unknown |
| [Beintoo](https://documentation.beintoo.com/home/api-docs) | Beintoo is a mobile engagement platform provider in more than 120 Million devices, offering a... | No | Yes |  | Unknown |
| [BellaDati](http://support.belladati.com/techdoc/Developer+Tools) | BellaDati is a data analysis and management service. | No | Yes |  | Unknown |
| [BERG Cloud Little Printer Publications](http://remote.bergcloud.com/developers/littleprinter/reference) | Little Printer is a miniature printer that is designed to print a specific type of small-sized... | No | Yes |  | Unknown |
| [Betaface](http://www.betafaceapi.com) | Betaface API is a facial recognition and detection web service. | No | Yes |  | Unknown |
| [Bidvoy](https://bidvoy.net/developer) | Bidvoy is a product value tracking service for eBay. | No | Yes |  | Unknown |
| [Bigstep Metal Cloud](https://api.bigstep.com/metal-cloud#documents/194) | The Bigstep Metal Cloud API enables developers to quickly deploy their applications by integrating... | No | Yes |  | Unknown |
| [BigTable](https://cloud.google.com/bigtable/docs/apis) | BigTable is a sparse, distributed, scalable database created by Google and used by many of their... | No | Yes |  | Unknown |
| [Bim.im](http://bim.im/page/API) | Bim.im is an URL shortener service. It allows users to minimize websites URLs and track them with... | No | Yes |  | Unknown |
| [Bimshare Upload](https://www.mybimshare.com/api/upload) | Bimshare is a sharing platform for engineering and architectural models. | No | Yes |  | Unknown |
| [Bing Entity Search](https://docs.microsoft.com/en-us/azure/cognitive-services/bing-entities-search) | The Microsoft Azure Bing Entity Search API returns information about entities that Bing determines... | No | Yes |  | Unknown |
| [Bing Translator](https://learn.microsoft.com/en-us/azure/ai-services/translator/) | The Microsoft Translator services can be used in web or client applications to perform language... | No | Yes |  | Unknown |
| [BioWeb.me](https://bioweb.me/?module=Pages&id=27) | The service provides persistent URLs for science applications to maintain access to them as their... | No | Yes |  | Unknown |
| [bipio](https://github.com/bipio-server/bipio/wiki) | Bipio gives its users the means to create cheap, dynamic endpoints (either public or private) for... | No | Yes |  | Unknown |
| [Bitbar](https://docs.bitbar.com/testing/api/index.html) | The Bitbar API returns XML and JSON cloud mobile development data after making HTTP requests and... | No | Yes |  | Unknown |
| [Bitbucket](https://developer.atlassian.com/bitbucket/api/2/reference/) | Bitbucket API | `OAuth` | Yes |  | Free |
| [BitDeli](https://bitdeli.com/docs) | BitDeli provides data processing solutions. | No | Yes |  | Unknown |
| [Bitly Bit.ly](https://dev.bitly.com/) | Links are everywhere. Within every channel and every platform. | `OAuth` | Yes |  | Unknown |
| [Bitrise Build Trigger](https://devcenter.bitrise.io) | The Bitrise Build Trigger REST API allows developers to access and integrate the functionality of... | No | Yes |  | Unknown |
| [Bitvore Portfolio](https://developer.bitvore.com/) | The Portfolio API provides the ability to create, or replicate, a business portfolio in the Bitvore... | No | Yes |  | Unknown |
| [Bitvore Portfolio Management](https://developer.bitvore.com) | The Bitvore Portfolio Management API provides the ability to create, or replicate, a business... | No | Yes |  | Unknown |
| [Bitvore Precision News Municipal](https://developer.bitvore.com) | The Bitvore Precision News Municipal API provides the ability to search for news relevant to... | No | Yes |  | Unknown |
| [Blague.xyz](https://blague.xyz/) | La plus grande API de Blagues FR/The biggest FR jokes API | `apiKey` | Yes | Yes | Unknown |
| [BlazeMeter Retrieve Logs](https://guide.blazemeter.com/hc/en-us) | This BlazeMeter API retrieves the Requests Stats report in a JSON format that includes parameters... | No | Yes |  | Unknown |
| [Blekko](http://help.blekko.com/index.php/tag/api) | blekko is a search engine that sorts out spam, content farms and malware by crawling a subset of... | No | Yes |  | Unknown |
| [Blippex Firehose](https://archify.atlassian.net/wiki/display/blippexAPI/api.blippex.org) | Blippex is a search engine. Blippex indexes only pages that have been seen by real people and rank... | No | Yes |  | Unknown |
| [Blitapp](https://blitapp.com/api/) | Schedule screenshots of web pages and sync them to your cloud | `apiKey` | Yes |  | Free |
| [BlockCypher Address](https://dev.blockcypher.com/#address-api) | The BlockCypher Address API permits developers to find addresses, generate single addresses, and... | No | Yes |  | Unknown |
| [BlockCypher Asset](https://dev.blockcypher.com/#asset-api) | The BlockCypher Asset API allows to embed assets across blockchains. | No | Yes |  | Unknown |
| [BlockCypher Metadata](https://dev.blockcypher.com/#metadata-api) | The BlockCypher Metadata API allows developers to storage private and public addresses. | No | Yes |  | Unknown |
| [BlockCypher Wallet](https://dev.blockcypher.com/#wallet-api) | The BlockCypher Wallet API allows developers to organize public addresses. | No | Yes |  | Unknown |
| [Bluesoft Cosmos](https://cosmos.bluesoft.com.br/api) | This JSON formatted API offers developers access to Cosmos' 'BlueSoft' products. | No | Yes |  | Unknown |
| [Blynk-Cloud](https://blynkapi.docs.apiary.io/#) | Control IoT Devices from Blynk IoT Cloud | `apiKey` | No |  | Free |
| [Bontq](http://www.bontq.com/help/api.php) | Bontq is a site bug tracking and issue tracking service that is hosted in the cloud. | No | Yes |  | Unknown |
| [BookingSync](https://developers.bookingsync.com) | The BookingSync API provides access to our entire property management system, and it's growing... | No | Yes |  | Unknown |
| [Boopsie](https://www.boopsie.com/connect-to-any-ils-with-accessils) | The Boopsie REST API allows developers to access and integrate the functionality of Boopsie with... | No | Yes |  | Unknown |
| [Bootswatch](https://bootswatch.com/help/#api) | The Bootswatch API allows users to integrate web development themes into their own applications. | No | Yes |  | Unknown |
| [Bored](https://www.boredapi.com/) | Find random activities to fight boredom | No | Yes |  | Unknown |
| [Botify](https://botify.com) | Botify Saas API | `apiKey` | Yes |  | Unknown |
| [Boxmeup](https://github.com/boxmeup/Boxmeup/wiki/API-Documentation) | Boxmeup is designed to help users to track and organize physical objects stored in boxes. | No | Yes |  | Unknown |
| [BrainShop](http://brainshop.ai/node/260731) | BrainShop is a customizable chat bot provider with artificial intelligence capabilities. | No | Yes |  | Unknown |
| [Brainshop.ai](https://brainshop.ai/) | Make A Free A.I Brain | `apiKey` | Yes | Yes | Free |
| [Bramus Simple REST API Explorer](https://github.com/bramus/simple-rest-api-explorer) | Simple REST API Explorer is a method for showcasing and exploring all endpoints of a RESTful API. | No | Yes |  | Unknown |
| [Branch Metrics Deep Linking](https://help.branch.io/apidocs/deep-linking-api) | The Branch Metrics REST API allows developers to access and integrate the functionality of Branch... | No | Yes |  | Unknown |
| [Brand.dev](https://www.brand.dev/) | API to personalize your product with logos, colors, and company info from any domain | `apiKey` | Yes | Yes | Free |
| [Brandify](https://www.brandify.com/products/insights) | Brandify is an industry-leading provider of location-based digital marketing solutions providing... | No | Yes |  | Unknown |
| [BrAPI Breeding](https://brapi.org/documentation) | The BrAPI Breeding API provides access to a plant database with plant phenotype and genotype data. | No | Yes |  | Unknown |
| [Brave Search](https://brave.com/search/api/) | An index of billions of pages in a single call | `apiKey` | Yes | No | Free |
| [Breeze](https://breeze.pm/api) | Breeze is a project management tool that provides visual boards for storing tasks and visualizing... | No | Yes |  | Unknown |
| [Breezy](https://developer.breezy.hr/) | Breezy is a mobile printing app that allows multiple devices in a mobile workforce to print from... | No | Yes |  | Unknown |
| [Brickset](https://www.brickset.com/webservices) | The service provides lookup access to a database of Lego brand toy bricks and construction sets... | No | Yes |  | Unknown |
| [Bridge](https://rets.ly/docs/retsly) | The Bridge API (formerly Retsly) works with industry partners to provide a consistent API that... | No | Yes |  | Unknown |
| [bridgedb webservices](https://bridgedb.org) | bridgedb webservices API | No | Yes |  | Unknown |
| [BrightContext](https://www.brightcontext.com/developers/docs) | BrightContext provides an ultra-scalable, cloud-based platform that allows developers to: 1) Filter... | No | Yes |  | Unknown |
| [Brightwork](https://www.brightwork.io/#/docs/main/gettingstarted) | The Brightwork REST API allows developers to access and integrate the functionality of Brightwork... | No | Yes |  | Unknown |
| [BrowserCat](https://www.browsercat.com/) | Headless browser API for automation, scraping, and more | `apiKey` | Yes | Yes | Free |
| [BrowserStack](https://github.com/browserstack/api) | BrowserStack is a service that allows developers to securely test their HTML, CSS, or JavaScript... | No | Yes |  | Unknown |
| [Browshot](https://browshot.com/api/documentation) | Easily make screenshots of web pages in any screen size, as any device | `apiKey` | Yes | Yes | Free |
| [Bt.tn](https://my.bt.tn/api) | Bt.tn is a big physical button powered by AA batteries that can be programmed to perform certain... | No | Yes |  | Unknown |
| [Btc.to](https://btc.to) | Btc.co allows users to shorten bitcoin addresses. | No | Yes |  | Unknown |
| [Bubble](https://manual.bubble.io/core-resources/api) | The Bubble API enables developers to access Bubble's platform programmatically in order to send... | No | Yes |  | Unknown |
| [Bufferapp](https://bufferapp.com) | Social media management for marketers and agencies | `OAuth` | Yes |  | Unknown |
| [Bugfender](https://github.com/bugfender) | The Bugfender API performs remote logging functions for iOS and Android applications. | No | Yes |  | Unknown |
| [BugHerd](https://www.bugherd.com/api_v2) | BugHerd is a visual bug tracking and project management app built for web developers and designers. | No | Yes |  | Unknown |
| [BugSnag](https://bugsnag.com/docs/api) | Bugsnag captures exceptions from web, mobile, and desktop applications in real-time, so they can be... | No | Yes |  | Unknown |
| [Bugsnag Accounts](https://bugsnag.com/docs/api/accounts) | The Bugsnag Accounts REST API allows developers to access and integrate the accounts functionality... | No | Yes |  | Unknown |
| [Bugsnag Errors](https://bugsnag.com/docs/api/errors) | The Bugsnag Errors REST API allows developers to access and integrate the errors functionality of... | No | Yes |  | Unknown |
| [Bugsnag Events](https://bugsnag.com/docs/api/events) | The Bugsnag Events REST API allows developers to access and integrate the event functionality of... | No | Yes |  | Unknown |
| [BugSnag Notifier](https://bugsnag.com/docs/notifier-api) | Bugsnag is a software that detects and diagnose crashes in web or mobile applications. | No | Yes |  | Unknown |
| [Bugsnag Projects](https://bugsnag.com/docs/api/projects) | The Bugsnag Projects REST API allows developers to access and integrate the projects functionality... | No | Yes |  | Unknown |
| [Bugsnag Users](https://bugsnag.com/docs/api/users) | The Bugsnag Users REST API allows developers to access and integrate the users functionality of... | No | Yes |  | Unknown |
| [Bugzilla](https://wiki.mozilla.org/Bugzilla:REST_API) | Bugzilla is the bug tracking and reporting system created and used by Mozilla. | No | Yes |  | Unknown |
| [Buildasearch](https://www.buildasearch.com) | BuildaSearch site search technology is a fully scalable hosted search solution. | No | Yes |  | Unknown |
| [Buildkite](https://buildkite.com/docs/rest-api) | The Buildkite API integrates software automation processes, including organization, pipelines,... | No | Yes |  | Unknown |
| [Buildkite Agents](https://buildkite.com/docs/apis/rest-api/agents) | The Buildkite Agents API integrates lists of paginates agents into applications, useful when... | No | Yes |  | Unknown |
| [ButterCMS](https://buttercms.com/docs) | ButterCMS is an API-first CMS for rapidly building CMS-powered websites in any programming language. | No | Yes |  | Unknown |
| [ButterCMS Webhooks](https://buttercms.com/docs/api/#webhooks) | The ButterCMS Webhooks API allows you to Get notifications for content changes. | No | Yes |  | Unknown |
| [Bypass CAPTCHA](https://bypasscaptcha.com/faq.php) | Bypass Captcha is a CAPTCHA solving service. | No | Yes |  | Unknown |
| [C6 Huzip](http://www.c6.hu/huzip) | The C6 Huzip API allows users to search for the zip code of any Hungarian city, or of a specific... | No | Yes |  | Unknown |
| [Cache Horse](https://cache.horse) | Combine/batch & cache multiple HTTP requests to save on API quotas, speed up & simplify your app | `apiKey` | Yes | Yes | Free |
| [Call Control](https://www.callcontrol.com/documentation) | API for blocking phone calls with Call Control. | `apiKey` | Yes |  | Unknown |
| [CallFire API Documentation](https://www.callfire.com) | CallFire | `Basic` | Yes |  | Unknown |
| [CallMyApp](https://callmyapp.com) | CallMyApp is an online time-based 'callback' service meant to be used as an online 'cron' service. | No | Yes |  | Unknown |
| [Canada-holidays Canada Holidays](https://canada-holidays.ca/api) | This API lists all 31 public holidays for all 13 provinces and territories in Canada, including... | `apiKey` | Yes |  | Unknown |
| [CANDY HOUSE Sesame](https://docs.candyhouse.co) | The CANDY HOUSE Sesame API returns JSON data, providing a smart key to unlock a door via Wi-Fi. | No | Yes |  | Unknown |
| [Cannabis Reports](https://developers.cannabisreports.com) | The Cannabis Reports API provides developers a way to access a growing list of more than 16,000... | No | Yes |  | Unknown |
| [Capptain](http://www.capptain.com) | Capptain is a mobile apps analytics service that allows users to track and communicate with their... | No | Yes |  | Unknown |
| [Captain Pass](https://www.captainpass.com) | Captain Pass is a web service allowing businesses to build, distribute, and manage PassBook Passes. | No | Yes |  | Unknown |
| [CaptchaBot](http://doc.captchabot.com/connection) | CaptchaBot is a Captcha solving service that automatically deciphers the image. | No | Yes |  | Unknown |
| [Caret](https://xwiki.caret.co/bin/view/Services) | The Caret API lets users harness their smart device sensors and interconnect them with third party... | No | Yes |  | Unknown |
| [Carvoyant](https://www.carvoyant.com) | Carvoyant is a middleware platform that's designed to help developers create applications that can... | No | Yes |  | Unknown |
| [Cascade CMS](https://www.hannonhill.com/cascadecms/latest/developing-in-cascade/rest-api/index.html) | Cascade CMS by Hannon Hill offers a technology agnostic content management system with support for... | No | Yes |  | Unknown |
| [Cascade CMS SOAP](https://www.hannonhill.com/cascadecms/latest/developing-in-cascade/soap-web-services-api/index.html) | The Cascade CMS SOAP API provides XML-based operation support associated with publish triggers,... | No | Yes |  | Unknown |
| [Caspio Web Services](https://www.caspio.com/extend/platform-extensions/web-services.aspx) | Caspio Bridge is a cloud database platform used to build interactive web applications through... | No | Yes |  | Unknown |
| [CastingWords](https://castingwords.com/docs/developer/SimpleAPI.html) | CastingWords is an online transcription service aimed at technology oriented online speakers. | No | Yes |  | Unknown |
| [Catalyze.io Mock](https://hl7-docs.catalyze.io/#TheHL7MockAPI) | The Catalyze.io API is available as a simulation for initial implementation in healthcare practices. | No | Yes |  | Unknown |
| [CatApplus](http://appsbeam.ergsap.com/api/catapplus/catapplus_stats.php) | CatApplus is a service that lets users automatically categorize their android apps. | No | Yes |  | Unknown |
| [CDNJS](https://api.cdnjs.com/libraries/jquery) | Library info on CDNJS | No | Yes |  | Free |
| [CDYNE SpellChecker](http://wsf.cdyne.com/SpellChecker/check.asmx?op=CheckTextBody) | The CDYNE SpellChecker is an API that allows users to check a body of text for spelling errors. | No | Yes |  | Unknown |
| [Changelogs.md](https://changelogs.md) | Structured changelog metadata from open source projects | No | Yes |  | Unknown |
| [Charities Commission](https://api-portal.charitycommission.gov.uk/) | The Charities Commission of New Zealand is a publicly available database of registered charities... | No | Yes |  | Unknown |
| [charlieharvey.org.uk content](https://charlieharvey.org.uk/about/api) | Charlieharvey.org.uk is a personal website for an individual who is a fan of programming, drinking... | No | Yes |  | Unknown |
| [ChatterBox](https://chatter-box.io/) | One API for meeting bots on Zoom, Meet & Teams | `apiKey` | Yes | Yes | Free |
| [Checklist.com](https://checklist.com/developers) | Checklist.com provides a checklist platform that helps people manage their daily lives with... | No | Yes |  | Unknown |
| [Checkmarkable](https://checkmarkable.com/api) | Checkmarkable is an online service that helps users document their processes with simple, reusable... | No | Yes |  | Unknown |
| [CheckMobi](https://checkmobi.com/documentation/) | The CheckMobi API returns verifying data for mobile communications, including caller, SMS, and... | No | Yes |  | Unknown |
| [Christian Social Graph](https://www.christianvolunteering.org/apiaccess.jsp) | ChristianVolunteering.org is a directory of Christian volunteer opportunities in a variety of... | No | Yes |  | Unknown |
| [ChurchZip](https://www.churchzip.com) | ChurchZip provides a global locator service for Christian churches. | No | Yes |  | Unknown |
| [Cilenis](http://cilenisapi.com/private-beta) | Cilenis is a language analysis service that helps users to analyze and extract information of texts. | No | Yes |  | Unknown |
| [Ciprand](https://github.com/polarspetroll/ciprand) | Secure random string generator | No | Yes | No | Free |
| [Cisco Data in Motion](https://developer.cisco.com/fileMedia/download/c9da30d0-8f6b-4f45-b8be-6ff26f03f8ac) | The Cisco Data in Motion (DMo) API is a data management solution for networked connections such as... | No | Yes |  | Unknown |
| [Cisco Flare Websocket](https://d1nmyq4gcgsfi5.cloudfront.net/site/flare/learn/api/#socket-io-server-to-client-3530) | The Cisco Flare Websocket API provides streaming, real-time interactions with the Flare mobile... | No | Yes |  | Unknown |
| [Cisco IOx Metrics](https://developer.cisco.com/site/iox/docs) | The Cisco IOx Metrics API is designed to synchronize the monitoring of data flows and error events... | No | Yes |  | Unknown |
| [cisimple](https://www.cisimple.com/api) | cisimple is a testing and deployment service for mobile applications. | No | Yes |  | Unknown |
| [CitedIn](http://www.citedin.org/#fragment-4) | Citedin finds citations based on a PubMed identifier. | No | Yes |  | Unknown |
| [City of Chicago Divvy Bicycle Stations - Historical](https://dev.socrata.com/foundry/data.cityofchicago.org/eq45-8inv) | The City of Chicago Divvy Bicycle Stations - Historical Stations API captures past data and trends... | No | Yes |  | Unknown |
| [CKAN](https://docs.ckan.org/en/latest) | CKAN (Comprehensive Knowledge Archive Network) is an open-source data portal platform that provides... | No | Yes |  | Unknown |
| [ClearBlade](https://clearblade.com) | A friendly little API to help you interact with the ClearBlade platform. | No | Yes |  | Unknown |
| [Cleeng](https://developers.cleeng.com/) | Cleeng helps publishers monetize their content via subscriptions, advertisements, or direct... | No | Yes |  | Unknown |
| [Clever-Cloud](https://clever-cloud.com) | Public API for managing Clever-Cloud data and products | No | Yes |  | Unknown |
| [CleverTap](https://support.clevertap.com/server/overview) | The CleverTap API integrates engagement into mobile applications. | No | Yes |  | Unknown |
| [ClickMeter](https://support.clickmeter.com/hc/en-us/categories/201474986) | Monitor, compare and optimize your marketing links | `apiKey` | Yes |  | Unknown |
| [clickup20](https://clickup.com) | Polls is a simple API allowing consumers to view polls and vote in them. | No | Yes |  | Unknown |
| [Clico](https://cli.com/swagger-ui/index.html?configUrl=/v3/api-docs/swagger-config) | URL shortener service | `apiKey` | Yes |  | Unknown |
| [Clio](https://docs.developers.clio.com/) | Clio is a legal practice management system suitable for small to mid-sized law firms. | No | Yes |  | Unknown |
| [Clipped](http://www.clipped.me/api.html) | Clipped is a web and mobile application that summarizes articles, documents, and other content into... | No | Yes |  | Unknown |
| [Cloud CMA](https://cloudcma.com/developers) | Cloud CMA is an online report generator for real estate agents and brokers. | No | Yes |  | Unknown |
| [Cloud Elements Database Hub](https://developers.cloud-elements.com/docs/hubs/database) | The Cloud Elements Database Hub API provides developers with RESTful access to PostgreSQL, MySQL,... | No | Yes |  | Unknown |
| [Cloud Wallet](https://apidocs.walletapi.cloud) | Cloud Wallet is a highly scalable ledger layer that enables closed-loop transfers between users or... | No | Yes |  | Unknown |
| [Cloudflare Trace](https://github.com/fawazahmed0/cloudflare-trace-api) | Get IP Address, Timestamp, User Agent, Country Code, IATA, HTTP Version, TLS/SSL Version & More | No | Yes | Yes | Free |
| [CloudHub](http://www.mulesoft.org/documentation/display/current/API) | CloudHub is an application development and management platform. | No | Yes |  | Unknown |
| [CloudMine](https://cloudmine.me/docs) | CloudMine is a backend-as-a-service platform that removes the need for mobile app developers to... | No | Yes |  | Unknown |
| [CloudObjects Object](https://cloudobjects.io/cloudobjects.io/ObjectAPI/1.0) | The CloudObjects Object API is a public interface used to get objects, vendors, and files. | No | Yes |  | Unknown |
| [CloudObjects Web](https://cloudobjects.io/webapi.cloudobjects.io/WebAPI) | The CloudObjects Web API is an interface that can be accessed through the HTTP protocol for... | No | Yes |  | Unknown |
| [CloudRail](http://cloudrail.com/developers/documentation) | The CloudRail REST API allows access to multiple cloud services via a single interface. | No | Yes |  | Unknown |
| [Cloudrf Cloud-RF](https://cloudrf.com) | Use this JSON API to build and test radio links for any radio, anywhere. | `apiKey` | Yes |  | Unknown |
| [Cloudways](https://developers.cloudways.com/docs) | Cloudways offers integration with the Thunderstack powered platform of Cloudways which automates... | No | Yes |  | Unknown |
| [Clubhouse](https://clubhouse.io/api/rest/v2) | Clubhouse is a project management platform designed to support software developers. | No | Yes |  | Unknown |
| [Clubhouse](https://clubhouseapi.com) | Clubhouse API | No | Yes |  | Unknown |
| [Clubhouse Webhooks](https://clubhouse.io/api/webhook/v1) | The Clubhouse Webhooks API allows users to get notified about events that happen in the Clubhouse... | No | Yes |  | Unknown |
| [CMTelecom Address Book](https://docs.cmtelecom.com/address-book/v1.0) | The CMTelecom Address Book API allows importing contacts in bulk for messaging, payments, and... | No | Yes |  | Unknown |
| [CMTelecom AutoCollect](https://docs.cmtelecom.com/autocollect/v1.0.0) | The CMTelecom AutoCollect API returns data of scheduled payments for users. | No | Yes |  | Unknown |
| [CMTelecom BulkSMS](https://docs.cmtelecom.com/bulk-sms/v1.0) | The CMTelecom BulkSMS API allows sending a high volume of text messages. | No | Yes |  | Unknown |
| [CMTelecom iDIN](https://docs.cmtelecom.com/idin/v1.0.0) | The CMTelecom iDIN API enables customer identification with websites as if they were accessing... | No | Yes |  | Unknown |
| [CMTelecom One Time Passwords](https://docs.cmtelecom.com/one-time-passwords/v1.0) | The CMTelecom One Time Passwords API allows users to be authenticated via SMS, delivering or... | No | Yes |  | Unknown |
| [CMTelecom Transactions](https://docs.cmtelecom.com/transactions-api/v1.4.0) | The CMTelecom Transactions API allows users to review the insight of individual messages in their... | No | Yes |  | Unknown |
| [CMTelecom Voice](https://docs.cmtelecom.com/voice-api/v2.0) | The CMTelecom Voice API allows developers to write interactive voice responses. | No | Yes |  | Unknown |
| [CocoaPods](http://blog.cocoapods.org/Search-API-Version-1) | CocoaPods is a dependency manager for Objective-C. | No | Yes |  | Unknown |
| [Codat Expense](https://www.codat.io/) | The API for Sync for Expenses. Sync for Expenses is an API and a set of supporting tools. | `apiKey` | Yes |  | Unknown |
| [Codeanywhere](http://codeanywhere.net/ws/index.php/ws?) | Codeanywhere is a browser-based code editor with an integrated FTP client. | No | Yes |  | Unknown |
| [Codebase](http://support.codebasehq.com/kb) | Codebase is a software project management tool that includes powerful, secure, UK-based storage for... | No | Yes |  | Unknown |
| [Codebox](https://api.codebox.io/api) | Codebox is a cloud-based Integrated Development Environment (IDE) that can run on all kinds of... | No | Yes |  | Unknown |
| [Codebump Zip Codes](http://www.geosvc.com/docs/Ref) | Zip Codes provides an API for searching zip code, city, and area code databases for Canada and the... | No | Yes |  | Unknown |
| [CodePen](http://blog.codepen.io/documentation) | Codepen is a browser-based HTML, CSS, and JavaScript code editor that supplies an instant preview... | No | Yes |  | Unknown |
| [CodeSnipp.it](https://www.mashape.com/jcinteractive/Codesnipp-it) | Codesnipp.it is a social sharing site where developers can follow other developers, share their... | No | Yes |  | Unknown |
| [Cogent Mobile](http://cogentmobile.com/Home/Developers) | Cogent Mobile is a voice CRM application that allows users to manage their CRM with voice commands,... | No | Yes |  | Unknown |
| [Color Name](https://elastiq.ch/) | An API that provides names for colors based on their hex value | No | Yes |  | Unknown |
| [Cometdocs](http://www.cometdocs.com/conversionApiTools) | From humble beginnings as an online file conversion system, Cometdocs has evolved into... | No | Yes |  | Unknown |
| [Comfortable](https://comfortable.io) | The Comfortable API allows developers to integrate a cloud-based CMS with any platform or framework... | No | Yes |  | Unknown |
| [commandlinefu.com](https://www.commandlinefu.com/site/api) | commandlinefu.com is a repository for storing and sharing shell commands. | No | Yes |  | Unknown |
| [Commando.io](https://docs.commando.io) | Commando.io offers a service for managing instances, droplets, and servers online. | No | Yes |  | Unknown |
| [Commercial Property Database (CPD)](https://www.cpd.co.uk/rest-api) | CPD is a commercial property database that provides access to currently available and archived... | No | Yes |  | Unknown |
| [ConfigCat Webhooks](https://docs.configcat.com/docs/integrations/notifications-webhooks) | ConfigCat.com is a feature flag and configuration management service with a free plan and unlimited... | No | Yes |  | Unknown |
| [ConstructVR](https://www.constructvr.io/faq) | The ConstructVR API allows developers to access and integrate the functionality of ConstructVR with... | No | Yes |  | Unknown |
| [Consul](https://www.consul.io/docs/index.html) | The Consul API integrates monitoring features into software, including device service discovery and... | No | Yes |  | Unknown |
| [Containership Hosts](https://twitter.com/containershipio) | The Containership Hosting REST API allows developers to access and integrate the hosting... | No | Yes |  | Unknown |
| [Contentful](https://www.contentful.com/developers/documentation/content-delivery-api) | Contentful is a content management system (CMS) for mobile and web applications. | No | Yes |  | Unknown |
| [Contentful GraphQL Content](https://www.contentful.com/developers/docs) | The GraphQL Content API provides an interface to consume both published and non published content... | No | Yes |  | Unknown |
| [Contentful Images](https://www.contentful.com/developers/docs/references/images-api/) | Used to retrieve and apply transformations to images | `apiKey` | Yes | Yes | Free |
| [Contentjet](https://contentjet.github.io/documentation/API) | The Contentjet API is a REST-based content management interface that offers custom entry types,... | No | Yes |  | Unknown |
| [ContextualWeb AutoComplete](https://contextualweb.io/search-apis/documentation) | ContextualWeb is a global search engine that crawls web pages from a variety of sources that over... | No | Yes |  | Unknown |
| [ContextualWeb Image Search](https://contextualweb.io/image-search-api/documentation) | The ContextualWeb Image Search API allows you to integrate image search capabilities into your... | No | Yes |  | Unknown |
| [ContextualWeb Web Search](https://contextualweb.io/web-search-api) | The Web Search API is simple HTTP REST API for searching webpages from all over the web. | No | Yes |  | Unknown |
| [contify newfeed api](https://www.contify.com/news-data-feeds-api-free-trial/) | Contify aggregates, deduplicates, tags and packages company information into a clean newsfeed ready... | `apiKey` | Yes |  | Unknown |
| [ContinuityApp](https://continuityapp.com/docs/api/v1) | ContinuityApp is a fully hosted application integration and deployment service. | No | Yes |  | Unknown |
| [ConvertAPI Web2Image](https://www.convertapi.com/web-image-api) | Web2Image lets developers create a screen capture image from any URL. | No | Yes |  | Unknown |
| [ConvertAPI Web2PDF](https://www.convertapi.com/) | Web2PDF lets developers create a PDF file of a web page from any URL. | No | Yes |  | Unknown |
| [ConvertAPI Word2PDF](https://www.convertapi.com/word-pdf-api) | Word2PDF lets developers create a PDF file of a Word document. | No | Yes |  | Unknown |
| [ConvExtra](http://convextra.com/api/console.php) | ConvExtra is a web extraction tool. Data can be extracted from sources such as catalogs, online... | No | Yes |  | Unknown |
| [Copyscape](https://www.copyscape.com/premium.php) | The Copyscape Premium API allows you to search the web for websites that have copied your content. | No | Yes |  | Unknown |
| [Copyscape Premium](https://www.copyscape.com/api-guide.php) | The Copyscape Premium API allows developers to integrate Copyscape Premium into a Content... | No | Yes |  | Unknown |
| [Coralogix](https://coralogix.com/integrations/coralogix-rest-api) | The Coralogix API enables developers to manage their application development logs. | No | Yes |  | Unknown |
| [CORD-19](https://docs.vespa.ai/documentation/search-api.html) | The CORD-19 Search and Navigate API is a Vespa powered search of the CORD-19 dataset. | No | Yes |  | Unknown |
| [Corelight](https://www.corelight.com) | The Corelight API allows developers to access and integrate the functionality of Corelight with... | No | Yes |  | Unknown |
| [Coret Genealogy Online](https://api.coret.org/laatste_nieuws.php) | The Dutch-language service provides family history and genealogy search functions, including an... | No | Yes |  | Unknown |
| [Corezoid](https://doc.corezoid.com/en/api/index.html) | The Corezoid API integrates platform as a service functionalities, such as access management,... | No | Yes |  | Unknown |
| [CORS Proxy](https://github.com/burhanuday/cors-proxy) | Get around the dreaded CORS error by using this proxy as a middle man | No | Yes | Yes | Free |
| [Corsfix](https://corsfix.com/docs/cors-proxy/api) | Corsfix lets you fetch any resource and bypass CORS errors, free for development environment | No | Yes | Yes | Free |
| [Cosmic JS](https://www.cosmicjs.com/docs/api) | The Cosmic JS API allows developers to access and manage their content for use in web-based or... | No | Yes |  | Unknown |
| [CoSwitched](https://www.coswitched.com/help/api) | CoSwitched sells its own M2M SIM cards, as well as SIM cards from partner operators. | No | Yes |  | Unknown |
| [Count.io](https://count.io) | Count.io is a simple counting API that can be used to keep a persistent count of anything the... | No | Yes |  | Unknown |
| [CountAPI](https://countapi.xyz) | Free and simple counting service. You can use it to track page hits and specific events | No | Yes | Yes | Unknown |
| [Coupomated Coupon DataFeed](https://www.coupomated.com/services/datafeed-engineering) | The Coupomated REST API, available in XML, CSV and JSON formats, is an automated coupon content... | No | Yes |  | Unknown |
| [CourtListener](https://www.courtlistener.com/api/rest-info) | CourtListener is a legal database which has collected nearly 2. | No | Yes |  | Unknown |
| [Crate](https://crate.io/docs) | The Crate.io REST API allows developers to access and integrate the functionalities of Crate. | No | Yes |  | Unknown |
| [Crittercism](https://www.crittercism.com/for-developers) | [Crittercism is now Apteligent. This profile is being maintained purely for historical and research... | No | Yes |  | Unknown |
| [CRO Open Services Search](https://services.cro.ie/index.aspx) | This REST API offers the public a means of integrating CRO Company and Submission data into their... | No | Yes |  | Unknown |
| [Crossbar](https://ordbok.nada.kth.se) | Tvärslå (trans. Crossbar) is a Nordic translation dictionary managed by the KTH Royal Institute... | No | Yes |  | Unknown |
| [CrowdProcess](https://crowdprocess.com/rest) | CrowdProcess provides a browser-powered distributed computing platform. | No | Yes |  | Unknown |
| [Crownpeak CMS Template](https://developer.crownpeak.com) | The CMS Template API is a point of access to the CrownPeak platform that allows you to create input... | No | Yes |  | Unknown |
| [Crownpeak Digital Quality Management](https://developer.crownpeak.com) | The Crownpeak Digital Quality Management API provides a way to integrate quality checking and DQM... | No | Yes |  | Unknown |
| [Crownpeak DQM CMS](https://developer.crownpeak.com) | The Crownpeak DQM API allows you to integrate DQM capabilities into your platforms and applications... | No | Yes |  | Unknown |
| [Crownpeak Search G2](https://developer.crownpeak.com) | The Crownpeak Search G2 API is based on the industry standard crawling, indexing and querying... | No | Yes |  | Unknown |
| [Crownpeak Service Template](https://developer.crownpeak.com) | The CMS Service Template API provides assistance in export and import, input fields, custom help... | No | Yes |  | Unknown |
| [CSC to JSON](https://apyhub.com/utility/converter-csv-json) | Convert CSV files to JSON with this API. Ideal for developers who want to automate data workflows... | `apiKey` | Yes | Yes | Free |
| [CSS Minifier](http://cssminifier.com/raw) | CSS Minifier is a simple tool for removing all unnecessary characters from the input CSS code... | No | Yes |  | Unknown |
| [CSS Sprites Generator](https://css.spritegen.com/api.php?help) | CSSspritegen.com provides a web service helping developers optimize websites by using CSS Sprites,... | No | Yes |  | Unknown |
| [CubeSensors](http://api.cubesensors.com/docs) | CubeSensors are small devices that contain seven different sensors for detecting environmental... | No | Yes |  | Unknown |
| [Culture Grid](http://www.culturegrid.org.uk/use) | Service from the UK Collections Trust to access information about collections of museums,... | No | Yes |  | Unknown |
| [cuteRadio Data](http://marxoft.co.uk/doc/cuteradio-api) | The cuteRadio Data API is a free internet radio service that provides developers access to a large... | No | Yes |  | Unknown |
| [CyanogenMod](http://review.cyanogenmod.org/Documentation/rest-api.html) | The CyanogenMod API is a REST API for the Gerrit Code Review. | No | Yes |  | Unknown |
| [Cycle](https://docs.cycle.io) | The Cycle API integrates platform as a service features for business that manage containers for... | No | Yes |  | Unknown |
| [Dandelion dataTXT-NEX](https://dandelion.eu/docs/api/datatxt/nex/v1) | Dandelion API is a semantic API to extract meaning and insights from texts in several languages... | No | Yes |  | Unknown |
| [dandelion dataTXT-SIM](https://dandelion.eu/docs/api/datatxt/nex/v1/) | Dandelion Text Similarity API is a semantic sentence similarity API, optimized on short sentences... | No | Yes |  | Unknown |
| [Dandelion Language Detection Similarity](https://dandelion.eu/docs) | The Language Detection API is a simple language identification API that is useful when dealing with... | No | Yes |  | Unknown |
| [Dandelion Sentiment Analysis](https://dandelion.eu/docs/api/datatxt/sent/v1) | The Sentiment Analysis API tells whether the expressed opinion in short texts is positive,... | No | Yes |  | Unknown |
| [Dandelion Text Similarity](https://dandelion.eu/docs) | The Dandelion Text Similarity API is a semantic sentence similarity API optimized on short... | No | Yes |  | Unknown |
| [Dandelion Wikisearch](https://dandelion.eu/docs/api/datagraph/wikisearch/) | With this experimental API, users could find Wikipedia pages if they can't recall the exact title. | No | Yes |  | Unknown |
| [DaniWeb Connect](https://www.daniweb.com/members/1/dani) | User Recommendation Engine and Chat Network | `OAuth` | Yes |  | Unknown |
| [Dapr](https://dapr.io) | The Dapr API provides access to a set of tools for building scalable distributed applications. | No | Yes |  | Unknown |
| [DarkOwl DARKINT Vision](https://docs.api.darkowl.com/documentation#tag/Score) | The DarkOwl DARKINT Vision API queries DarkOwl Vision's collection of DARKINT™ data with Booleans,... | No | Yes |  | Unknown |
| [Dash Mobile](https://dash.by/developers) | The Dash Mobile REST API allows developers to access and integrate the functionality of Dash with... | No | Yes |  | Unknown |
| [Data8 Goneaway Identification Web Service](https://www.data-8.co.uk/en/services/data-validation) | Data8 is the UK's premier data solutions provider with a range of data cleansing, postcode lookup... | No | Yes |  | Unknown |
| [Data8 Postcode Lookup](https://www.data-8.co.uk/en/services/data-validation) | Data8 is the UK's premier data solutions provider with a range of data cleansing, postcode lookup... | No | Yes |  | Unknown |
| [Databox](https://databox.com/product) | Databox is a data connection and dashboard service. | No | Yes |  | Unknown |
| [DataDog](https://docs.datadoghq.com/api) | DataDog is a multifunctional data management tool. | No | Yes |  | Unknown |
| [DataForSEO Keywords Data](https://docs.dataforseo.com/#keywords-data-api) | The DataForSEO Keywords Data API integrates keywords selection and analysis efficiency into search... | No | Yes |  | Unknown |
| [Datalanche](https://www.datalanche.com) | Datalanche is a database and server management service for working with structured data. | No | Yes |  | Unknown |
| [DataOne VIN decoder](https://www.dataonesoftware.com/web-services-vin-decoder-api) | The web service gives access to full vehicle specification data with submission of a 17-digit... | No | Yes |  | Unknown |
| [Dataseed](https://getdataseed.com/documentation) | Dataseed is an interactive data visualization and analysis platform. | No | Yes |  | Unknown |
| [DataYuge Recharge Plans](https://datayuge.com/products/recharge-plans-api) | DataYuge’s Recharge Plans API is a comprehensive database of recharge offers of various telecom... | No | Yes |  | Unknown |
| [DBMaestro](https://www.dbmaestro.com/2014/11/dbmaestro-announces-release-of-open-api) | Using the MaestroDB, developers can connect to release management services to automate the release... | No | Yes |  | Unknown |
| [Death By CAPTCHA](https://www.deathbycaptcha.com/user/api) | Death By captcha offers a CAPTCHA bypass service. | No | Yes |  | Unknown |
| [Debian Code Search](https://codesearch.debian.net) | OpenAPI for https://codesearch.debian.net/ | `apiKey` | Yes |  | Unknown |
| [Debuggify](http://developers.debuggify.net/docs) | Debuggify is a service that allows developers to find and track bugs and errors in Javascript code. | No | Yes |  | Unknown |
| [Deep Art Effects](https://deeparteffects.com) | Deep Art Effects API | `apiKey` | Yes | Yes | Unknown |
| [Deis Controller](https://deis.com/docs/workflow/reference-guide/controller-api/v2.3) | The Deis Controller API is an open source Platform as a Service (PaaS) that allows you to deploy... | No | Yes |  | Unknown |
| [Density](https://docs.density.io/v2) | Density operates as a people counter platform. | No | Yes |  | Unknown |
| [Detectlanguage.com](https://detectlanguage.com) | Language Detection API is a free service that determines what potential languages a word or phrase... | No | Yes |  | Unknown |
| [Device42](https://docs.device42.com/api-overview) | Device42 is an infrastructure management provider that offers data center management, IP address... | No | Yes |  | Unknown |
| [DeviceAtlas](https://deviceatlas.com/resources/enterprise-api-performance) | The service provides access to a database of mobile devices and their characteristics for use in... | No | Yes |  | Unknown |
| [Diffbot Account](https://www.diffbot.com/dev/docs/account) | The Diffbot Account API allows developers to access the call volume and billing history of a token. | No | Yes |  | Unknown |
| [Diffbot Global Index](https://www.diffbot.com/dev/docs) | Search the web like a database in realtime with the Diffbot Global Index API. | No | Yes |  | Unknown |
| [Digit-Eyes](http://www.digit-eyes.com/api.html) | Digit-Eyes is an iPhone and browser app that scans UPC codes and produces audio product information. | No | Yes |  | Unknown |
| [Digital Humanities Course Registry](https://dhcr.clarin-dariah.eu/api) | The Digital Humanities Course Registry API collects metadata on academic education programs,... | No | Yes |  | Unknown |
| [DigitalHumani Reforestation as a Service](http://digitalhumani.com/docs) | DigitalHumani's RaaS (Reforestation-as-a-Service) enables developers to access reforestation... | No | Yes |  | Unknown |
| [DigitalOcean Status](https://status.digitalocean.com/api) | Status of all DigitalOcean services | No | Yes |  | Free |
| [Directional Star TimeZone Converter](https://sites.google.com/a/directionalstar.com/timezone) | Australian IT consulting firm Directional Star provides developers with a tool to automate... | No | Yes |  | Unknown |
| [Directus](https://getdirectus.com/docs) | Directus is a content management platform for custom databases. | No | Yes |  | Unknown |
| [Discourse](https://docs.discourse.org) | Discourse is a free and open discussion platform service. | No | Yes |  | Unknown |
| [DiscoverText](https://api.discovertext.com/) | The service provides analytics tools for monitoring and interpreting traffic on social media sites. | No | Yes |  | Unknown |
| [Dispatch](https://getdispatch.com) | Dispatch is an event automation system using email and webhooks. | No | Yes |  | Unknown |
| [Dispatch Platform](http://docs.dispatch.me/#intro) | The Dispatch Platform API allows to integrate customer service features into applications with the... | No | Yes |  | Unknown |
| [Divine Pride](https://www.divine-pride.net/api) | The Divine Pride API returns details from a database about the Ragnarok video game including cover... | No | Yes |  | Unknown |
| [DNS Tools](https://www.mashape.com/jack/DNS-Tools) | DNS Tools is a simple API that lets users resolve DNS addresses into IP addresses as well as the... | No | Yes |  | Unknown |
| [DNSDB](https://api.dnsdb.info) | DNSDB is a database of both passive and authoritative DNS data. | No | Yes |  | Unknown |
| [Docker](https://docs.docker.com) | Docker is an open-source platform to build, deploy, and manage containers for applications. | No | Yes |  | Unknown |
| [Docker Hub](https://docs.docker.com/docker-hub/api/latest/) | Interact with Docker Hub | `apiKey` | Yes | Yes | Free |
| [Docker Hub Accounts](https://docs.docker.com/reference/api/docker_io_accounts_api) | The Docker Hub Accounts API facilitates Docker user accounts management. | No | Yes |  | Unknown |
| [Docker Registry](https://docs.docker.com/reference/api/registry_api) | The Docker Registry REST API stores the images and graph for a set of repositories. | No | Yes |  | Unknown |
| [Docker Remote](https://docs.docker.com/reference/api/docker_remote_api_v1.18) | Docker is a open application development platform for sharing apps and repositories and automating... | No | Yes |  | Unknown |
| [Docket Alarm](https://www.docketalarm.com/site_media/api/DocketAlarmAPISpecificationV1.pdf) | Docket Alarm is a litigation activity alert service that notifies the user whenever a change... | No | Yes |  | Unknown |
| [Docoloc](https://www.docoloc.de/api/DocolocAPI.wsdl) | Docoloc is a plagiarism detection service that searches papers for text fragments that also occur... | No | Yes |  | Unknown |
| [DocRaptor](https://docraptor.com/documentation/api) | DocRaptor is a RESTful API that allows users to generate PDF and Excel documents using simple HTML. | No | Yes |  | Unknown |
| [DocuSign REST](https://developers.docusign.com/) | The DocuSign REST API provides you with a powerful, convenient, and simple Web services API for... | No | Yes |  | Unknown |
| [Docverter](http://www.docverter.com/api.html) | Docverter allows users to convert plain text documents written in HTML, Markdown, or LaTeX to PDF,... | No | Yes |  | Unknown |
| [DOE Green Energy](https://www.osti.gov/scitech) | The service from the U.S. Department of Energy provides search access to a collection of resources... | No | Yes |  | Unknown |
| [DoForms](https://support.doforms.com/hc/en-us/articles/1500001552702-doForms-REST-API-Guide) | DoForms is a mobile web form building platform that allows users to quickly make forms for use in... | No | Yes |  | Unknown |
| [Dog Gateway](https://dog-gateway.github.io/rest-api.html) | With the Dog REST API, developers will be able to integrate home and building automation into their... | No | Yes |  | Unknown |
| [DOJ News](https://www.justice.gov/developer/api-documentation/api_v1) | The U.S. Department of Justice (DOJ) News API aggregates over 14,000 press releases, speeches, blog... | No | Yes |  | Unknown |
| [Dojo Toolkit](https://dojotoolkit.org/download) | The Dojo Toolkit API provides open source modular platforms for developing cross-platform... | No | Yes |  | Unknown |
| [Domain Whois](https://docs.domaintools.com/api/lookups/whois-lookup/) | Domain Whois verifies domain availability. | No | Yes |  | Unknown |
| [DomainDb Info](https://api.domainsdb.info/) | Domain name search to find all domains containing particular words/phrases/etc | No | Yes |  | Free |
| [Domainr Developer](https://domainr.com/docs/api) | The Domainr Developer API lets you programmatically interact with Domainr, the instant domain... | No | Yes |  | Unknown |
| [Domus](https://www.domus.net/api) | The Domus API makes the Domus Estate Agent and Letting service available to be included in third... | No | Yes |  | Unknown |
| [Dooblet](https://dooblet.com/feeds/api/_) | Use the Dooblet API to get two alternatives to anything that you submit. | No | Yes |  | Unknown |
| [Doorbell](https://doorbell.io/docs/api) | Doorbell allows to receive feedback from users who interact with websites, iOS, and Android. | No | Yes |  | Unknown |
| [DoorBird Open](https://www.doorbird.com/downloads/api_lan.pdf) | The DoorBird Open API allows you to integrate the Video Door Station ecosystem into your... | No | Yes |  | Unknown |
| [DoppelMe](https://www.doppelme.com/partner/integration_api.asp) | DoppelMe is creative platform for generating personalized avatars. | No | Yes |  | Unknown |
| [doqs.dev \| PDF filling](https://doqs.dev) | doqs.dev \| PDF filling API API | `apiKey` | Yes |  | Unknown |
| [DoubleClick Search](https://developers.google.com/doubleclick-search) | The DoubleClick Search API enables users to upload data about conversions (including offline... | No | Yes |  | Unknown |
| [dpaste](http://dpaste.com/api/v2) | The dpaste API allows users to create short URLs for sharing pieces of code. | No | Yes |  | Unknown |
| [DreamFactory](https://wiki.dreamfactory.com/Main_Page) | This DreamFactory API provides a way to send push notifications to your Apps running on iOS and... | No | Yes |  | Unknown |
| [DreamFactory Live](https://wiki.dreamfactory.com/Main_Page) | DreamFactory is a free open source REST API platform that runs in the cloud or on premises. | No | Yes |  | Unknown |
| [DreamFactory SOAP](https://wiki.dreamfactory.com/Main_Page) | This DreamFactory SOAP service provides clients with REST-based access to XML-based SOAP remote... | No | Yes |  | Unknown |
| [Drivet URL Shortener](https://wiki.drivet.xyz/en/url-shortener/add-links) | Shorten a long URL easily and fast | No | Yes |  | Unknown |
| [Driving-Distances](https://www.driving-distances.com/contact.php) | This collection of distance calculators, route planners, and other travel-related calculators, uses... | No | Yes |  | Unknown |
| [DroneDeploy](https://developer.dronedeploy.com/) | Build, grow, and monetize your apps with the full power of DroneDeploy, the world’s largest drone... | `apiKey` | Yes |  | Unknown |
| [Dronestream](https://api.dronestre.am) | DroneStream provides real-time and historical data from the Bureau of Investigative Journalism... | No | Yes |  | Unknown |
| [Droplit.io](https://docs.droplit.io/docs/rest-api-usage-techniques) | Droplit is a provider of infrastructure for connected devices. The Droplit. | No | Yes |  | Unknown |
| [DSA DSLink](https://docs.iot-dsa.org) | DSA (Distributed Services Architecture) offers a communication layer for Internet of Things devices. | No | Yes |  | Unknown |
| [Duck Duck Go](https://api.duckduckgo.com/api) | DuckDuckGo is a search engine which distinguishes itself by not tracking its users or generating... | No | Yes |  | Unknown |
| [Duda Mobile](http://www.dudamobile.com/api-docs.html) | Duda makes multi-screen websites for desktop, tablet and mobile. | No | Yes |  | Unknown |
| [Duda Mobile JavaScript](https://developer.duda.co/docs/getting-started-1) | The Duda Mobile JavaScript API access the interface indirectly to use helper functions and specific... | No | Yes |  | Unknown |
| [Dydra](https://docs.dydra.com/api/rest) | Dydra is a cloud-based RDF store, a database-as-a-service. | No | Yes |  | Unknown |
| [Dynu](https://www.dynu.com/Resources/API/Documentation) | The Dynu REST API gives access to manage hostnames, DNS records, domain registrations, and email... | No | Yes |  | Unknown |
| [EAN-Search](https://www.ean-search.org) | EAN-Search is a product search service where users can type in a European Article Number(EAN) and... | No | Yes |  | Unknown |
| [Earth911 Search](https://api.earth911.com) | Earth911 specializes in providing people across the country with useful and accessible recycling... | No | Yes |  | Unknown |
| [EarthTools](http://new.earthtools.org/webservices.htm) | From their site: EarthTools is a collection of webservices for finding out geographical-related... | No | Yes |  | Unknown |
| [EasyCron](https://www.easycron.com/document) | EasyCron is a tool for scheduling calls to specified URLs by time or time interval. | No | Yes |  | Unknown |
| [EasyDCIM](https://www.easydcim.com/api) | The EasyDCIM API retrieves databases from servers, targeting data centers and colocation management. | No | Yes |  | Unknown |
| [EB-eye Search](https://www.ebi.ac.uk/Tools/webservices/services/eb-eye) | The EB-eye web service is text search engine that indexes the European Bioinformatics Institute... | No | Yes |  | Unknown |
| [eBay Best Match](http://developer.ebay.com/DevZone/best-match-item-details/Concepts/MakingACall.html) | eBay's Best Match API enables developers to understand various factors affecting their eBay search... | No | Yes |  | Unknown |
| [Ebay Buy Marketing](https://ebay.com) | The Marketing API retrieves eBay products based on a metric, such as Best Selling, as well as... | `OAuth` | Yes |  | Unknown |
| [Ebay Feed](https://ebay.com) | The Feed API lets sellers upload input files, download reports and files... | `OAuth` | Yes |  | Unknown |
| [eBay Finding](https://go.developer.ebay.com/developers/ebay/products/finding-api) | eBay's Finding API provides programmatic access to search capabilities on the eBay platform. | No | Yes |  | Unknown |
| [EBI Whatizit](http://www.ebi.ac.uk/webservices/whatizit/helpws.jsp) | Whatizit is a text processing system designed to identify molecular biology terms and link them to... | No | Yes |  | Unknown |
| [EBSCO Discovery Service](https://support.ebsco.com/eit/api.php) | The EBSCO Discovery Service API (EDS) allows developers to access to an institution's collection... | No | Yes |  | Unknown |
| [ECGridOS EDI](https://ecgridos.com/ecgridos-user-guide/) | ECGridOS is the only API-based (over 110 functions) network platform granting complete operational... | No | Yes |  | Unknown |
| [Eclipse Stardust Web Services](https://help.eclipse.org) | Eclipse is a community of collaborators, comprising individuals and organizations, that design... | No | Yes |  | Unknown |
| [ecobee](https://www.ecobee.com/home/developer/api/documentation/v1/auth/auth-intro.shtml) | Ecobee is an energy solutions provider that offers WiFi enabled touch screen thermostats and the... | No | Yes |  | Unknown |
| [Ecometrica Our Impacts](https://ecometrica.com/products/our-impacts) | Ecometrica provides carbon and sustainability tools with the goal of making environmental... | No | Yes |  | Unknown |
| [EdgeX Foundry](https://docs.edgexfoundry.org) | EdgeX Foundry provides an ecosystem for Internet of Things platforms based on open source... | No | Yes |  | Unknown |
| [Edmunds.com Dealer](https://developer.edmunds.com/api-documentation/dealer) | Edmunds has been a publisher of new and used automotive pricing guides to assist automobile buyers... | No | Yes |  | Unknown |
| [eDRV](https://edrv.io) | edrv.io API Documentation | `OAuth` | Yes |  | Unknown |
| [eDRV EV Charging](https://developers.edrv.io) | eDRV helps developers start, stop, reserve and get transaction information from electric vehicle... | No | Yes |  | Unknown |
| [eFax](http://www.efaxdeveloper.com/developer/home) | eFax is an internet fax solution that offers users a large selection of local and toll-free fax... | No | Yes |  | Unknown |
| [el Guille Conversor](https://www.elguille.info/Net/WebServices/CelsiusFahrenheit.asmx) | El Guille is a website offering articles and tutorials on programming with Visual Basic, C#, ASP. | No | Yes |  | Unknown |
| [Elasticsearch](https://www.elastic.co/guide/en/elasticsearch/reference) | Distributed search and analytics engine for all types of data. | `apiKey` | Yes |  | Unknown |
| [ElderCare Locator](http://www.eldercare.gov/Eldercare.NET/Public/Site_Utilities/API_Reg/API_Registration.aspx) | The service from the U.S. Administration on Aging provides lookup against a database of services... | No | Yes |  | Unknown |
| [Elebase](https://elebase.io/learn/api) | Elebase is a back-end service and API that makes it easier to create dynamic web and mobile... | No | Yes |  | Unknown |
| [Electric Imp Build](https://electricimp.com/docs/buildapi) | The Electric Imp Build API is an alternative portal for accessing Electric Imp’s web-based IDE. | No | Yes |  | Unknown |
| [Elemeno](https://docs.elemeno.io) | The Elemeno API is a RESTful service that can be accessed via HTTP with examples for Javascript,... | No | Yes |  | Unknown |
| [Elemeno Webhooks](https://docs.elemeno.io) | This Webhook API is an HTTP POST that occurs when certain events happen in Elemeno. | No | Yes |  | Unknown |
| [Elementool](https://www.elementool.com/docs/index.htm) | Elementool is a provider of web based project management tools for help desk, bug and defect... | No | Yes |  | Unknown |
| [Elev.at](https://elev.at) | Elev.at is a web API that converts legacy/proprietary files such as Text (CSV, tab delimited) and... | No | Yes |  | Unknown |
| [ElevenLabs API Documentation](https://elevenlabs.io) | This is the documentation for the ElevenLabs API. | No | Yes |  | Unknown |
| [elmah.io](https://elmah.io/api/v3/) | Elmah.io is an error tracking service that allows users to log errors in the cloud. | No | Yes |  | Unknown |
| [Elsevier Engineering Village Retrieval](https://dev.elsevier.com/api_docs.html) | The Elsevier Engineering Village Retrieval API is a product of the RELX Group – a provider of... | No | Yes |  | Unknown |
| [Elsevier Engineering Village Search](https://dev.elsevier.com/api_docs.html) | The Elsevier Engineering Village Search API is a product of the RELX Group – a provider of... | No | Yes |  | Unknown |
| [Elvanto](https://elvanto.com/api/getting-started) | Elvanto is a church platform management service that aims to provide all the organizational,... | No | Yes |  | Unknown |
| [Embarcadero Team Server](https://docs.embarcadero.com) | This API is a web-based tool to access, search, edit and manage enterprise metadata. | No | Yes |  | Unknown |
| [Ember](https://ember-energy.org/data/api/) | Ember is a platform that allows users to build and manage web applications. | No | Yes |  | Unknown |
| [Emilia](https://emilia-api.glitch.me) | Emilia enables Discord bots with content including images as buffer streams. | No | Yes |  | Unknown |
| [EnableX Client](https://developer.enablex.io/) | The EnableX API helps you to embed video/voice calls and messaging into any apps and sites. | No | Yes |  | Unknown |
| [Energimolnet](http://app.energimolnet.se) | Energimolnet provides a low cost solution for receiving electricity data and is designed to... | No | Yes |  | Unknown |
| [Engine Yard Core](https://developer.engineyard.com) | Engine Yard offers a platform designed for support and automation of application deployment. | No | Yes |  | Unknown |
| [English Random Words](https://random-words-api.vercel.app/word) | Generate English Random Words with Pronunciation | No | Yes | No | Unknown |
| [Enigma](https://docs.enigma.com/public/public_v20_api_about.html) | Enigma Public is a community platform that brings together thousands of public data sources for... | No | Yes |  | Unknown |
| [Eniro](https://api.eniro.com/documentation) | Eniro is a search directory for businesses and services in the Nordic region of Europe. | No | Yes |  | Unknown |
| [ERCOT MarkeTrak](http://www.ercot.com/services/client_svcs/mktrk_info) | The service from the Electric Reliability Council of Texas (ERCOT) monitors electrical power... | No | Yes |  | Unknown |
| [Ericsson Web Device Connectivity](https://labs.ericsson.com/apis/web-device-connectivity/documentation#Development…) | Ericsson Labs provides a JavaScript library that enables developers to build websites that can... | No | Yes |  | Unknown |
| [ErosNow Partner](https://erosnow.com/developers/api/#api-partner-usage) | The ErosNow Partner API returns data about Bollywood films, music, tracks, original episodes, live... | No | Yes |  | Unknown |
| [Espresso Logic Live](https://www.espressologic.com/features-rest-api) | Live API creates a REST/JSON API to your database tables, views and stored procedures. | No | Yes |  | Unknown |
| [EtMDB](https://etmdb.com/api/docs) | The EtMDB API returns Ethiopian movie metadata which can include biographies, ratings, release... | No | Yes |  | Unknown |
| [EtMDB GraphQL](https://etmdb.com/api) | This is a EtMDB GraphQL service that provides access to data from the EtMDB database. | No | Yes |  | Unknown |
| [ETNA OMS WebSockets](https://wiki.etnasoft.com/display/DOCS/WebSockets+API) | The ETNA WebSockets API allows developers low latency access to streaming data. | No | Yes |  | Unknown |
| [European VAT Number Validation](https://isvat.appspot.com) | The European VAT Number Validation API provides a simple call to help developers validate European... | No | Yes |  | Unknown |
| [Europeana Record](https://pro.europeana.eu/resources/apis/record) | The Europeana Record API supports JSON, JSON-LD, RDF, and XML formats to return data with subgraphs... | No | Yes |  | Unknown |
| [Event Registry](https://eventregistry.org/documentation) | The Event Registry API allows developers to access and integrate the functionality of Event... | No | Yes |  | Unknown |
| [Everlive](https://docs.telerik.com/platform/backend-services/development/rest-api/content/create-items) | Everlive is a set of cloud-based backend services for building and managing mobile apps. | No | Yes |  | Unknown |
| [Evernote](https://dev.evernote.com/doc/reference) | Evernote makes it easy to remember things big and small from your notable life using your computer,... | No | Yes |  | Unknown |
| [Everything Fonts](https://everythingfonts.com/fonts/convert/api) | EverythingFonts provides a font conversion tool, a directory of fonts, a font marketplace for... | No | Yes |  | Unknown |
| [Everything Fonts font-face generation](https://font.rest) | The Everything Fonts font-face generation API returns data with online fonts that developers can... | No | Yes |  | Unknown |
| [Evetech EVE Swagger Interface](https://evetech.net) | An OpenAPI for EVE Online | `OAuth` | Yes |  | Unknown |
| [ExaVault](https://exavault.com) | ExaVaults API allows you to incorporate ExaVaults suite of file transfer and user management tools... | No | Yes |  | Unknown |
| [Exciting Printer](https://github.com/exciting-io/printer/wiki/API) | Exciting is a studio that develops a variety of digital projects. | No | Yes |  | Unknown |
| [ExpertRec Requesting Recommendations Data](https://www.expertrec.com/api/#api-reqRecData) | The ExpertRec Requesting Recommendations Data API allows developers to get various types of... | No | Yes |  | Unknown |
| [ExpertRec Requesting Search Data](https://www.expertrec.com/api/#api-reqSearch) | The ExpertRec Requesting Search Data API allows developers to get search data, including the number... | No | Yes |  | Unknown |
| [ExpertRec Tracking Events](https://www.expertrec.com/api/#api-track) | The ExpertRec Tracking Events API collects user interactions with an item and sends them to an... | No | Yes |  | Unknown |
| [Exponent](https://docs.getexponent.com/versions/v12.0.0/sdk/index.html) | The Exponent API provides mobile application development, providing indirect access via SDKs. | No | Yes |  | Unknown |
| [ExtendsClass JSON Storage](https://extendsclass.com/json-storage.html) | A simple JSON store API | No | Yes | Yes | Free |
| [Exversion](https://www.exversion.com/api) | Exversion is a data platform that crawls and indexes the world’s open data and makes it... | No | Yes |  | Unknown |
| [ezeep](https://apidocs.ezeep.com/ezeepblue/README.html) | Ezeep is a Cloud-Managed Printing services that allows users to integrate their print... | No | Yes |  | Unknown |
| [F5](https://devcentral.f5.com/icontrol/getting-started) | F5 is an IT company that improves network security. | No | Yes |  | Unknown |
| [f6s Mobile Data](https://www.f6s.com/docs) | This API lets you access the F6S data about mobile apps. | No | Yes |  | Unknown |
| [Fabman](https://github.com/FabmanHQ/fabman-api) | The Fabman API returns shared space data for hardware projects, makers, and doers. | No | Yes |  | Unknown |
| [Face++](https://www.faceplusplus.com) | Face++ is a facial recognition and detection service that provides detection, recognition and... | No | Yes |  | Unknown |
| [Factolex](http://api.factolex.com) | Availiable in English or German, Factolex is a community-powered fact repository where users can... | No | Yes |  | Unknown |
| [Factory Four](https://www.factoryfour.com/iom.html) | The Factory Four API allows developers to access and integrate the functionality of Factory Four... | No | Yes |  | Unknown |
| [Factual v3](http://developer.factual.com/api-docs) | Factual is an open data platform for application developers that leverages large-scale data... | No | Yes |  | Unknown |
| [Fake Name Generator](http://www.fakenamegenerator.com/api.php) | With 27 languages and 22 countries, the Fake Name Generator is the most advanced name generator on... | No | Yes |  | Unknown |
| [FakeJSON](https://fakejson.com) | Service to generate test and fake data | `apiKey` | Yes | Yes | Unknown |
| [Family Tree Maker](https://service.familytreemaker.com/ohanaservice/SearchService.asmx) | The service, associated with Ancestry.com, provides search results against the provider's database... | No | Yes |  | Unknown |
| [FamilySearch](https://familysearch.org/developers/docs/api/resources) | FamilySearch is an online service that allows users to search for family records by names and life... | No | Yes |  | Unknown |
| [FAOdata](http://api.data.fao.org/1.0/esb-rest/groups.html) | The mission of the Food and Agriculture Organization of the United Nations (FAO) is to ensure that... | No | Yes |  | Unknown |
| [FarmSense](http://www.farmsense.net/api) | FarmSense creates digital tools for DIY farmers, delivered via API. | No | Yes |  | Unknown |
| [FatFractal](https://fatfractal.com/docs/reference/api) | FatFractal is a application backend service. | No | Yes |  | Unknown |
| [FaunaDB GraphQL](https://docs.fauna.com) | The FaunaDB GraphQL API is a database service for defining schemas and executing queries and... | No | Yes |  | Unknown |
| [Feinsearch](http://www.feinsearch.com/CorporateFeatures.aspx) | The service provides lookup access to a database of employer identification numbers (EINs) and... | No | Yes |  | Unknown |
| [Fencer](https://fencer.io/developers) | The Fencer API is a geofence web service for mobile apps, web apps, and IoT. | No | Yes |  | Unknown |
| [FengShui](https://fengshui-api.com) | The Free FengShui REST API allows to integrate compatibility properties into own applications. | No | Yes |  | Unknown |
| [Fieldbook](https://fieldbook.com/developers) | The Fieldbook API provides developers access to tools that can assist with reading and writing... | No | Yes |  | Unknown |
| [Figma Web](https://www.figma.com/developers/docs) | The Figma Web API allows developers to connect their apps, websites, and internal tools directly to... | No | Yes |  | Unknown |
| [Figshare](https://figshare.com) | Figshare apiv2. Using Swagger 2.0 | `OAuth` | Yes |  | Unknown |
| [FileMaker Data](https://fmhelp.filemaker.com/docs/16/en/restapi) | The FileMaker API in REST architecture returns data in hosted solutions to create applications,... | No | Yes |  | Unknown |
| [Files.com](https://files.com) | Files.com API API | `apiKey` | Yes |  | Unknown |
| [FilesTube](http://api.filestube.com) | From their site: This API helps you put FilesTube Search in your web pages. FilesTube. | No | Yes |  | Unknown |
| [FillAnyPDF](https://fillanypdf.wikidot.com/wiki:rest) | FillAnyPDF is a form-filling service. It helps users take information from disparate sources and... | No | Yes |  | Unknown |
| [Find That File](http://www.findthatfile.com/services.php) | Find That File searches the web by file type, returning only results for the audio, video, or other... | No | Yes |  | Unknown |
| [FindAA](http://findaa.org/Home/Api) | FindAA is an unofficial, searchable directory of Alcoholics Anonymous meeting information. | No | Yes |  | Unknown |
| [FindMaven REST](http://www.findmaven.net/jsp/api/api_en.jsp) | FindMaven allows users to find Maven dependency trees, Jar sources, JavaDocs, Jar structures, and... | No | Yes |  | Unknown |
| [FINN – Banking of Things](https://makethingsfinn.com/developers) | FINN enables autonomous IoT payments on behalf of the user in smart devices. | No | Yes |  | Unknown |
| [FiveFilters.org](https://fivefilters.org/content-only) | This is a content extraction service to help people extract and read full-text web content. | No | Yes |  | Unknown |
| [Flapit](https://www.flapit.com/en/api.html) | The Flapit REST API allows you to control a Flapit counting device by directly specifying the... | No | Yes |  | Unknown |
| [FlatTurtle Reservations](https://reservations.flatturtle.com) | FlatTurtle provides digital signage that visualizes location-based data for office buildings,... | No | Yes |  | Unknown |
| [Flickr API Schema](https://flickr.com) | A subset of Flickr's API defined in Swagger format. | No | Yes |  | Unknown |
| [FlightsLogic Flight](https://flightslogic.com/fareapi.php) | The FlightsLogic Flight API adds flight search features to third-party applications. | No | Yes |  | Unknown |
| [Floorplanner](http://dev.floorplanner.com/doku.php?id=rest-api) | The service provides online tools for creating building layouts and floorplans then sharing those... | No | Yes |  | Unknown |
| [FluidSurveys](http://app.fluidsurveys.com/api/surveys) | FluidSurveys provides tools to easily create online surveys. | No | Yes |  | Unknown |
| [Flukso](https://www.flukso.net/content/jsonrest-api-released) | Flukso is a web-based community metering application. | No | Yes |  | Unknown |
| [Fly](https://fly.io/docs) | Fly is an Application Delivery Network (ADN) that is designed to accelerate the dynamic delivery of... | No | Yes |  | Unknown |
| [flydubai OTA Integration Flow](https://developer.flydubai.com/api-reference) | The flydubai OTA Integration Flow API provides a way to build customer search and booking functions... | No | Yes |  | Unknown |
| [Fog Creek Kiln](https://developers.fogbugz.com/default.asp?W156) | The provider offers a complete read/write API for interacting with Mercurial repositories hosted by... | No | Yes |  | Unknown |
| [Follow Up Boss](https://docs.followupboss.com/reference) | Follow Up Boss is a real estate lead tracking and gathering interface, compatible with common... | No | Yes |  | Unknown |
| [Fono](https://github.com/shakee93/fonoapi) | The Fono API returns JSON data about mobile device descriptions, including model brand, processor,... | No | Yes |  | Unknown |
| [Font](https://everythingfonts.com/api/font) | The Font API access font and glyph level details using REST protocol. | No | Yes |  | Unknown |
| [Font Conversion](https://everythingfonts.com/api/convert) | This RESTful API converts text from one format to another. | No | Yes |  | Unknown |
| [Font Hinting](https://everythingfonts.com/api/hinting) | The Font Hinting API supports binary and URI Query String/CRUD as requests and binary and JSON as... | No | Yes |  | Unknown |
| [Food Security Data](http://www.foodsecurityportal.org/api/documentation) | The Food Security Data API provides means for downloading data and charts from FoodSecurityPortal. | No | Yes |  | Unknown |
| [FORCE Bridge](https://docs.forcebridge.io/api) | FORCE Bridge API is the Open API for Smart Manufacturing. | No | Yes |  | Unknown |
| [Form Creation API](https://apyhub.com/utility/reformify-form-api) | Create and manage customizable forms within your applications | `apiKey` | Yes | Yes | Free |
| [FormAssembly](https://github.com/veerwest/formassembly-api) | FormAssembly is a form management service that allows users to create online forms and to manage... | No | Yes |  | Unknown |
| [Format JSON Online Dummy](https://formatjsononline.com/dummy-api) | – A free tool to generate dummy JSON data for testing and prototyping. | No | Yes | Yes | Free |
| [Formhub](https://github.com/SEL-Columbia/formhub/wiki/Formhub-Access-Points-(API)) | Formhub is an open source service that allows people to create and distribute mobile data forms to... | No | Yes |  | Unknown |
| [Forte Group](https://restdocs.forte.net/) | The Forte Group provides solutions for IT management. | No | Yes |  | Unknown |
| [FoundationDB](https://apple.github.io/foundationdb/api-reference.html) | FoundationDB is a NoSQL database. It is uniquely scalable and provides multiple important and... | No | Yes |  | Unknown |
| [Foundry Technologies Relay](https://blog.foundrytechnologies.com/relay-api-v1-0-is-now-live) | The Foundry Technologies Relay API is used to pass messages to registered Relay devices. | No | Yes |  | Unknown |
| [FunTranslations](http://funtranslations.com/) | Funtranslations API gives access to the full set of translations available at funtranslations. | `apiKey` | No |  | Unknown |
| [FunTranslations Braille](https://funtranslations.com/api/braille) | Braille conversion API on the cloud. Translate from English text to Braille and get Braille results... | `apiKey` | Yes |  | Unknown |
| [FXCM Socket REST](https://apiwiki.fxcorporate.com/api/RestAPI/Socket%20REST%20API%20Specs.pdf) | The FXCM Socket REST service is a web-based API using a Websocket connection. | No | Yes |  | Unknown |
| [GA4GH Genomics](https://ga4gh.org/#/api) | The Genomic Data Working Group is a coalition assembled to create interoperability standards for... | No | Yes |  | Unknown |
| [GardenKit](https://docs.google.com/document/d/16irr_OQ_cuxmZVxaUts4lzFzXOst3IFDRDp3eTYtwrg/edit) | GreenIQ's GardenKit API provides access to their product, Smart Garden Hub. | No | Yes |  | Unknown |
| [Gcore CDN](https://docs.gcore.com/cdn) | Make your app fast and responsive for a global audience with Gcore CDN. | `apiKey` | Yes | Yes | Free |
| [Gcore Cloud](https://docs.gcore.com/cloud) | Scalable, secure, and reliable hybrid cloud services anywhere in the world. | `apiKey` | Yes | Yes | Free |
| [Gcore DNS](https://docs.gcore.com/dns) | Fast and resilient DNS hosting service by Gcore. | `apiKey` | Yes | Yes | Free |
| [GDELT TV 2.0 AI](https://blog.gdeltproject.org/gdelt-2-0-television-api-debuts) | The GDELT Television API uses computer vision via the Google Cloud Video API and the Google Cloud... | No | Yes |  | Unknown |
| [GeekFlare](https://apidocs.geekflare.com/docs/geekflare-api) | Provide numerous capabilities for important testing and monitoring methods for websites | `apiKey` | Yes |  | Unknown |
| [Genderize.io](https://genderize.io) | Estimates a gender from a first name | No | Yes | Yes | Free |
| [Generate Full Webpage Screenshot](https://apyhub.com/utility/generate-webpage-screenshot) | Dynamically capture full page screenshots of websites. | `apiKey` | Yes | Yes | Free |
| [Genesys Calendar Service](https://docs.genesys.com/Documentation/GMS/latest/API/CalendarServiceAPI) | The Genesys Calendar Service API queries office hours to make alternatives to users based on... | No | Yes |  | Unknown |
| [Genesys Callback Services](https://developer.genesys.cloud/platform/) | The Genesys Callback Services API allows adding a callback service, defining a service name. | No | Yes |  | Unknown |
| [Genesys GME Chat](https://docs.genesys.com/Documentation/GMS/8.5.1/API/ChatAPIVersion1) | The Genesys GME Chat API allows to configure chat immediate and chat delayed services. | No | Yes |  | Unknown |
| [Genesys Notification](https://docs.genesys.com/Documentation/GMS/latest/API/NotificationAPI) | The Genesys Notification API manages notifications between apps and Genesys systems, once consumers... | No | Yes |  | Unknown |
| [Genesys Pattern Matcher](https://docs.genesys.com/Documentation/GMS/latest/API/PatternMatcherAPI) | The Genesys Pattern Matcher API enables the creation and management of pattern lists, checking... | No | Yes |  | Unknown |
| [Genesys Phone Number Validation](https://docs.genesys.com/Documentation/GMS/latest/API/PhoneNumberValidationAPI) | The Genesys Phone Number Validation API parses, formats, and validates international phone numbers. | No | Yes |  | Unknown |
| [Genesys Storage](https://developer.genesys.cloud/platform/) | The Genesys Storage API allows to temporarily store arbitrary data. | No | Yes |  | Unknown |
| [Genesys Web Chat](https://docs.genesys.com/Documentation/GMS/8.5.1/API/ChatAPIv2) | The Genesys Web Chat API returns chat data to request chat, send message, type, refresh chat,... | No | Yes |  | Unknown |
| [GenMyModel](https://api.genmymodel.com/doc) | GenMyModel can be used to create Unified Language Modeling (UML) diagrams and flowcharts for use in... | No | Yes |  | Unknown |
| [geoPlugin IP Geolocation JavaScript](https://www.geoplugin.com/webservices/javascript) | This API is indirect access to geoplugin.com. Please refer to the corresponding SDK below. | No | Yes |  | Unknown |
| [GeoRanker](http://apidocs.georanker.com) | GeoRanker enables users to view search engines' SERPs (Search Engine Result Pages) as a local user... | No | Yes |  | Unknown |
| [Geosys Bridge](https://www.geosys.com/bridge-form) | The Geosys API provides programmatic access to Geosys remote sensing data processing tools. | No | Yes |  | Unknown |
| [GetData.IO DataExport](https://getdata.io/docs) | The DataExport API allows you to use the data in your own application. Getdata. | No | Yes |  | Unknown |
| [GETPing](https://www.getping.info) | Trigger an email notification with a simple GET request | `apiKey` | Yes |  | Free |
| [Ghent University Academic Bibliography](https://biblio.ugent.be/doc/api) | The Ghent University Academic Bibliography provides the ability to search over 200 years of... | No | Yes |  | Unknown |
| [Ghost](https://ghost.org/) | Get Published content into your Website, App or other embedded media | `apiKey` | Yes | Yes | Free |
| [Ghost Content](https://docs.ghost.org/api/content) | Ghost is a collaborative publishing and blogging platform. | No | Yes |  | Unknown |
| [GHTorrent](https://ghtorrent.org/docs.html) | The GHTorrent API is a project based service for developers that is working to make the GitHub REST... | No | Yes |  | Unknown |
| [Giant Swarm](https://docs.giantswarm.io/api/#section/Source) | Giant Swarm provides a fully-managed Kubernetes cluster, which can be used to deploy containers as... | No | Yes |  | Unknown |
| [Giphy](https://giphy.com) | Giphy API | `apiKey` | Yes |  | Unknown |
| [Gisgraphy](https://www.gisgraphy.com/documentation/user-guide.php) | The Gisgraphy API is an open-source geolocalisation and geocoding interface that returns data in... | No | Yes |  | Unknown |
| [Git.io](https://github.blog/2011-11-10-git-io-github-url-shortener/) | Git.io URL shortener | No | Yes |  | Unknown |
| [Gitea API.](https://gitea.io) | This documentation describes the Gitea API. | `apiKey` | Yes |  | Unknown |
| [GitHub](https://docs.github.com/en/free-pro-team@latest/rest) | Make use of GitHub repositories, code and user info programmatically | `OAuth` | Yes | Yes | Free |
| [GitHub Activity Feeds](https://docs.github.com/en/rest/activity/feeds) | The GitHub Activity Feeds API allows developers to integrate the GitHub feeds database into their... | No | Yes |  | Unknown |
| [GitHub Activity Notifications](https://developer.github.com/v3/activity/notifications) | The GitHub Activity Notifications API allows developers to integrate the GitHub activity... | No | Yes |  | Unknown |
| [GitHub Content Attachments](https://developer.github.com/apps/using-content-attachments) | This GitHub Content Attachments service allows a GitHub Application to provide more information in... | No | Yes |  | Unknown |
| [GitHub Gists](https://docs.github.com/en/rest/gists/gists) | The GitHub GitHub Gists API allows developers to integrate the Github file sharing services into... | No | Yes |  | Unknown |
| [GitHub Gists Comments](https://developer.github.com/v3/gists/comments) | The GitHub Gists Comments API allows developers to integrate the GitHub gists comments feature into... | No | Yes |  | Unknown |
| [GitHub Git Data](https://developer.github.com/v3/git) | The GitHub Git Data API allows developers to integrate the Git Database services into their... | No | Yes |  | Unknown |
| [Github GraphQL](https://developer.github.com/v4/guides/intro-to-graphql) | The Github GraphQL API allows developers to request information from Github which matches the... | No | Yes |  | Unknown |
| [GitHub Issue Milestones](https://developer.github.com/v3/issues/milestones) | The GitHub Issue Milestones API allows developers to integrate the GitHub milestone service into... | No | Yes |  | Unknown |
| [GitHub Issues](https://docs.github.com/en/rest/issues/issues) | The GitHub Issues API allows developers to integrate the GitHub activity events services into their... | No | Yes |  | Unknown |
| [GitHub Licenses](https://developer.github.com/v3/licenses) | The GitHub Licenses API returns metadata about popular open source licenses and information about a... | No | Yes |  | Unknown |
| [GitHub Projects](https://developer.github.com/v3/repos/projects) | The Projects API allows developers to modify, update, and create repository information within the... | No | Yes |  | Unknown |
| [GitHub Pull Requests](https://developer.github.com/v3/pulls) | The GitHub Pull Requests API allows developers to integrate the GitHub pull Request service into... | No | Yes |  | Unknown |
| [GitHub Pull Requests Review Comments](https://developer.github.com/v3/pulls/comments) | The GitHub Pull Requests Review Comments API allows developers to get access to comments on a pull... | No | Yes |  | Unknown |
| [GitHub Search](https://docs.github.com/en/rest/search) | GitHub's Search API allows you to search GitHub for any specific item you're looking for (users,... | No | Yes |  | Unknown |
| [GitHub User Followers](https://developer.github.com/v3/users/followers) | The GitHub User Followers API allows developers to list followers of a user, and list users... | No | Yes |  | Unknown |
| [GitHub Users](https://developer.github.com/v3/users) | The GitHub Users API provides developers with shortcut for getting information about the currently... | No | Yes |  | Unknown |
| [Gitlab](https://docs.gitlab.com/ee/api/) | Automate GitLab interaction programmatically | `OAuth` | Yes |  | Free |
| [Gitter](https://developer.gitter.im/docs/welcome) | Chat for Developers | `OAuth` | Yes |  | Unknown |
| [Glitterly](https://developers.glitterly.app) | Image generation API | `apiKey` | Yes | Yes | Free |
| [Global Wine Score](https://globalwinescore.docs.apiary.io) | Global Wine Score is designed as a REST API for multiple clients : you can use it for your web app... | No | Yes |  | Unknown |
| [GlobalSign Certificate Inventory](https://downloads.globalsign.com/acton/media/2674/inventory-api) | The GlobalSign Certificate Inventory API connects to the Online Certificate Status Protocol (OCSP)... | No | Yes |  | Unknown |
| [GlobalSign IoT CA Direct](https://downloads.globalsign.com/acton/media/2674/hvca-api-documentation-v2) | GlobalSign's IoT CA Direct API let's customers integrate to its IoT Identity Platform and connect... | No | Yes |  | Unknown |
| [gnTEAM Full Text](http://gnode1.mib.man.ac.uk/index.html) | The Full Text Web Services are a collection of text editing and bioinformatics data retrieval APIs... | No | Yes |  | Unknown |
| [Good Technology Good Dynamics Shared Service Framework](https://www1.good.com/good-dynamics-platform/shared-services.html) | The Good Dynamics Shared Services Framework is a set of APIs that allows applications on the same... | No | Yes |  | Unknown |
| [Google Abusive Experience Report](https://google.com) | Views Abusive Experience Report data, and gets a list of sites that have a significant number of... | No | Yes |  | Unknown |
| [Google Accelerated Mobile Pages Cache](https://developers.google.com/amp/cache) | The Google Accelerated Mobile Pages Cache API retrieves a list of AMP URLs for a given list of... | No | Yes |  | Unknown |
| [Google Activity Recognition](https://developers.google.com/products/develop) | The Google Activity Recognition API will enable you to detect users' activity using low power... | No | Yes |  | Unknown |
| [Google Ad Exchange Buyer](https://developers.google.com/authorized-buyers/apis/reference/rest) | The Ad Exchange Buyer REST API allows applications to access and update account information, to... | No | Yes |  | Unknown |
| [Google Ad Experience Report](https://google.com) | Views Ad Experience Report data, and gets a list of sites that have a significant number of... | No | Yes |  | Unknown |
| [Google Admin SDK Directory](https://developers.google.com/admin-sdk/directory) | The Google Admin SDK Directory API allows you to perform administrative operations on users,... | No | Yes |  | Unknown |
| [Google AdMob](https://google.com) | The AdMob API allows publishers to programmatically get information about their AdMob account. | `OAuth` | Yes |  | Unknown |
| [Google Analytics Admin](https://google.com) | Google Analytics Admin API API | `OAuth` | Yes |  | Unknown |
| [Google Android Device Provisioning Partner](https://google.com) | Automates Android zero-touch enrollment for device resellers, customers, and EMMs. | No | Yes |  | Unknown |
| [Google API Keys](https://google.com) | Manages the API keys associated with developer projects. | `OAuth` | Yes |  | Unknown |
| [Google App Engine](https://developers.google.com/appengine) | [This API is no longer available. Its functions have been split among the following APIs: Google... | No | Yes |  | Unknown |
| [Google App Engine Admin](https://google.com) | Provisions and manages developers' App Engine applications. | `OAuth` | Yes |  | Unknown |
| [Google App Engine Admin](https://cloud.google.com/appengine) | The Google App Engine Admin API allows developers to provision and manage their App Engine... | No | Yes |  | Unknown |
| [Google App Engine Admin RPC](https://cloud.google.com/appengine/docs/admin-api) | This RPC platform is for building scalable web applications and mobile backends. | No | Yes |  | Unknown |
| [Google App Engine Task Queue](https://cloud.google.com/appengine/docs/python/taskqueue/rest) | The Google App Engine Task Queue API allows applications to execute background work by creating... | No | Yes |  | Unknown |
| [Google Application Integration](https://google.com) | Application Integration API API | `OAuth` | Yes |  | Unknown |
| [Google Apps Script](https://google.com) | Manages and executes Google Apps Script projects. | `OAuth` | Yes |  | Unknown |
| [Google Apps Script](https://developers.google.com/apps-script) | The Google Apps Script API allows you to use JavaScript to interact with various Google products... | No | Yes |  | Unknown |
| [Google Apps Script Execution](https://developers.google.com/apps-script/execution/rest/v1/scripts) | Google Apps Script Execution is an automation API that lets developers use JavaScript to interact... | No | Yes |  | Unknown |
| [Google BigQuery](https://developers.google.com/bigquery/what-is-bigquery) | The Google BigQuery service allows users to run SQL-like queries against very large datasets, with... | No | Yes |  | Unknown |
| [Google Blogger](https://developers.google.com/blogger) | The Google Blogger API allows client applications to view and update Blogger content. | No | Yes |  | Unknown |
| [Google Book Search Book Viewability](https://developers.google.com/books) | The Google Book Search Book Viewability API enables developers to: Link to Books in Google Book... | No | Yes |  | Unknown |
| [Google Books](https://google.com) | The Google Books API allows clients to access the Google Books repository. | `OAuth` | Yes |  | Unknown |
| [Google Calendar](https://google.com) | Manipulates events and other calendar data. | `OAuth` | Yes |  | Unknown |
| [Google Classroom](https://google.com) | Manages classes, rosters, and invitations in Google Classroom. | `OAuth` | Yes |  | Unknown |
| [Google Closure Compiler](https://developers.google.com/closure/compiler/docs/overview) | The Closure Compiler is a tool for optimizing JavaScript. | No | Yes |  | Unknown |
| [Google Cloud App Engine Admin REST](https://cloud.google.com/appengine/docs/admin-api) | This is a platform for building scalable web applications and mobile backends. | No | Yes |  | Unknown |
| [Google Cloud App Engine Tasks](https://cloud.google.com/docs) | The Google Cloud App Engine API Task resource represents a single task to be handled by a client. | No | Yes |  | Unknown |
| [Google Cloud Data Catalog](https://google.com) | A fully managed and highly scalable data discovery and metadata management service. | `OAuth` | Yes |  | Unknown |
| [Google Cloud Dataproc](https://google.com) | Manages Hadoop-based clusters and jobs on Google Cloud Platform. | `OAuth` | Yes |  | Unknown |
| [Google Cloud Deployment Manager V2](https://google.com) | The Google Cloud Deployment Manager v2 API provides services for configuring, deploying, and... | `OAuth` | Yes |  | Unknown |
| [Google Cloud Identity](https://google.com) | API for provisioning and managing identity resources. | `OAuth` | Yes |  | Unknown |
| [Google Cloud Logging](https://google.com) | Writes log entries and manages your Cloud Logging configuration. | `OAuth` | Yes |  | Unknown |
| [Google Cloud Monitoring](https://google.com) | Manages your Cloud Monitoring data and configurations. | `OAuth` | Yes |  | Unknown |
| [Google Cloud Natural Language RPC](https://cloud.google.com/docs) | Google Cloud Natural Language API provides natural language understanding technologies to... | No | Yes |  | Unknown |
| [Google Cloud Resource Manager](https://google.com) | Creates, reads, and updates metadata for Google Cloud Platform resource containers. | `OAuth` | Yes |  | Unknown |
| [Google Cloud Runtime Configuration](https://cloud.google.com/deployment-manager/runtime-configurator/reference/rest) | The Google Cloud Runtime Configuration API allows you to dynamically configure and expose variables... | No | Yes |  | Unknown |
| [Google Cloud Spanner](https://cloud.google.com/spanner/docs) | The Google Cloud Spanner API is a scalable, enterprise-grade, globally-distributed, relational... | No | Yes |  | Unknown |
| [Google Cloud Spanner gRPC](https://cloud.google.com/spanner/docs) | The Google Cloud Spanner RPC API is a scalable, enterprise-grade, globally-distributed, relational... | No | Yes |  | Unknown |
| [Google Cloud SQL](https://developers.google.com/cloud-sql/docs/admin-api) | Google Cloud SQL provides a cloud-based MySQL database that is recommended for small- and... | No | Yes |  | Unknown |
| [Google Cloud SQL Admin](https://google.com) | API for Cloud SQL database instance management | `OAuth` | Yes |  | Unknown |
| [Google Cloud Storage JSON](https://google.com) | Stores and retrieves potentially large, immutable data objects. | `OAuth` | Yes |  | Unknown |
| [Google Cloud Support](https://google.com) | Manages Google Cloud technical support cases for Customer Care support offerings. | `OAuth` | Yes |  | Unknown |
| [Google Cloud Tool Results](https://google.com) | API to publish and access results from developer tools. | `OAuth` | Yes |  | Unknown |
| [Google Container Engine](https://cloud.google.com/container-engine/docs/v1beta1) | The Google Container Engine API allows users to develop and manage containers on distributed... | No | Yes |  | Unknown |
| [Google Custom Search](https://google.com) | Searches over a website or collection of websites | No | Yes |  | Unknown |
| [Google Custom Search](https://developers.google.com/custom-search/json-api/v1/overview) | The Google Custom Search Engine API is a RESTful API that allows developer to get web or image... | No | Yes |  | Unknown |
| [Google Dataflow](https://google.com) | Manages Google Cloud Dataflow projects on Google Cloud Platform. | `OAuth` | Yes |  | Unknown |
| [Google Digital Asset Links](https://google.com) | Discovers relationships between online assets such as websites or mobile apps. | No | Yes |  | Unknown |
| [Google Discovery Service](https://developers.google.com/discovery/v1/getting_started) | The Google Discovery Service API provides a way to build client libraries, IDE plugins, and other... | No | Yes |  | Unknown |
| [Google Docs](https://google.com) | Reads and writes Google Docs documents. | `OAuth` | Yes |  | Unknown |
| [Google Docs](https://developers.google.com/docs/api/reference/rest) | API to read, write, and format Google Docs documents | `OAuth` | Yes |  | Free |
| [Google Drive](https://google.com) | Manages files in Drive including uploading, downloading, searching, detecting changes, and updating... | `OAuth` | Yes |  | Unknown |
| [Google Drive Labels](https://google.com) | An API for managing Drive Labels | No | Yes |  | Unknown |
| [Google Fact Check Tools](https://google.com) | Fact Check Tools API API | `OAuth` | Yes |  | Unknown |
| [Google FactCheck Claim Search](https://developers.google.com/fact-check/tools/api/reference/rest/v1alpha1/pages) | The Google FactCheck Claim Search API checks the validity of information published for the web. | No | Yes |  | Unknown |
| [Google Firebase](https://firebase.google.com/docs) | Google's mobile application development platform that helps build, improve, and grow app | `apiKey` | Yes | Yes | Free |
| [Google Firebase APP Indexing](https://firebase.google.com/docs/reference) | The Google Firebase APP Indexing API supports the introduction and visibility of apps in Google... | No | Yes |  | Unknown |
| [Google Firebase Dynamic Links](https://google.com) | Programmatically creates and manages Firebase Dynamic Links. | `OAuth` | Yes |  | Unknown |
| [Google Firebase Management](https://google.com) | The Firebase Management API enables programmatic setup and management of Firebase projects,... | `OAuth` | Yes |  | Unknown |
| [Google Firebase ML Kit](https://developers.google.com/ml-kit) | This is indirect access to this service, please refer to the corresponding SDK below. | No | Yes |  | Unknown |
| [Google Fonts](https://developers.google.com/fonts/docs/developer_api) | Metadata for all families served by Google Fonts | `apiKey` | Yes |  | Free |
| [Google Forms](https://google.com) | Reads and writes Google Forms and responses. | `OAuth` | Yes |  | Unknown |
| [Google G Suite Admin SDK Reports](https://developers.google.com/admin-sdk/reports/v1/reference) | The Google Admin SDK Reports API provides an activity reports list with dated information for... | No | Yes |  | Unknown |
| [Google G Suite Admin SDK Reseller](https://developers.google.com/admin-sdk) | The Google G Suite Admin SDK Reseller API allows you to place customer orders and manage G Suite... | No | Yes |  | Unknown |
| [Google Identity and Access Management](https://docs.cloud.google.com/iam/docs/reference/rest) | The Google Identity and Access Management API manages identity and access control for Google Cloud... | No | Yes |  | Unknown |
| [Google Indexing](https://google.com) | Notifies Google when your web pages change. | `OAuth` | Yes |  | Unknown |
| [Google Keep](https://developers.google.com/keep/api/reference/rest) | API to read, write, and format Google Keep notes | `OAuth` | Yes |  | Free |
| [Google Knowledge Graph Search](https://google.com) | Searches the Google Knowledge Graph for entities. | No | Yes |  | Unknown |
| [Google Knowledge Graph Search](https://developers.google.com/knowledge-graph) | The Google Knowledge Graph Search API is a tool that helps users find entities within the Google... | No | Yes |  | Unknown |
| [Google Kubernetes](https://cloud.google.com/kubernetes-engine/docs/reference/rest) | Kubernetes is a container cluster manager made by Google that is optimized for Google Cloud... | No | Yes |  | Unknown |
| [Google Library Agent](https://google.com) | A simple Google Example Library API. | `OAuth` | Yes |  | Unknown |
| [Google Local Services](https://google.com) | Local Services API API | `OAuth` | Yes |  | Unknown |
| [Google Open Spherical Camera](https://developers.google.com/open-spherical-camera) | The Google Open Spherical Camera API is a proposed set of commands for controlling spherical... | No | Yes |  | Unknown |
| [Google People](https://google.com) | Provides access to information about profiles and contacts. | `OAuth` | Yes |  | Unknown |
| [Google Play Android Developer](https://google.com) | Lets Android application developers access their Google Play accounts. | `OAuth` | Yes |  | Unknown |
| [Google SAS Portal](https://google.com) | SAS Portal API API | `OAuth` | Yes |  | Unknown |
| [Google Search Ads 360](https://google.com) | The Search Ads 360 API allows developers to automate uploading conversions and downloading reports... | `OAuth` | Yes |  | Unknown |
| [Google Search Ads 360 Reporting](https://google.com) | The Search Ads 360 API allows developers to automate downloading reports from Search Ads 360. | `OAuth` | Yes |  | Unknown |
| [Google Search Analytics](https://developers.google.com/webmaster-tools/v3/searchanalytics) | The Google Search Analytics API allows developers to query their search traffic data with filters... | No | Yes |  | Unknown |
| [Google Search Console](https://google.com) | The Search Console API provides access to both Search Console data (verified users only) and to... | `OAuth` | Yes |  | Unknown |
| [Google Search Console URL Testing Tool](https://developers.google.com/webmaster-tools/search-console-api/about) | The Google Search Console URL Testing Tool REST API allows developers to access and integrate the... | No | Yes |  | Unknown |
| [Google Search Indexing](https://developers.google.com/search) | The Google Indexing API provides a way to submit a limited number of URLs to crawl and index. | No | Yes |  | Unknown |
| [Google Search Indexing RPC](https://developers.google.com/search) | The Google Indexing RPC API allows developers to Get Url notification metadata, notifications that... | No | Yes |  | Unknown |
| [Google Service Consumer Management](https://cloud.google.com/docs) | The Service Consumer Management API provides management methods for configuring service producer... | No | Yes |  | Unknown |
| [Google Service Control](https://cloud.google.com/service-infrastructure/docs/service-control/reference/rest) | The Google Service Control API provides control plane functionality to managed services, such as... | No | Yes |  | Unknown |
| [Google Service Management](https://google.com) | Google Service Management allows service producers to publish their services on Google Cloud... | `OAuth` | Yes |  | Unknown |
| [Google Service Management](https://cloud.google.com/service-management/overview) | The Google Service Management API allows service producers to publish their services on Google... | No | Yes |  | Unknown |
| [Google Service Usage](https://google.com) | Enables services that service consumers want to use on Google Cloud Platform, lists the available... | `OAuth` | Yes |  | Unknown |
| [Google Sheets](https://developers.google.com/sheets/api/reference/rest) | API to read, write, and format Google Sheets data | `OAuth` | Yes |  | Free |
| [Google Sheets](https://google.com) | Reads and writes Google Sheets. | `OAuth` | Yes |  | Unknown |
| [Google Sites](https://developers.google.com/google-apps/sites) | The Google Sites Data API lets developers access, publish, and modify content within a Google Site. | No | Yes |  | Unknown |
| [Google Slides](https://developers.google.com/slides/api/reference/rest) | API to read, write, and format Google Slides presentations | `OAuth` | Yes |  | Free |
| [Google Slides](https://google.com) | Reads and writes Google Slides presentations. | `OAuth` | Yes |  | Unknown |
| [Google Stackdriver Error Reporting](https://cloud.google.com/error-reporting) | The Google Stackdriver Error Reporting API groups and counts similar errors from cloud services and... | No | Yes |  | Unknown |
| [Google Stackdriver Trace](https://cloud.google.com/trace/docs) | The Stackdriver Trace API allows you to send and retrieve latency data to and from Stackdriver... | No | Yes |  | Unknown |
| [Google Storage Transfer](https://google.com) | Transfers data from external data sources to a Google Cloud Storage bucket or between Google Cloud... | `OAuth` | Yes |  | Unknown |
| [Google Tasks](https://google.com) | The Google Tasks API lets you manage your tasks and task lists. | `OAuth` | Yes |  | Unknown |
| [Google Translator Toolkit](https://googlecode.blogspot.com/2009/12/google-translator-toolkit-data-api.html?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A%20GoogleCodeNews%20%28Google%20Code%3A%20News%29) | The Google Translator Toolkit Data API allows client applications to access and update... | No | Yes |  | Unknown |
| [Google Trends](https://developers.google.com/search/apis/trends) | The Google Trends API offers a layer for Google Trends data. | No | Yes |  | Unknown |
| [Google Vault](https://google.com) | Retention and eDiscovery for Google Workspace. | `OAuth` | Yes |  | Unknown |
| [Google Weave](https://developers.google.com/weave) | Google Weave is a communications platform designed for IoT devices that supports... | No | Yes |  | Unknown |
| [Google Web Fonts Developer](https://google.com) | The Google Web Fonts Developer API lets you retrieve information about web fonts served by Google. | No | Yes |  | Unknown |
| [Google Web Risk](https://google.com) | Web Risk API API | `OAuth` | Yes |  | Unknown |
| [Google YouTube Reporting](https://google.com) | Schedules reporting jobs containing your YouTube Analytics data and downloads the resulting bulk... | `OAuth` | Yes |  | Unknown |
| [Google+](https://google.com) | Builds on top of the Google+ platform. | `OAuth` | Yes |  | Unknown |
| [Google+ Domains](https://developers.google.com/+/domains/getting-started) | The Google+ Domains API enables Google Apps customers and ISVs with the ability to build custom... | No | Yes |  | Unknown |
| [Google+ JavaScript](https://developers.google.com/api-client-library/javascript/reference/referencedocs) | The Google+ JavaScript API provides methods and classes for working with the Google+ plugins,... | No | Yes |  | Unknown |
| [Gorest](https://gorest.co.in/) | Online REST API for Testing and Prototyping | `OAuth` | Yes |  | Free |
| [GoTiny](https://github.com/robvanbakel/gotiny-api) | A lightweight URL shortener, focused on ease-of-use for the developer and end-user | No | Yes | Yes | Unknown |
| [Gov DriveBC's Open511](http://www.drivebc.ca/) | This API is DriveBC's implementation of the Open511 specification. | No | Yes |  | Unknown |
| [gPodder](http://wiki.gpodder.org/wiki/Web_Services/API) | gPodder is a service that allows the user to download free audio and video content (Podcasts) to... | No | Yes |  | Unknown |
| [GrabzIt](https://grabz.it/api) | The GrabzIt API allows developers to create website previews, thumbnails, or full page screenshots. | No | Yes |  | Unknown |
| [Gravitee](https://docs.gravitee.io) | Gravitee is an open source API management platform. | No | Yes |  | Unknown |
| [Greendeck](https://www.greendeck.co/#/docs/landing) | Greendeck is a provider of AI-powered pricing optimization tools. | No | Yes |  | Unknown |
| [Greip](https://greip.io/contact) | This documentation shows how to use Greip API, By highlighting the API methods, options and some... | No | Yes |  | Unknown |
| [GrepCode](http://grepcode.com/type) | GrepCode is a Java code search service that looks for code stored in Maven and OSGI repositories. | No | Yes |  | Unknown |
| [GroupDocs Document Searching](https://docs.groupdocs.com/display/searchnet/Home) | This is indirect access to this service. Please refer to the corresponding SDK below. GroupDocs. | No | Yes |  | Unknown |
| [GroupDocs.Comparison .NET](https://docs.groupdocs.com/display/comparisonnet/home) | GroupDocs.Comparison for .NET allows developers performing in-detail comparison of two different... | No | Yes |  | Unknown |
| [GroupDocs.Comparison Java](https://docs.groupdocs.com/display/comparisonjava/Home) | The API provides Documents Comparison, Difference Checker and Documents Merging that support... | No | Yes |  | Unknown |
| [GroupDocs.Editor .Net](https://docs.groupdocs.com/display/editornet/Home) | GroupDocs.Editor for .NET is a flexible document editing API in HTML format that works seamlessly... | No | Yes |  | Unknown |
| [GroupDocs.Editor Java](https://docs.groupdocs.com/display/editorjava/Home) | The API enables document editing in HTML that supports multiple document formats. | No | Yes |  | Unknown |
| [GroupDocs.Metadata .Net](https://docs.groupdocs.com/display/metadatanet/Home) | GroupDocs.Metadata for .NET offers metadata extraction and management APIs, allowing developers to... | No | Yes |  | Unknown |
| [GroupDocs.Metadata Java](https://docs.groupdocs.com/display/metadatajava/Home) | It allows you to organize and facilitate documents with metadata identification in cross platform... | No | Yes |  | Unknown |
| [GSMA Directory](https://fiware-datamodels.readthedocs.io/en/latest/index.html) | This is a RESTful API to the GSMA API Directory and returns; search across all fields on the API,... | No | Yes |  | Unknown |
| [GST Number Verify or Search](https://www.knowyourgst.com/gstin-search-api) | KnowYourGST API for GST number verification helps you to integrate GST number verification facility... | No | Yes |  | Unknown |
| [GTmetrix](http://gtmetrix.com/api) | GTMetrix is a tool to test the speed and performance of websites. | No | Yes |  | Unknown |
| [GTX-Messaging HTTP Gateway](https://www.gtx-messaging.com/en/api-docs/http) | GTX-Messaging HTTP Gateway API allows developers to integrate SMS messaging into their... | No | Yes |  | Unknown |
| [Guidebook](https://developer.guidebook.com) | Guidebook is an app building platform that lets you create and publish your app to the Google Play... | No | Yes |  | Unknown |
| [Guidebox](http://api.guidebox.com) | Guidebox is an internet TV episode and movie finder. | No | Yes |  | Unknown |
| [GuideStar Advanced Search](https://data.guidestar.org/#guidestar_advsearch) | GuideStar is an information service that reports on IRS-registered nonprofit organizations in the U. | No | Yes |  | Unknown |
| [GuideStar Exchange](https://data.guidestar.org/#guidestar_exchange) | GuideStar is an information service that reports on IRS-registered nonprofit organizations in the U. | No | Yes |  | Unknown |
| [Gun Core](https://gun.eco/docs/API) | The Gun API is a database for developers solution that provides decentralized services. | No | Yes |  | Unknown |
| [HackPad](https://hackpad.com/Hackpad-API-v1.0-k9bpcEeOo2Q) | HackPad is a collaborative workspace designed for ease of use and to enhance the speed of... | No | Yes |  | Unknown |
| [Halosys](https://halomem.halosys.com/adminguide) | Halosys provides a single Unified Enterprise Mobile Enablement platform that enables businesses to... | No | Yes |  | Unknown |
| [Handwrytten](https://handwrytten.com) | This is the Handwrytten API for sending cards written in the handwriting of your choice. | No | Yes |  | Unknown |
| [Happykwik](http://happykwik.in/frontendfile/images//pdf/Happy%20Kwik%20HTT1.pdf) | The Happykwik mobile recharge API support covers a wider range of fields from operating system to... | No | Yes |  | Unknown |
| [Hasura](https://hasura.io/opensource/) | GraphQL and REST API Engine with built in Authorization | `apiKey` | Yes | Yes | Free |
| [Health of Iceland](http://iceland.adagios.org/iceland) | Health of Iceland is a site dedicated to real-time monitoring of various metrics important to... | No | Yes |  | Unknown |
| [Heap Analytics Server-Side](https://heapanalytics.com/docs) | The Heap Analytics API provides developers a way to access and integrate the functionality of Heap... | No | Yes |  | Unknown |
| [Hello Salut](https://www.fourtonfish.com/hellosalut/hello) | Hello Salut is a service that allows users to greet online visitors in their native languages. | No | Yes |  | Unknown |
| [Helpshift](https://developers.helpshift.com/rest-api/getting-started) | Helpshift is an embeddable support desk designed specifically for native apps. | No | Yes |  | Unknown |
| [Heroku](https://devcenter.heroku.com/articles/platform-api-reference/) | REST API to programmatically create apps, provision add-ons and perform other task on Heroku | `OAuth` | Yes | Yes | Free |
| [Hexillion Whois](https://hexillion.com/whois) | The Hexillion Whois API provides a single, consistent, programmable interface to the Whois system. | No | Yes |  | Unknown |
| [Heystaks](https://www.heystaks.com/developers/#overview) | HeyStaks is a social search service that plugs in to Google, Bing, and Yahoo! | No | Yes |  | Unknown |
| [Heyzap Campaigns](https://developers.heyzap.com/docs/api_campaigns) | The Heyzap Campaigns API integrates ad campaigns into applications. | No | Yes |  | Unknown |
| [Highcharts](https://www.highcharts.com/docs) | Highcharts is a charting library that lets users add interactive charts to a web site or web... | No | Yes |  | Unknown |
| [Highcharts Highstock](https://www.highcharts.com/docs) | Highcharts is a charting library that gives users access to interactive charts that can be added to... | No | Yes |  | Unknown |
| [Hindenbug](http://hindenbug.com/api) | Webservice for programmers to submit bugs or logs of software projects to a single REST interface... | No | Yes |  | Unknown |
| [HitchHiker Flight](https://www.hitchhiker.net/index.php/our-solutions/#flightapi) | The HitchHiker Flight API is the content aggregation and shopping solution for all kinds of... | No | Yes |  | Unknown |
| [HNSearch](https://www.hnsearch.com/api) | HNSearch is a search engine for Hacker News. | No | Yes |  | Unknown |
| [HockeyApp](https://rink.hockeyapp.net/api) | HockeyApp is an app testing service. It provides beta trial and analysis for developers perfecting... | No | Yes |  | Unknown |
| [Holiday](https://holidayapi.com/docs) | The Holiday API is a simple web service aiming to provide free programmatic information about... | No | Yes |  | Unknown |
| [Home Assistant](https://home-assistant.io/developers/api) | The Home Assistant Python REST API provides access to data methods for the Home Assistant control... | No | Yes |  | Unknown |
| [Home Assistant RESTful](https://dev-docs.home-assistant.io/en/dev) | The Home Assistant RESTful API provides acces to data for the Home Assistant control system. | No | Yes |  | Unknown |
| [Home Assistant Serversent Events Streaming](https://github.com/fabaff/home-assistant-sse) | The Home Assistant Server Events Streaming API allows you to consume server-sent events. | No | Yes |  | Unknown |
| [Homes.com](https://api.homesconnect.com/swagger/ui/index) | This is a Homesconnect leads service for Homes.com. The Homes. | No | Yes |  | Unknown |
| [Hoppscotch](https://hoppscotch.io/) | A lightweight, fast, and customizable app for testing and designing APIs. | No | Yes |  | Free |
| [Hoptoad](https://help.airbrake.io/kb/api-2/api-overview) | Hoptoad collects errors generated by other applications, and aggregates the results for developer... | No | Yes |  | Unknown |
| [host-t.com](https://host-t.com) | Basic DNS query via HTTP GET request | No | Yes | No | Unknown |
| [Host.io](https://host.io) | Domains Data API for Developers | `apiKey` | Yes | Yes | Free |
| [Hoverfly](https://docs.hoverfly.io) | Hoverfly was designed to create a dependency sandbox that is a simulated development and test... | No | Yes |  | Unknown |
| [HTC Stereoscopic 3D](https://www.htcdev.com/devcenter/opensense-sdk/legacy-apis/stereoscopic-3d/stereoscopic-3d-api) | [Editor's Note: This is a legacy API and may not be supported by newer HTC devices. | No | Yes |  | Unknown |
| [htm2pdf](https://www.htm2pdf.co.uk/html-to-pdf-api) | A simple yet powerful API of use to programmers out there who want to seamlessly convert HTML to... | No | Yes |  | Unknown |
| [HTML PDF](https://htmlpdfapi.com) | HTML PDF API is a cloud-based tool that allows users to generate a PDF file from a URL, HTML... | No | Yes |  | Unknown |
| [HTTP2.Pro](https://http2.pro/doc/api) | Test endpoints for client and server HTTP/2 protocol support | No | Yes |  | Free |
| [Httpbin](https://httpbin.org/) | A Simple HTTP Request & Response Service | No | Yes | Yes | Free |
| [httpbin.org](https://kennethreitz.org) | A simple HTTP Request & Response Service.  Run locally:  $ docker run -p... | No | Yes |  | Unknown |
| [HTTPie](https://httpie.io) | a free command-line HTTP client for the API era | No | Yes |  | Free |
| [httpSMS](https://docs.httpsms.com/) | Use your Android phone as an SMS gateway to send and receive SMS messages via a simple HTTP API | `apiKey` | Yes | Yes | Free |
| [Hubapi Custom Workflow Actions](https://hubapi.com) | Create custom workflow actions | `apiKey` | Yes |  | Unknown |
| [Hubapi Files](https://hubapi.com) | Upload and manage files. | `apiKey` | Yes |  | Unknown |
| [HugeServer ION](https://ion.hugeserver.com/api/v2/doc) | The HugeServer ION platform offers a server control panel and automation system. | No | Yes |  | Unknown |
| [Humanoid](https://gethumanoid.com/v3/docs) | Humanoid is a data labor service. Companies can hire Humanoid to perform micro-tasks that involve... | No | Yes |  | Unknown |
| [Hunter](https://hunter.io/api) | API for domain search, professional email finder, author finder and email verifier | `apiKey` | Yes |  | Free |
| [Hymnary](https://hymnary.org/api/scripture) | The Hymnary API provides a comprehensive index of hymns and hymnals. | No | Yes |  | Unknown |
| [I'mPDF](https://www.impdf.com/html-to-pdf-api.htm) | I'm PDF provides conversion services to change a web page into a PDF. | No | Yes |  | Unknown |
| [i>clicker GO](https://webservices.iclicker.com) | [This API has been deactivated]The i>clicker is a type of device that helps audiences and... | No | Yes |  | Unknown |
| [IAPHUB](https://www.iaphub.com/docs/api) | App developers know how time consuming it is to implement In-App purchases the right way their... | No | Yes |  | Unknown |
| [IBM Bluemix Car Diagnostic](https://github.com/HellaVentures/Car-Diagnostic-API) | The IBM Bluemix Car Diagnostic API translates OBD error codes into a human readable form, making it... | No | Yes |  | Unknown |
| [IBM Text to Speech](https://cloud.ibm.com/docs/text-to-speech/getting-started.html) | Convert text to speech | `apiKey` | Yes | Yes | Free |
| [IBM Watson IoT Platform REST](https://docs.internetofthings.ibmcloud.com/apis/swagger/index.html) | The Watson IOT Platform facilitates secure communication between IoT devices using MQTT and TLS. | No | Yes |  | Unknown |
| [iBuildApp](http://ibuildapp.com/api.howto.php) | iBuildApp is a "do-it-yourself" mobile application building platform. | No | Yes |  | Unknown |
| [Icanhazepoch](https://icanhazepoch.com) | Get Epoch time | No | Yes | Yes | Unknown |
| [Icanhazip](https://major.io/icanhazip-com-faq/) | IP Address API | No | Yes | Yes | Unknown |
| [ID4i](http://bluerain.de) | ID4i HTTP API | `apiKey` | Yes |  | Unknown |
| [Idescat Population Search](http://api.idescat.cat/pob/v1) | The Population search API provides information on the population by sex for any territorial entity... | No | Yes |  | Unknown |
| [Idilia Sense Analytics](http://www.idilia.com/developer) | Precisely annotate text with fine senses using the world's only API that disambiguates both common... | No | Yes |  | Unknown |
| [IFTTT](https://platform.ifttt.com/docs/connect_api) | IFTTT Connect API | No | Yes |  | Free |
| [Igloo](https://customercare.igloosoftware.com/developers/kb/articles/overview_of_the_igloo_api) | This service provides access to API endpoints to view and manipulate various data sources inside... | No | Yes |  | Unknown |
| [IHMC Cmap](https://cmap.ihmc.us/xml) | Cmap is an API that allows third party developers to design programs that interact with the... | No | Yes |  | Unknown |
| [iKnode](https://www.iknode.com/help/documentation.html) | iKnode is a backend-as-a-service platform. | No | Yes |  | Unknown |
| [Illiri](http://www.illiri.com/api.html) | Illiri is a technical service that connects two or more devices or platforms (mobile, web, radio,... | No | Yes |  | Unknown |
| [Image-Charts](https://documentation.image-charts.com/) | Generate charts, QR codes and graph images | No | Yes | Yes | Free |
| [ImageNet](http://www.image-net.org/download-API) | ImageNet is an image dataset created with the intention of providing researchers, students, and... | No | Yes |  | Unknown |
| [IMG4Me](https://img4me.com/developer) | IMG4Me is a web tool that converts text into images to prevent crawlers (Supports multiple... | No | Yes |  | Unknown |
| [IMIconnect Custom Event](https://docs.imiconnect.com) | The IMIconnect Custom Event API is a RESTful service that allows third party applications to make... | No | Yes |  | Unknown |
| [IMIconnect Messaging](https://docs.imiconnect.com) | The IMIconnect Messaging API provides individual channel objects that allow third party and... | No | Yes |  | Unknown |
| [IMIconnect Profile](https://docs.imiconnect.com) | The IMIconnect Profile API is a RESTful service that enables clients with the ability to manage... | No | Yes |  | Unknown |
| [IMIconnect Segment](https://docs.imiconnect.com) | The IMIconnect Segment API is a RESTful service that is used on the IMIconnect platform for... | No | Yes |  | Unknown |
| [IMIconnect Thread](https://docs.imiconnect.com) | The IMIconnect Thread API is a RESTful service that allows you to fetch thread information from a... | No | Yes |  | Unknown |
| [IMIconnect Topic](https://docs.imiconnect.com) | The IMIconnect Topic API is a RESTful service that is used to categorize and collate the users... | No | Yes |  | Unknown |
| [IMIconnect Transaction Status](https://docs.imiconnect.com) | The IMIconnect Transaction Status API allows you to query the status of a transaction that is... | No | Yes |  | Unknown |
| [IMIconnect Webhook](https://docs.imiconnect.com) | The IMIconnect Webhooks API provides delivery notifications that contain the delivery status of a... | No | Yes |  | Unknown |
| [ImmobilienScout 24 Expose](http://api.immobilienscout24.de/our-apis/expose.html) | Immobilien Scout 24 is a Real Estate company in Germany that lets customers to search for ads,... | No | Yes |  | Unknown |
| [ImmobilienScout24 Import-Export](http://api.immobilienscout24.de/our-apis/import-export.html) | Immobilien Scout 24 is a Real Estate company in Germany that lets customers to search for ads,... | No | Yes |  | Unknown |
| [ImmobilienScout24 Search](http://api.immobilienscout24.de/our-apis/search.html) | Immobilien Scout 24 is a Real Estate company in Germany that lets customers to search for ads,... | No | Yes |  | Unknown |
| [Impact Radius](http://www.impactradius.com/blog/get-connected-with-rest-api) | (Note Impact Radius is now known as "Impact") Impact provides performance-advertising services for... | No | Yes |  | Unknown |
| [Imperavi](https://imperavi.com/redactor/docs/api) | The Imperavi API works as a plugin to use Redactor, a WYSIWYG text editor that developers can use... | No | Yes |  | Unknown |
| [import.io](http://api.docs.import.io/) | Retrieve structured data from a website or RSS feed | `apiKey` | Yes |  | Free |
| [IMSAS](http://www.imsasllc.com/docs) | IMSAS LLC is a leading provider of Web Service solutions across a range of background screening... | No | Yes |  | Unknown |
| [IMVDb](http://imvdb.com/developers/api) | The Internet Music Video Database (IMVDb) is a large online collection of music videos, artists,... | No | Yes |  | Unknown |
| [IMwallet Recharge](http://www.imwallet.in) | The IMwallet Recharge API allows developers to integrate online mobile recharge services into their... | No | Yes |  | Unknown |
| [Incognia Platform](https://docs.incognia.com) | This is an indirect API that is accessible via the Incognia Location Behavioral Biometric SDK. | No | Yes |  | Unknown |
| [Increase](https://increase.com) | Increase API API | `Bearer` | Yes |  | Unknown |
| [IndexDen](http://www.indexden.com/documentation) | IndexDen is a hosted full-text search database. | No | Yes |  | Unknown |
| [Indigo Domotics](http://wiki.indigodomo.com/doku.php?id=indigo_s_restful_urls) | The Indigo Domotics API allows developers to integrate methods for monitoring and controlling their... | No | Yes |  | Unknown |
| [Indogsm Cell Phone Tracker](http://www.indogsm.org) | The Indogsm Cell Phone Tracker API allows developers to access and integrate the functionality of... | No | Yes |  | Unknown |
| [Infinispan](http://infinispan.org) | The Infinispan API allows developers to integrate distributed in-memory key/value data storage into... | No | Yes |  | Unknown |
| [Inflectus](http://inflectus.com/docs.html) | Inflectus is a simple web service that allows developers to easily add webhooks to applications. | No | Yes |  | Unknown |
| [Infogroup Infoconnect](http://developer.infoconnect.com) | The Infoconnect API is a super powerful way for you to tap into the immense Infogroup Consumer and... | No | Yes |  | Unknown |
| [InfoNgen](http://www.infongen.com) | InfoNgen is a content discovery engine and service for industry professionals. | No | Yes |  | Unknown |
| [Information Environment Service Registry](http://iesr.ac.uk/use/index.html) | An academic "Yellow Pages" to support discovery and use of scholarly resources. | No | Yes |  | Unknown |
| [Inoreader](https://www.inoreader.com/developers) | The Inoreader API provides methods that returns basic information about the logged in user, will... | No | Yes |  | Unknown |
| [Insomnia](https://insomnia.rest/) | A free API client that allows you to design, debug, test, and mock APIs locally, on Git, or cloud. | `OAuth` | Yes |  | Free |
| [Install IPA](https://www.installipa.com) | The Install IPA API creates OTA (Over the Air) installation links for iOS Apps. | No | Yes |  | Unknown |
| [InstantLinkIndexer](http://www.instantlinkindexer.com/apidocs.php) | Instant Link Indexer is a software platform that lets users to index their links to the web/ search... | No | Yes |  | Unknown |
| [Instaparser Article](https://www.instaparser.com/docs/1/article_api) | The Instaparser Article API allows developers to parse full articles, including their body text,... | No | Yes |  | Unknown |
| [InstaUnite](https://www.instaunite.com/instaunite_1/pages/instauniteRestApiOverview.jsp) | The InstaUnite API allows customers to integrate remote fleet, asset & equipment management... | No | Yes |  | Unknown |
| [Insteon](https://www.insteon.com/developer) | Insteon is a home-automation system. Insteon allows users to automate various functions at home,... | No | Yes |  | Unknown |
| [InsynQ](https://www.insynq.com) | InsynQ provides businesses with cloud-based hosting for their apps. | No | Yes |  | Unknown |
| [Intellexer](https://www.intellexer.com/intellexer_api.html) | The Intellexer API enables developers to embed text mining products in consumer or enterprise... | No | Yes |  | Unknown |
| [Intellexere](https://www.intellexere.com/en/ikb/api) | The service is based on natural language programming underlying the provider's Mnemoo intelligent... | No | Yes |  | Unknown |
| [InterMine](https://intermine.readthedocs.io/en/latest/web-services/) | InterMine lets users create databases for integrating and analyzing complex biological data from... | No | Yes |  | Unknown |
| [International Showtimes](https://api.cinepass.de/documentation/v4) | The International Showtimes & Ticketing API provides cinema information, listings, ticketing links,... | No | Yes |  | Unknown |
| [Internet Acronym Server](http://acronyms.silmaril.ie/cgi-bin/uncgi/acronyms?info=api) | Silmaril is an international management consultant company that also has an accessible collection... | No | Yes |  | Unknown |
| [Intersection Observer](https://github.com/mayankchd/intersectionObserverAPI) | The Intersection Observer REST API allows developers to access and integrate the functionality of... | No | Yes |  | Unknown |
| [Interstate Developers](http://developers.interstateapp.com) | Interstate provides businesses and developers with a way to plan and share their development... | No | Yes |  | Unknown |
| [InterSystems IRIS Native](https://docs.intersystems.com) | The InterSystems IRIS Data Platform simplifies the development, deployment, and maintenance of... | No | Yes |  | Unknown |
| [InterSystems WebSockets](https://docs.intersystems.com) | The InterSystems WebSockets API can push messages to clients by providing a channel between a... | No | Yes |  | Unknown |
| [Interzoid Country Data Standardization](https://www.interzoid.com) | This API provides a standard for country name for the purposes of standardizing country name data,... | No | Yes |  | Unknown |
| [Interzoid Get Area Code](https://www.interzoid.com) | This API provides area code information for a given telephone area code. | No | Yes |  | Unknown |
| [Interzoid Get Area Code From Number](https://www.interzoid.com) | This API provides area code information for a given telephone number. | No | Yes |  | Unknown |
| [Interzoid Get Country Match Similarity Key](https://www.interzoid.com) | This API provides a similarity key used to match with other similar country name data, including... | No | Yes |  | Unknown |
| [Interzoid Get Full Name Match Similarity Key](https://www.interzoid.com) | This API provides a similarity key used to match with other similar full name data, including for... | No | Yes |  | Unknown |
| [Interzoid Get Full Name Parsed Match Similarity Key](https://www.interzoid.com) | This API provides a similarity key used to match with other similar full name data when data fields... | No | Yes |  | Unknown |
| [Interzoid State Data Standardization](https://www.interzoid.com) | This API provides the two-letter state abbreviation (or the province abbreviation for Canada) for... | No | Yes |  | Unknown |
| [Intouch By Eniro](https://intouch.no/api.php) | Intouch is a service of Eniro, a local search engine serving the Nordic region and Poland. | No | Yes |  | Unknown |
| [Ionic](https://ionicframework.com/docs) | Ionic is an application creation service. Ionic allows users to create, design, and manage hybrid... | No | Yes |  | Unknown |
| [IonPush](https://ionpush.appit-online.de) | IonPush allows us to publish changes and hot updates to our hybrid mobile applications without... | No | Yes |  | Unknown |
| [IP Address](https://www.ipaddressapi.com/ip_address_location_api) | The IP address location API is a tool that lets users lookup unlimited IP addresses in realtime... | No | Yes |  | Unknown |
| [IP Bouncer](http://ipbouncer.co) | The IP Bouncer API gives developers access control for any visitor's IP address, based on a set of... | No | Yes |  | Unknown |
| [IP Details](https://rapidapi.com/Bluehatcoders/api/ip-details-api) | Geographic location of an IP address or any domain name along with some other useful information | `apiKey` | Yes |  | Free |
| [IP-API.com Geolocation](https://ip-api.com) | IP-API.com is a website that allows users to lookup the location of an IP address. | No | Yes |  | Unknown |
| [ip-fast.com](https://ip-fast.com/docs/) | IP address, country and city | No | Yes | Yes | Unknown |
| [IP2WHOIS Information Lookup](https://www.ip2whois.com/) | WHOIS domain name lookup | `apiKey` | Yes |  | Free |
| [ipapi](https://ipapi.com/documentation) | ipapi offers a free, secure and easy-to-integrate IP address to geolocation REST API allowing users... | No | Yes |  | Unknown |
| [ipfind.io](https://ipfind.io) | Geographic location of an IP address or any domain name along with some other useful information | `apiKey` | Yes | Yes | Free |
| [IPify](https://www.ipify.org/) | A simple IP Address API | No | Yes |  | Free |
| [IPLocate](https://www.iplocate.io/) | IP geolocation and threat data API | No | Yes | Yes | Free |
| [iplocationtools](https://iplocationtools.com) | iplocationtools provides web services that use an IP address to look up geolocation and fraud... | No | Yes |  | Unknown |
| [IPQuery](https://ipquery.io) | A free IP Geolocation and proxy/tor/VPN detection API | No | Yes | Yes | Free |
| [IPSW Firmware Links](https://ipswdownloads.docs.apiary.io/) | IPSW is an independent resource that enables users to find links to download iOS firmware. | No | Yes |  | Unknown |
| [IPTranslator](http://api.iptranslator.com) | IPTranslator, by Iconic Translation Machines Ltd. | No | Yes |  | Unknown |
| [IPv4](http://api.ipv4.cf) | IPv4.cf is a free IP Lookup service for non-commercial use. Ipv4. | No | Yes |  | Unknown |
| [iQualify Management](https://iqualify.com) | The iQualify API offers management responses for building learning experiences using your iQualify... | `apiKey` | Yes |  | Unknown |
| [iQuipsys Positron](http://iquipsys.com) | iQuipsys Positron is a REST interface designed to provide tracking capabilities for personnel and... | No | Yes |  | Unknown |
| [Iris](http://iris.lore.ai) | The Iris API provides developers with full text search access to documents like reports,... | No | Yes |  | Unknown |
| [Iron.io IronWorker](https://dev.iron.io) | Iron.io's IronWorker is a task management system. | No | Yes |  | Unknown |
| [ISBNdb](https://isbndb.com) | Definition of ISBNdb.com API | `apiKey` | Yes | Yes | Unknown |
| [iServe](https://iserve.kmi.open.ac.uk) | The service provides access to lists and descriptions of web services and APIs. | No | Yes |  | Unknown |
| [iSnare Answers](https://www.isnare.org/api_documents) | iSnare Answers is a question and answer website that covers both general and niche topics. | No | Yes |  | Unknown |
| [iSpeech Automated Speech Recognition](https://www.ispeech.org/api) | iSpeech is a company that provides high-quality text-to-speech and voice recognition software (SDKs... | No | Yes |  | Unknown |
| [iSpeech Text-To-Speech](https://www.ispeech.org/api) | iSpeech is a company that provides high-quality text-to-speech and voice recognition software (SDKs... | No | Yes |  | Unknown |
| [Istabai](https://istabai.com/api/?lang=en) | Istabai is an application that allows users to manage their home heating systems from anywhere with... | No | Yes |  | Unknown |
| [iTunes and iTunes Connect](http://itunesapis.com) | A simple REST web service to access the iTunes App Store and iTunes Connect data. | No | Yes |  | Unknown |
| [Ivona](http://www.ivona.com/us/saas/api) | IVONA Software develops Text-to-Speech solutions to fully voice any computer, application, device... | No | Yes |  | Unknown |
| [IX-](https://ix-api.net/api-documentation) | The IX-API interface allows you to configure, change, and delete Internet Exchange services. | No | Yes |  | Unknown |
| [JailBase](http://www.jailbase.com/api) | Jailbase is an informational site about arrested persons. | No | Yes |  | Unknown |
| [Japan Seismic Hazard Information Station](https://www.j-shis.bosai.go.jp/api-list) | The Japan Seismic Hazard Information Station, or J-SHIS, is part of Japan's National Research... | No | Yes |  | Unknown |
| [Java 9 Stack-Walking](http://openjdk.java.net/jeps/259) | The Java 9 Stack-Walking API provides a stream of information in stack traces during the execution... | No | Yes |  | Unknown |
| [JavaScript Minifier](http://javascript-minifier.com/raw) | JavaScript Minifier is a simple tool for removing all unnecessary characters from the user's... | No | Yes |  | Unknown |
| [Jawbone UP](https://jawbone.com/up/developer) | Jawbone develops human-centered wearable technology and audio devices. | No | Yes |  | Unknown |
| [Jelastic Cloud](https://docs.jelastic.com/api) | Jelastic is a cloud platform that allows for hosting and server services in the cloud. | No | Yes |  | Unknown |
| [JitPack.io](https://jitpack.io/docs) | This JitPack API provides a way to build git libraries that you want to be available and enables... | No | Yes |  | Unknown |
| [JotForm](https://api.jotform.com/docs/) | JotForm is an online form builder that allows users to create and manage forms for websites without... | No | Yes |  | Unknown |
| [Journy Developer documentation](https://developers.journy.io) | # Welcome  Implementing a new tool can be daunting, but it doesn't have to. | No | Yes |  | Unknown |
| [JPG Optimiser](http://jpgoptimiser.com) | JPG Optimiser is a simple tool that allows users to reduce the size of JPG image files without... | No | Yes |  | Unknown |
| [Jscrambler GraphQL](https://docs.jscrambler.com/code-integrity/documentation/api/usage-example) | The Jscrambler GraphQL API enables mutable querying. | No | Yes |  | Unknown |
| [jsDelivr](https://github.com/jsdelivr/data.jsdelivr.com) | Package info and download stats on jsDelivr CDN | No | Yes | Yes | Free |
| [JSON 2 JSONP](https://json2jsonp.com/) | Convert JSON to JSONP (on-the-fly) for easy cross-domain data requests using client-side JavaScript | No | Yes |  | Free |
| [JSONbin.io](https://jsonbin.io) | Free JSON storage service. Ideal for small scale Web apps, Websites and Mobile apps | `apiKey` | Yes | Yes | Free |
| [JSONsilo.com](https://jsonsilo.com) | Hassle-free JSON hosting. Convert your JSON file to an API in minutes at no cost. | `apiKey` | Yes | Yes | Free |
| [JuiceDB](https://www.juicedb.com/for/developers) | The JuiceDB API is currently in Beta. It provides access to the JuiceDB Platform and enables 3rd... | No | Yes |  | Unknown |
| [Jukko](https://jukko.com) | Jukko is a customer engagement and monetization platform centered around contributing to nonprofits. | No | Yes |  | Unknown |
| [Kaa Admin](http://docs.kaaproject.org/display/KAA/Admin+REST+API) | The Kaa Admin API allows developers to integrate their own applications with its internet of things... | No | Yes |  | Unknown |
| [Kanbanize](https://demo.kanbanize.com/openapi) | Kanbanize is a visual management system for business oriented applications which can be used for... | No | Yes |  | Unknown |
| [Kannuu Locker](http://api-doc.kannuu.com) | Kannuu is a provider of TV content discovery solutions. | No | Yes |  | Unknown |
| [Kannuu Lookup](http://api-doc.kannuu.com) | Kannuu is a provider of TV content discovery solutions. | No | Yes |  | Unknown |
| [Kannuu Suggest](http://api-doc.kannuu.com) | Kannuu is a provider of TV content discovery solutions. | No | Yes |  | Unknown |
| [Kariru Library Search](https://calil.jp/doc/api_ref.html) | The service consolidates data from 2000 Japanese online library catalogs to allow streamlined... | No | Yes |  | Unknown |
| [KawanSoft AceQL HTTP](https://www.aceql.com/documentation) | AceQL HTTP is a secure framework of REST like HTTP APIs that allows accessing to remote SQL... | No | Yes |  | Unknown |
| [KAYWA QR-Code](http://faq.kaywa.com/category/api) | The Kaywa QR-Code API is open API to facilitate the writing of programs to create and decode... | No | Yes |  | Unknown |
| [KDE Pastebin](https://sayakb.github.io/sticky-notes/pages/api) | KDE Pastebin is an opensource pastebin service allowing users to upload snippets of text or code... | No | Yes |  | Unknown |
| [Keepcon](https://keepcon.com/integrations) | Keepcon is a content moderation solution. Users can integrate Keepcon into their content management... | No | Yes |  | Unknown |
| [Kegg Medicus](https://www.kegg.jp/kegg/rest) | The Kegg Medicus API allows developers access to customized KEGG-based analysis, such as for... | No | Yes |  | Unknown |
| [Kelley Blue Book InfoDriver](http://www.800bluebook.com/dealer-solutions/data-syndication) | The service syndicates data about car models, features, and selling prices from the provider's... | No | Yes |  | Unknown |
| [Keygen](https://keygen.sh/docs/api) | The Keygen REST API allows developers to access and integrate the functionality of Keygen with... | No | Yes |  | Unknown |
| [Keystroke Resolver](https://github.com/atom/atom-keymap/pull/164) | With the Keystroke Resolver API, users can assign Chrome keyboard events to Atom-style keystrokes. | No | Yes |  | Unknown |
| [Keyword Tool](https://keywordtool.io/api/documentation) | The Keyword Tool API integrates search volume data. | No | Yes |  | Unknown |
| [KidoZen](http://www.kidozen.com/developer-center) | KidoZen is a mobile application backend-as-a-service platform. | No | Yes |  | Unknown |
| [Kinetica](https://www.kinetica.com) | The Kinetica API allows developers to programmatically access their databases to create tables, add... | No | Yes |  | Unknown |
| [Kinetise](http://alterapi.kinetise.com) | Kinetise is an application building service and backend-as-a-service for creating, building, and... | No | Yes |  | Unknown |
| [Kintone JavaScript](https://developer.kintone.io/hc/en-us/articles/213149757) | The Kintone JavaScript Indirect API presents various APIs that can be used with JavaScript files... | No | Yes |  | Unknown |
| [kintone REST](https://developer.kintone.io/hc/en-us/articles/204047365) | The kintone REST API allows developers to manage app records, retrieve app descriptions, and... | No | Yes |  | Unknown |
| [Kinvey](https://console.kinvey.com) | Kinvey enables developers to setup, use, and operate a cloud backend for mobile applications. | No | Yes |  | Unknown |
| [Kirby](https://getkirby.com/docs/guide/api) | Kirby is a file-based cms service designed for users who know how to use an FTP client and a text... | No | Yes |  | Unknown |
| [KISTI](http://isrl.kisti.re.kr:8080/wsearch/search/openAPI.jsp) | From their site: This API finds topic-centric experts (such as the names of researchers) and... | No | Yes |  | Unknown |
| [Kiuwan](https://www.kiuwan.com/docs/display/K5/REST+API) | Kiuwan is a cloud service offering from Optimtyh Software that allows developers to analyze and... | No | Yes |  | Unknown |
| [Kivy](https://kivy.org/doc/stable/api-kivy.html) | The Kivy API allows developers to integrate multi-touch aware widgets and accelerated OpenGL... | No | Yes |  | Unknown |
| [Kngine](http://kngine.com/api/APIDocumentation.html) | Kngine is a search engine that is built on natural language processing so that it can understand... | No | Yes |  | Unknown |
| [Knowvent](http://www.knowvent.com/help-docs) | Knowvent's REST API is a cloud-based notifications hub for your business. | No | Yes |  | Unknown |
| [Koality](https://koalitycode.com/documentation?view=adminApi) | Koality is a platform for coding, code testing, and code parallelization for development teams. | No | Yes |  | Unknown |
| [Konghq Viscovery](https://konghq.com/docs/api) | Viscovery let’s you add and edit images for searching and matching | `apiKey` | Yes |  | Unknown |
| [KONTESTS](https://kontests.net/api) | For upcoming and ongoing competitive coding contests | No | Yes |  | Unknown |
| [Kony](http://developer.kony.com/twiki/bin/login/Portal/WebHome?origurl=) | Kony is a mobile application development service. | No | Yes |  | Unknown |
| [Krak](http://basicservices.webservice.krak.dk/companysearch.asmx?) | Krak is a Danish search engine for looking up companies, people, maps, brands, and products. | No | Yes |  | Unknown |
| [Kroki](https://kroki.io) | Creates diagrams from textual descriptions | No | Yes | Yes | Free |
| [KuantoKusta](http://kuantokusta-api.appspot.com) | The KuantoKusta API provides tools for developers for application development with their services. | No | Yes |  | Unknown |
| [Kubernetes](https://kubernetes.io/docs/reference/) | Kubernetes is an open source standard for developing apps that make containerized applications... | No | Yes |  | Unknown |
| [kudosKit by ironSource](http://kudos-kit.com/kudosKit-Instructions-iOS.html#sec-1) | kudosKit is a user appreciation platform for application developers and publishers to integrate... | No | Yes |  | Unknown |
| [Kueri.me](http://docs.kueri.me/docs-home) | The Kueri.me API is a product that provides remote procedure call in JSON formats. | No | Yes |  | Unknown |
| [KuroBase](http://console.kurobase.com/docs/api) | KuroBase is a cloud-based Database as a Service (DbaaS) that can be set up quickly and scales... | No | Yes |  | Unknown |
| [Kuzzle](https://docs.kuzzle.io/) | Kuzzle is a backend designed for application development. | No | Yes |  | Unknown |
| [kvdb.io](https://kvdb.io) | The kvdb.io API is a key-value store as a service for metrics collection, and IoT applications,... | No | Yes |  | Unknown |
| [Kwik](http://www.kwik.me) | The Kwik API allows developers to access and integrate the functionality of Kwik with other... | No | Yes |  | Unknown |
| [Kwik Delivery](http://plug.kwik.delivery) | The KWIK Platform exposes its service to third parties via an API for urban, last-mile shipments. | No | Yes |  | Unknown |
| [LabJack CloudDot](http://labjack.com/support/clouddot/rest-api) | LabJack builds hardware and software to make measurement and automation simple and affordable. | No | Yes |  | Unknown |
| [LabStack](https://labstack.com/docs) | LabStack provides a secure platform for exposing your local servers to the internet. | No | Yes |  | Unknown |
| [Laravel](http://laravel.com/api/5.1) | Laravel, known as a PHP framework for web artisans, offers an API to integrate web features into... | No | Yes |  | Unknown |
| [Launch Library](https://launchlibrary.net/1.1/docs/api.html) | The Launch Library API intends to provide developers with a list of upcoming launches into space... | No | Yes |  | Unknown |
| [LaunchDarkly](https://apidocs.launchdarkly.com) | The LaunchDarkly REST API allows developers to access and integrate the functionality of... | No | Yes |  | Unknown |
| [LaunchDarkly Webhooks](https://apidocs.launchdarkly.com/v2.0/docs) | The LaunchDarkly Webhooks API allows you to build your own integrations that subscribe to changes... | No | Yes |  | Unknown |
| [LDSTech Gospel Library Catalog](http://tech.lds.org/wiki/Gospel_Library_Catalog_Web_Service) | LDSTech is a community site where users can contribute to the technological work of the LDS... | No | Yes |  | Unknown |
| [LDSTech Mormon Channel](http://tech.lds.org/radio) | LDSTech is a community site where users can contribute to the technological work of the LDS... | No | Yes |  | Unknown |
| [leanIX GraphQL](https://docs.leanix.net) | This LeanIX service allows you to interact with enterprise IT Inventory via the GraphQL API. | No | Yes |  | Unknown |
| [leanIX Metrics](https://docs.leanix.net) | This LeanIX Metrics service provides a way to store time series data in LeanIX. | No | Yes |  | Unknown |
| [leanIX Pathfinder](https://docs.leanix.net) | leanIX is an information technology company based in Germany that offers information hub services. | No | Yes |  | Unknown |
| [leanIX Webhooks](https://docs.leanix.net) | The LeanIX Webhooks API allows you to receive information about events in real time, to extend,... | No | Yes |  | Unknown |
| [LeanKit Kanban](https://support.leankit.com/entries/20265038-api-basics) | LeanKit Kanban is an online tool that allows users to visualize their organization’s processes on... | No | Yes |  | Unknown |
| [Leanplum](https://www.leanplum.com/docs#/setup/api) | Leanplum is an integrated optimization tool for mobile applications. | No | Yes |  | Unknown |
| [Lelylan](https://lelylan.com/features/#services) | Lelylan is a home and device automation service. | No | Yes |  | Unknown |
| [Letmc agentOS Api V2, Customer Login Call Group](https://letmc.com) | agentOS Api V2, Customer Login Call Group API | `apiKey` | Yes |  | Unknown |
| [Letmc agentOS API V3, Diary Call Group](https://letmc.com) | agentOS API V3, Diary Call Group API | `apiKey` | Yes |  | Unknown |
| [LetsMT](https://www.letsmt.eu/Integration.aspx) | The service provides text translation for languages on the standard list IETF RFC 5646. | No | Yes |  | Unknown |
| [Lexaurus](http://culturegrid.lexaurus.net/culturegrid/api) | REST API to manage and distribute controlled vocabularies, taxonomies, or data sets. | No | Yes |  | Unknown |
| [LIBRIS](http://librishelp.libris.kb.se/help/tech_swe.jsp?open=tech) | LIBRIS is an online search service of the National Library of Sweden. | No | Yes |  | Unknown |
| [License-API](https://github.com/cmccandless/license-api/blob/master/README.md) | Unofficial REST API for choosealicense.com | No | Yes | No | Free |
| [LIFX](https://api.developer.lifx.com/docs) | LiFi Labs has been producing the LIFX multicolored LED Wi-Fi lights since 2012. | No | Yes |  | Unknown |
| [Lijit](http://www.lijit.com/help/search_apidoc) | The Ligit API allows users to embed Lijit Search Results in their web pages. | No | Yes |  | Unknown |
| [LingoTip Translation](https://www.lingotip.com/translate/en/translation-api) | LingoTip Translation is an online translation service. | No | Yes |  | Unknown |
| [Lingout](https://lingout.com/docs/index) | Lingout is an application localization service that can be integrated seamlessly into the user's... | No | Yes |  | Unknown |
| [LinkMyDeals](https://linkmydeals.com/api.php) | The LinkMyDeals API offers a coupon and deal feeds platform that can be integrated with existing... | No | Yes |  | Unknown |
| [LinkPeek](https://linkpeek.com/docs) | LinkPeek.com instant preview service lets users convert any webpage to an image or picture file... | No | Yes |  | Unknown |
| [Litehosting](https://www.litehosting.org/knowledgebase.php?action=displayarticle&id;=9) | LiteHosting is a VPS host that is designed to accomodate crypto currencies. | No | Yes |  | Unknown |
| [Little Bird](http://getlittlebird.com) | Little Bird is a platform for users to engage with topic experts, build influence, learn about... | No | Yes |  | Unknown |
| [littleBits Cloud](http://developer.littlebitscloud.cc/api-http) | The littleBits Cloud API allows developers to connect their littleBits devices to the internet. | No | Yes |  | Unknown |
| [LiveDocx MailMerge](https://api.livedocx.com) | LiveDocx is a template-based document creation service. | No | Yes |  | Unknown |
| [Loader.io](http://docs.loader.io) | Loader.io is a web application testing service. Loader. | No | Yes |  | Unknown |
| [lobid](http://lobid.org/organisations/api/en) | lobid (Linking Open Bibliographic Data) is a service for retrieving and searching bibliographic... | No | Yes |  | Unknown |
| [Locality](http://locality.co.za/api) | Locality is a site dedicated to expanding web development in South Africa and around the world. | No | Yes |  | Unknown |
| [Localz Click&Collect](https://docs.localz.com/docs/products/collections.html) | The Localz Click&Collect API allows developers to integrate order support with their applications. | No | Yes |  | Unknown |
| [Lock Manager](https://lockmanagerapi.docs.apiary.io/#reference) | Lock Manager enables the control of IoT locks. | No | Yes |  | Unknown |
| [Loco Language Pack Converter](https://localise.biz/free/converter/api) | Loco is a localization service designed to manage a repository of assets along with their versions... | No | Yes |  | Unknown |
| [Locu](https://dev.locu.com/documentation) | Locu is a menu creation and management tool for restaurants. | No | Yes |  | Unknown |
| [Loggly](https://www.loggly.com/docs/api-overview) | Loggly is a cloud based logging service, with tools for collecting data in any format, searching... | No | Yes |  | Unknown |
| [Loggr](http://docs.loggr.net/api) | Loggr is a service that provides web application analytics. | No | Yes |  | Unknown |
| [LogicMonitor](https://www.logicmonitor.com/support/rest-api-developers-guide/overview/using-logicmonitors-rest-api) | The LogicMonitor API is available in a 14-day trial after developers create an account. | No | Yes |  | Unknown |
| [LogMyTime](http://www.logmytime.de/Api/Index) | LogMyTime provides a time-tracking service aimed at self-employed workers or small businesses. | No | Yes |  | Unknown |
| [Logs.to](https://logs.to/) | Generate logs | `apiKey` | Yes |  | Unknown |
| [Longdo Dict](https://dict.longdo.com/page/api) | Londo Dict is a branch of the londo.com website which is centered around word use and language... | No | Yes |  | Unknown |
| [Losant](https://docs.losant.com/rest-api/overview) | The Losant REST API allows developers to access and integrate the functionality of Losant with... | No | Yes |  | Unknown |
| [Lua Decompiler](https://lua-decompiler.ferib.dev/) | Online Lua 5.1 Decompiler | No | Yes | Yes | Free |
| [LucidChart](https://www.lucidchart.com/pages/api_documentation) | LucidChart is diagram- and chart-making platform. | No | Yes |  | Unknown |
| [Lucidworks](https://doc.lucidworks.com/fusion/2.4/REST-API-Reference.html) | The Lucidworks API integrates data intelligence search features with the aim to build better... | No | Yes |  | Unknown |
| [Ludei Cloud](https://api.ludei.com/docs) | Ludei helps its users develop apps and games with HTML5. | No | Yes |  | Unknown |
| [Lufthansa LH Partner](https://lufthansa.com) | LH Partner API API | `OAuth` | Yes |  | Unknown |
| [Lufthansa LH Public](https://lufthansa.com) | LH Public API API | `OAuth` | Yes |  | Unknown |
| [LuxCloud](https://api.luxcloud.net) | Luxcloud is a channel centric marketplace. | No | Yes |  | Unknown |
| [LXD Linux Container REST](https://documentation.ubuntu.com/lxd/latest/rest-api/) | LXD Linux Container is a RESTful platform-based API that enables the access and management of... | No | Yes |  | Unknown |
| [Lymbix Sentiment Analysis](https://www.lymbix.com/supportcenter/docs) | Lymbix provides sentiment analysis services for any form of text-based communication. | No | Yes |  | Unknown |
| [Mac Address Lookup](https://macvendors.co/api) | The Mac Address Lookup API provides tools for users to find vendors details based on Mac addresses. | No | Yes |  | Unknown |
| [MAC address vendor lookup](https://macaddress.io/api) | Retrieve vendor details and other information regarding a given MAC address or an OUI | `apiKey` | Yes | Yes | Free |
| [Mac Vendors](https://www.macvendors.com/api) | The Mac Vendors API allows users to programmatically find MAC address vendors. | No | Yes |  | Unknown |
| [MAGE](https://mage.github.io/mage/api) | The Wizcorp MAGE API offers an application and gaming development platform which focuses on... | No | Yes |  | Unknown |
| [makexyz](https://www.makexyz.com/developers) | makexyz is a listing of 3D printers by location. | No | Yes |  | Unknown |
| [Markdown to HTML API](https://apyhub.com/utility/converter-md-html) | This API lets you upload and transform a Markdown file to HTML | `apiKey` | Yes | Yes | Free |
| [Markdown to JSON](https://apyhub.com/utility/converter-markdown-json) | Upload Markdown and get JSON with one API call | `apiKey` | Yes | Yes | Free |
| [Markify](https://www.markify.com/dev/api.html) | Trademark search and watch API Markify offers the world's only global trademark search and... | No | Yes |  | Unknown |
| [MarkLogic](https://developer.marklogic.com) | The MarkLogic API allows developers to interface with the MarkLogic NoSQL database from their own... | No | Yes |  | Unknown |
| [Marky Markdownifier](https://markdownrules.com) | Markdown is a plain text formatting syntax. | No | Yes |  | Unknown |
| [MashSpots](http://www.mashspots.com/api.html) | MashSpots.com is a free service for local search. | No | Yes |  | Unknown |
| [MasterCard ABU](https://mastercard.com) | Mastercard ABU API | No | Yes |  | Unknown |
| [MasterCard Bin Table Listing](https://mastercard.com) | MasterCard Bin Table Listing API | No | Yes |  | Unknown |
| [Mastercard Masterpass QR](https://developer.mastercard.com/apis) | This Mastercard API is a consumer-initiated mobile payment solution that enables you to make... | No | Yes |  | Unknown |
| [Mastercard MATCH](https://mastercard.com) | Helps acquirers identify potentially high-risk merchants before entering to a merchant agreement. | No | Yes |  | Unknown |
| [Mastercard Merchant Identifier API V2](http://not.applicable.com) | API for Merchant Identifier | No | Yes |  | Unknown |
| [Mastercard rePower](https://mastercard.com) | rePower API | No | Yes |  | Unknown |
| [Mastercard Send Person to Merchant](https://mastercard.com) | Send Person to Merchant API | No | Yes |  | Unknown |
| [MasterCard Simplify Commerce Online Payments](https://www.simplify.com/commerce/docs/api/index?api=payments) | The Simplify Commerce API is a secure platform to build payments into an app or website. | No | Yes |  | Unknown |
| [Matroid](https://www.matroid.com/faq#getting-started) | The Matroid API allows developers to access and integrate the functionality of Matroid with other... | No | Yes |  | Unknown |
| [mEDRA](https://www.medra.org/en/ws.htm) | mEDRA is the multilingual European Registration Agency of Digital Object Identifiers (DOI). | No | Yes |  | Unknown |
| [Meeti](http://docs.meeti.apiary.io) | The Meeti REST API allows developers to access and integrate the functionality of Meeti with other... | No | Yes |  | Unknown |
| [MeiliSearch](https://github.com/meilisearch/MeiliSearch) | The MeiliSearch API retrieves search features to find movies and documents. | No | Yes |  | Unknown |
| [Mendix](https://www.mendix.com/application-platform-as-a-service) | [This API is no longer available. Its functions have been split among the following APIs: Mendix... | No | Yes |  | Unknown |
| [Mendix Build](https://docs.mendix.com) | The Mendix Build API allows you to manage deployment packages and create new deployment packages... | No | Yes |  | Unknown |
| [Mendix Client](https://docs.mendix.com) | This API is indirect access to the The Mendix Client SDK. Please reference the SDK tab below. | No | Yes |  | Unknown |
| [Mendix Invite](https://docs.mendix.com) | The Mendix Invite API is an App Service that enables invitation of new users to your AppCloud... | No | Yes |  | Unknown |
| [Mendix Permissions](https://docs.mendix.com) | The Mendix Permissions API is an App Service that allows retrieving the user roles a specific user... | No | Yes |  | Unknown |
| [Mendix Profile](https://docs.mendix.com) | The Mendix Profile API is an App Service that allows your AppCloud applications to retrieve profile... | No | Yes |  | Unknown |
| [Mendix Projects](https://docs.mendix.com/apidocs-mxsdk/apidocs/projects-api/) | The Mendix Projects API allows you to programmatically create a project in your company space and... | No | Yes |  | Unknown |
| [Mendix Team Server](https://docs.mendix.com) | The Mendix Team Server API allows developers to retrieve the information (branches, revisions) of... | No | Yes |  | Unknown |
| [Meraki Dashboard](https://meraki.io/community) | The Cisco Meraki Dashboard API is a modern REST API based on the OpenAPI specification. | `apiKey` | Yes |  | Unknown |
| [Mercedes-benz Car Configurator](https://mercedes-benz.com) | The Car Configurator API offers access to the Mercedes-Benz car configuration functions. | No | Yes |  | Unknown |
| [Mercedes-Benz Connected Vehicle](https://developer.mercedes-benz.com/apis/connected_vehicle_experimental_api/docs) | The experimental Mercedes-Benz Connected Vehicle API offers developers a preview into working with... | No | Yes |  | Unknown |
| [Mercedes-benz Dealer](https://mercedes-benz.com) | The Dealer API provides Dealer search functions. | No | Yes |  | Unknown |
| [MetaCPAN](https://github.com/CPAN-API/cpan-api/blob/master/docs/API-docs.md) | MetaCPAN is a service to search the CPAN repository of Perl modules. | No | Yes |  | Unknown |
| [Metafor Software](http://www.metaforsoftware.com/regex-rest-api-15-2) | Metafor Software is an anomaly detection and predictive analytics company focusing on application... | No | Yes |  | Unknown |
| [MetaGlance](https://eduworks.com/technology/metaglance/metadata-and-web-services) | MetaGlance is a web service used to generate metadata for web pages, documents and text passages. | No | Yes |  | Unknown |
| [METAQRCODE](https://github.com/JENIASoftware/metaqrcode#7-rest-api-descriptors) | The METAQRCODE API provides developers a way to create their own XML metadata and put it inside a... | No | Yes |  | Unknown |
| [Meteor](https://docs.meteor.com/#api) | Meteor is a service that allows users to build web applications. | No | Yes |  | Unknown |
| [Metropolitan Museum of Art Met Collection](https://metmuseum.github.io) | The Metropolitan Museum of Art Met Collection API is the Met’s Open Access datasets that are... | No | Yes |  | Unknown |
| [Micro DB](https://m3o.com/db) | Simple database service | `apiKey` | Yes |  | Unknown |
| [MicroENV](https://microenv.com/) | Fake Rest API for developers | No | Yes |  | Free |
| [MicroPoll](http://www.micropoll.com/developers) | MicroPoll is a web polling service. Micropoll allows users to create and publish web polls, as well... | No | Yes |  | Unknown |
| [Microsoft AutoSuggest Client](https://docs.microsoft.com/en-us/rest/api/) | Autosuggest supplies search terms derived from a root text sent to the service. | `apiKey` | Yes |  | Unknown |
| [Microsoft Azure Cognitive Services Bing Autosuggest](https://docs.microsoft.com/en-us/azure/cognitive-services/Bing-Autosuggest) | The Microsoft Azure Cognitive Services Bing Autosuggest API offers an intelligent autocompletion... | No | Yes |  | Unknown |
| [Microsoft Azure Cognitive Services Bing Custom Search](https://docs.microsoft.com/en-us/azure/cognitive-services/bing-custom-search) | Leverage the Microsoft Azure Cognitive Services Bing Custom Search API to build a search that fits... | No | Yes |  | Unknown |
| [Microsoft Azure Cognitive Services Bing Entity Search](https://learn.microsoft.com/en-us/bing/search-apis/bing-entity-search/reference/endpoints) | This Microsoft Azure Cognitive Services Bing API returns information about entities that Bing... | No | Yes |  | Unknown |
| [Microsoft Azure Cognitive Services Bing Image Search](https://docs.microsoft.com/en-us/azure/cognitive-services/bing-image-search) | The Microsoft Azure Cognitive Services Bing Image Search API returns a list of relevant images from... | No | Yes |  | Unknown |
| [Microsoft Azure Cognitive Services Bing News Search](https://learn.microsoft.com/en-us/previous-versions/bing/search-apis/bing-news-search/release-notes) | The Microsoft Azure Cognitive Services Bing News Search API returns a list of world news from a... | No | Yes |  | Unknown |
| [Microsoft Azure Cognitive Services Bing Video Search](https://docs.microsoft.com/en-us/azure/cognitive-services/bing-video-search/search-the-web) | The Microsoft Azure Cognitive Services Bing Video Search API returns a list of relevant videos from... | No | Yes |  | Unknown |
| [Microsoft Azure Cognitive Services Bing Visual Search](https://docs.microsoft.com/en-us/rest/api/cognitiveservices/bingvisualsearch/images/visualsearch) | The Microsoft Azure Cognitive Services Bing Visual Search API can return insights about a given... | No | Yes |  | Unknown |
| [Microsoft Azure Cognitive Services Bing Web Search](https://docs.microsoft.com/en-us/azure/cognitive-services/bing-web-search) | The Microsoft Azure Cognitive Services Bing Web Search API returns a list of relevant results from... | No | Yes |  | Unknown |
| [Microsoft Azure Cognitive Services Form Recognizer](https://docs.microsoft.com/en-us/azure/cognitive-services/form-recognizer) | The Microsoft Azure Cognitive Services Form Recognizer API provides access to AI-powered document... | No | Yes |  | Unknown |
| [Microsoft Azure IoT Hub](https://docs.microsoft.com/en-us/rest/api/iothub) | The Microsoft Azure IoT Hub simplifies the implementation of IoT Hub’s device, messaging, and job... | No | Yes |  | Unknown |
| [Microsoft Azure Search Management](https://learn.microsoft.com/en-us/rest/api/searchmanagement/) | The Microsoft Azure Search Management API is designed to be used alongside Azure Resource Manager... | No | Yes |  | Unknown |
| [Microsoft Azure Search Service](https://docs.microsoft.com/en-us/rest/api/searchservice/Indexer-operations) | The Azure Search is a Microsoft-provided cloud platform for enriching the search capabilities of... | No | Yes |  | Unknown |
| [Microsoft Azure Service Fabric Resource Manager](https://docs.microsoft.com/en-us/rest/api/servicefabric) | Designed to operate as a distributed systems portal, Azure Service Fabric simplifies the packaging,... | No | Yes |  | Unknown |
| [Microsoft Azure Time Series Insights](https://learn.microsoft.com/en-us/rest/api/time-series-insights/) | The Microsoft Azure Time Series Insights API enables real-time data insights and interactive... | No | Yes |  | Unknown |
| [Microsoft Bing](https://www.bing.com/partners/developers) | Bing API enables developers to embed a flexible and powerful search engine as a custom search... | No | Yes |  | Unknown |
| [Microsoft Custom Search Client](https://docs.microsoft.com/en-us/rest/api/) | The Bing Custom Search API lets you send a search query to Bing and get back search results... | `apiKey` | Yes |  | Unknown |
| [Microsoft Custom Vision Prediction Client](https://docs.microsoft.com/en-us/rest/api/) | Custom Vision Prediction Client API | `apiKey` | Yes |  | Unknown |
| [Microsoft Intune](https://learn.microsoft.com/en-us/graph/intune-concept-overview) | The Microsoft Intune Graph API allows developers to access and integrate the functionality of... | No | Yes |  | Unknown |
| [Microsoft OData Service for namespace microsoft.graph](https://docs.microsoft.com/en-us/rest/api/) | This OData service is located at https://graph.microsoft.com/v1.0 | `apiKey` | Yes |  | Unknown |
| [Microsoft Spell Check Client](https://docs.microsoft.com/en-us/rest/api/) | The Spell Check API - V7 lets you check a text string for spelling and grammar errors. | `apiKey` | Yes |  | Unknown |
| [Mimer SQL Validator](https://developer.mimer.com/services/mimer-sql-validator/) | The Mimer SQL Validator API is a freely accessible public web service that validates SQL statements... | No | Yes |  | Unknown |
| [Mind42](https://mind42.com/developers) | Mind42 is a collaborative browser-based online mind mapping tool. | No | Yes |  | Unknown |
| [MineSkin](https://discord.gg/nzAdvPc) | Client implementations:  Java: https://github. | `apiKey` | Yes |  | Unknown |
| [mingle.io](https://mingle.io/api) | Mingle.io connects developers with various public and private data sets, enabling them to enrich... | No | Yes |  | Unknown |
| [Mintlify](https://docs.mintlify.com) | For programmatically generating documentation for code | `apiKey` | Yes | Yes | Unknown |
| [Minut](https://api.minut.com/v1/docs) | The Minut API retrieves JSON data to monitor neighbors' noises without intrusion, targeted to... | No | Yes |  | Unknown |
| [Miradore](http://onlinesupport.miradore.com/hc/en-us/articles/200897892-About-Miradore-Online-API) | The Miradore Online API is a REST based web service which is intended for integrating Miradore... | No | Yes |  | Unknown |
| [Miri Device Description](http://www.ducis.net/Miri/Ddr) | Miri Device Description is a mobile device description service that returns information and... | No | Yes |  | Unknown |
| [Missatsamtal.se](https://www.missatsamtal.se/api) | Missatsamtal.se is a community-driven database of callers in Sweden. | No | Yes |  | Unknown |
| [Misty Robotics](https://docs.mistyrobotics.com/misty-ii/rest-api/api-reference) | The Misty Robotics API enables developers to send commands to Misty robots using RESTful HTTP... | No | Yes |  | Unknown |
| [MnmlRdr](https://mnmlrdr.com/api) | MnmlRdr is a feed reading service designed to minimize clutter and increase readability. | No | Yes |  | Unknown |
| [mnubo](https://mnubo.com) | mnubo is an analytics platform that aims to improve different kinds of hardware by extracting value... | No | Yes |  | Unknown |
| [Mobile Connect](https://developer.mobileconnect.io/mobile-connect-api) | The Mobile Connect API integrates authentication processes in mobile devices, avoiding to remember... | No | Yes |  | Unknown |
| [Mobile Connect Discovery](https://developer.mobileconnect.io/discovery-api) | The Mobile Connect Discovery API authenticates users and provides details of the home operator. | No | Yes |  | Unknown |
| [Mock Response](http://isssues.com) | Mock Response is a simple API providing mock HTTP responses for developers. | No | Yes |  | Unknown |
| [Mocky](https://designer.mocky.io/) | Mock user defined test JSON for REST API endpoints | No | Yes | Yes | Free |
| [moCloud](https://mocloud.io/apidoc) | The moCloud REST API allows developers to access and integrate the functionality of moCloud with... | No | Yes |  | Unknown |
| [Modifly](https://api.modifly.co) | Modifly is a web service designed to augment the results of an API call on the fly. | No | Yes |  | Unknown |
| [Moesif](https://www.moesif.com/developer-documentation) | The Moesif API allows developers to ingest your API event data, with Key and ID as authentication... | No | Yes |  | Unknown |
| [Moki Total Control](https://developer.moki.com/docs) | The Moki Total Control provides programmatic access for Moki's functionality for devices and device... | No | Yes |  | Unknown |
| [Monaca Cloud](https://en.docs.monaca.io/) | This API provides a browser-based development environment as a service. | No | Yes |  | Unknown |
| [MonkeyLearn](https://monkeylearn.com/docs) | MonkeyLearn is an AI platform that allows you to classify and extract actionable data from raw... | No | Yes |  | Unknown |
| [mooSocial](https://moosocial.com/product/moosocial-rest-api) | The mooSocial API provides a standard interface between a mooSocial community website and outside... | No | Yes |  | Unknown |
| [MotaWord](https://motaword.com) | Use MotaWord API to post and track your translation projects. | `Basic` | Yes |  | Unknown |
| [Motion Shadow](https://www.motionshadow.com/manual/C%20API%20Reference.pdf) | Motion Shadow is a system of wearable flexible fabric with embedded sensors that is used to... | No | Yes |  | Unknown |
| [Moviepilot](https://code.google.com/p/moviepilot-api) | Moviepilot is a site that shows the latest news about movies and recommends movies matching the... | No | Yes |  | Unknown |
| [Mozenda](https://help.mozenda.com/docs/rest-api-introduction) | The concept of More-Zenful-Data describes the better way in which people can acquire, utilize, and... | No | Yes |  | Unknown |
| [Mozilla Battery Status](https://developer.mozilla.org/en-US/docs/Web/API/Battery_Status_API) | (note: according to Mozilla this feature is obsolete, though it may still work in some browsers)... | No | Yes |  | Unknown |
| [Mozilla Device Orientation](https://developer.mozilla.org/en-US/docs/Web/API/Detecting_device_orientation) | The Mozilla Device Orientation API enhances the responsiveness of web-enabled devices to detect the... | No | Yes |  | Unknown |
| [Mozilla DOM](https://developer.mozilla.org/en-US/docs/Web/API/Document_Object_Model) | The Mozilla DOM API is a Document Object Model for HTML and XML documents. | No | Yes |  | Unknown |
| [Mozilla Geolocation](https://developer.mozilla.org/en-US/docs/Web/API/Geolocation/Using_geolocation) | The Mozilla Geolocation supports the integration of navigation properties in web-based applications. | No | Yes |  | Unknown |
| [Mozilla IndexedDB](https://developer.mozilla.org/en-US/docs/Web/API/IndexedDB_API) | The Mozilla IndexedDB supports the development of data storage applications. | No | Yes |  | Unknown |
| [Mozilla Pointer Lock](https://developer.mozilla.org/en-US/docs/Web/API/Pointer_Lock_API) | The Mozilla Pointer Lock API uses the raw pattern of mouse movement over time to define input... | No | Yes |  | Unknown |
| [Mozilla Screen Orientation](https://developer.mozilla.org/en-US/docs/Web/API/CSS_Object_Model/Managing_screen_orientation) | Unlike devices, screens have inbuilt capacity for detecting changes in orientation. | No | Yes |  | Unknown |
| [Mozilla Vibration](https://developer.mozilla.org/en-US/docs/Web/API/Vibration_API) | The Vibration API from Mozilla enables web apps with the ability to access the vibration hardware... | No | Yes |  | Unknown |
| [mtny.mobi](https://sites.google.com/site/mtnymobi2/api) | mtny.mobi is a URL shortening service. mtny. | No | Yes |  | Unknown |
| [murl URL Shortener](https://murl.com/developers) | The murl API creates a short version of a long URL. | No | Yes |  | Unknown |
| [MuslimSalat.com](https://www.muslimsalat.com/api/) | MuslimSalat.com provides location-specific times for the five daily proscribed Muslim prayers. | No | Yes |  | Unknown |
| [Muzzley](https://muzzley.com/documentation) | Muzzley allows developers to integrate applications with an Internet of Things platform which... | No | Yes |  | Unknown |
| [My API Films](https://www.myapifilms.com) | My API Films is an API the provides unofficial access to the IMDB site through a REST search... | No | Yes |  | Unknown |
| [MY IP](https://www.myip.com/api-docs/) | Get IP address information | No | Yes |  | Free |
| [myCloudData](https://myclouddata.net/) | myCloudData API facilitates the development of secure cloud-based data processing and storage... | No | Yes |  | Unknown |
| [mydigitalstructure](http://mydigitalstructure.com) | mydigitalstructure is a web application building service. | No | Yes |  | Unknown |
| [MyFitnessPal](https://www.myfitnesspal.com/api) | MyFitnessPal is a web and mobile application that helps users track their diets and exercise. | No | Yes |  | Unknown |
| [MyMemory](https://mymemory.translated.net/doc/spec.php) | MyMemory is the world's largest Translation Memory created by collecting TMs from the European... | No | Yes |  | Unknown |
| [MyMemory HTS](http://www.translated.net/en/translation-api) | MyMemory is the world's largest Translation Memory created by collecting TMs from the European... | No | Yes |  | Unknown |
| [Myna](https://mynaweb.com/help/api) | Myna is an A/B testing service, a type of tool for testing the effectiveness of proposed website... | No | Yes |  | Unknown |
| [MySEOTool](http://www.myseotool.com/API) | My SEO Tool provides Search Engine Optimization tools including client management, data reporting,... | No | Yes |  | Unknown |
| [MySQL Visual EXPLAIN](https://api.mysqlexplain.com/) | Transform MySQL EXPLAIN output to interactive graphs | No | Yes | Yes | Free |
| [MyTagList](http://www.mytaglist.com/about.html) | The service provides monitoring and status reporting for devices and other objects to which... | No | Yes |  | Unknown |
| [Nabto Cloud](https://nabto.github.io/nabto-cloud-api-doc) | The Nabto Cloud API allows developers to control one or more domains on the Nabto IoT platform. | No | Yes |  | Unknown |
| [NAC Real-time Conversion](http://www.nacgeo.com/nacconversion.asp) | The Natural Area Coding System is a geodetic system that has generated code called Natural Area... | No | Yes |  | Unknown |
| [NaCTeM Termine](http://www.nactem.ac.uk/software/termine/webservice) | Termine is a text mining service provided by The National Centre for Text Mining (NaCTeM). | No | Yes |  | Unknown |
| [Name Toolkit](https://www.mashape.com/nametoolkit/Name-Toolkit) | Name Toolkit's search engine helps users find available domain names by taking keywords and finding... | No | Yes |  | Unknown |
| [NameScan PEP & Sanction](https://namescan.io) | This REST API enables searching through a comprehensive list of Politically Exposed Persons,... | No | Yes |  | Unknown |
| [NameSilo](http://www.namesilo.com/api_reference.php) | NameSilo is a domain registrar service. They provide domain management services and tools to... | No | Yes |  | Unknown |
| [NamSor API v2](http://www.namsor.com/) | NamSor API v2 : enpoints to process personal names (gender, cultural origin or ethnicity) in all... | `apiKey` | Yes |  | Unknown |
| [Nanobox](https://github.com/nanobox-io/nanobox-api-client) | This is the Nanobox V2 API client written in Go (golang). | No | Yes |  | Unknown |
| [nanoSDK Counters](https://nanosdk.com/apis/counters) | The nanoSDK Counters API allows you to create atomic and distributed counters. | No | Yes |  | Unknown |
| [nanoSDK IP Lookup](https://nanosdk.com/apis/ip-lookup) | The nanoSDK IP Lookup API allows you to lookup, validate, and analyze IP addresses. | No | Yes |  | Unknown |
| [nanoSDK JSON Validate](https://nanosdk.com/apis/json-validate) | The nanoSDK JSON Validate API allows you to validate JSON payloads against schemas. | No | Yes |  | Unknown |
| [nanoSDK VAT Rates](https://nanosdk.com/apis/vat-rates) | The nanoSDK VAT Rate API allows you to get EU VAT rates by country. | No | Yes |  | Unknown |
| [nanoSDK VAT Validate](https://nanosdk.com/apis/vat-validate) | The nanoSDK VAT Validate API allows you to validate EU VAT numbers. | No | Yes |  | Unknown |
| [NantHealth eviti Web](https://connect.eviti.com/rest) | The NantHealth eviti Web API provides acces to Healthcare related data that includes;... | No | Yes |  | Unknown |
| [NAOqi Sensors](http://doc.aldebaran.com/1-14/naoqi/index.html#sensors) | The NAOqi Sensors API comes with a list of core modules that allow developers to manage the sensor... | No | Yes |  | Unknown |
| [NASA PO.DAAC Search Dataset](http://podaac.jpl.nasa.gov/ws/search/dataset/index.html) | The Physical Oceanography Distributed Active Archive Center (PO. | No | Yes |  | Unknown |
| [National Cellular Directory People Search](https://www.nationalcellulardirectory.com/happyhoursearch.aspx) | The National Cellular Directory is a people search website that lets users search for a person by... | No | Yes |  | Unknown |
| [Nationalize.io](https://nationalize.io) | Estimate the nationality of a first name | No | Yes | Yes | Free |
| [Nature.com OpenSearch](http://www.nature.com/developers/documentation/api-references/opensearch-api) | Nature.com is the online portal for the Nature Publishing Group, a major publisher of important... | No | Yes |  | Unknown |
| [NBIC Peregrine](https://trac.nbic.nl/data-mining) | Peregrine is an indexing engine, a piece of software that can be used to recognize concepts in... | No | Yes |  | Unknown |
| [NeoSpeech](https://ws.neospeech.com) | The NeoSpeech API allows you to convert text to speech (TTS). | No | Yes |  | Unknown |
| [Nest](https://developer.nest.com/documentation/api-reference) | The Nest API allows users to model a physical home or building as a structure with Nest Learning... | No | Yes |  | Unknown |
| [Nestio](https://developers.nestio.com/api/v2/listings.html) | The Nestio API integrates residential marketing and leasing into web services for rental purposes. | No | Yes |  | Unknown |
| [Nestoria](https://www.nestoria.co.uk/help/api) | Nestoria is a vertical search engine for property in the UK and Spain. | No | Yes |  | Unknown |
| [Netatmo Aircare](https://dev.netatmo.com) | The Netatmo Aircare API allows developers to read data from Netatmo's smart indoor air quality... | No | Yes |  | Unknown |
| [Netatmo Energy](https://dev.netatmo.com/apidocumentation/energy) | The Netatmo Energy API allows developers to access Netatmo's smart thermostat and smart radiator... | No | Yes |  | Unknown |
| [Netatmo Security](https://dev.netatmo.com/apidocumentation/security) | The Netatmo Security API allows developers to get notifications and to retrieve events and... | No | Yes |  | Unknown |
| [Netatmo Weather](https://dev.netatmo.com/apidocumentation/weather) | The Netatmo Weather API allows developers to read data from Netatmo's smart home weather station,... | No | Yes |  | Unknown |
| [Netbeast](https://docs.netbeast.co/chapters/api_reference/index.html) | The Netbeast API is a builder platform for automating the deployment of IoT applications. | No | Yes |  | Unknown |
| [NetBox](https://netbox.dev) | API to access NetBox | `apiKey` | Yes |  | Unknown |
| [Netlify](https://docs.netlify.com/api/get-started/) | Netlify is a hosting service for the programmable web | `OAuth` | Yes |  | Free |
| [Network for Good Donation](https://www.networkforgood.com/corporate-tools) | Network for Good is an organization with the mission to make it as easy to donate and volunteer... | No | Yes |  | Unknown |
| [NetworkCalc](https://networkcalc.com/api/docs) | Network calculators, including subnets, DNS, binary, and security tools | No | Yes | Yes | Free |
| [Neura](https://plus.google.com/communities/108846512971620926237) | Neura is an Internet of Things service that aims to improve engagement with users' communication... | No | Yes |  | Unknown |
| [Neutrino](https://www.neutrinoapi.com) | Neutrino API is a general-purpose Cloud API. | No | Yes |  | Unknown |
| [Neutrino](https://www.neutrinoapi.com/) | The general-purpose API | `apiKey` | Yes |  | Unknown |
| [Neutrino Bad Word Filter](https://neutrinoapi.com/bad-word-filter) | The Neutrino Bad Word Filter API can be used to detect bad words, swear words, and profanity in a... | No | Yes |  | Unknown |
| [Neutrino Bin Lookup](https://www.neutrinoapi.com/api/bin-lookup) | The Neutrino Bin Lookup API can lookup a BIN (Bank Identification Number) or IIN (Issuer... | No | Yes |  | Unknown |
| [Neutrino Code Highlight](https://www.neutrinoapi.com/api/code-highlight) | The Neutrino Code Highlight can take raw source code and convert into HTML with syntax and keyword... | No | Yes |  | Unknown |
| [Neutrino Convert Currency](https://www.neutrinoapi.com/api/convert) | The Neutrino Convert Currency API can be used to convert currency using an up-to-date international... | No | Yes |  | Unknown |
| [Neutrino Email Validate](https://www.neutrinoapi.com/api/email-validate) | The Neutrino Email Validate API can be used to parse, validate and clean an email address. | No | Yes |  | Unknown |
| [Neutrino Geocode Address](https://www.neutrinoapi.com/api/geocode-address) | The Neutrino Geocode Address API can be used to geocode an address, partial address or just the... | No | Yes |  | Unknown |
| [Neutrino Geocode Reverse](https://www.neutrinoapi.com/api/geocode-reverse) | The Neutrino Geocode Reverse API can be used to convert a geographic coordinate (latitude and... | No | Yes |  | Unknown |
| [Neutrino HLR Lookup](https://www.neutrinoapi.com/api/hlr-lookup) | The Neutrino HLR Lookup API can connect to the global mobile cellular network and retrieve the... | No | Yes |  | Unknown |
| [Neutrino Host Reputation](https://www.neutrinoapi.com/api/host-reputation) | The Neutrino Host Reputation API can check the reputation of an IP address or domain against a... | No | Yes |  | Unknown |
| [Neutrino HTML Clean](https://neutrinoapi.com/html-clean) | The Neutrino HTML Clean API can be used to ensure safe HTML, preventing script attacks (XSS) by... | No | Yes |  | Unknown |
| [Neutrino HTML Extract Tags](https://www.neutrinoapi.com/api/html-extract-tags) | The Neutrino HTML Extract Tags can be used to extract specific HTML tag contents or attributes from... | No | Yes |  | Unknown |
| [Neutrino HTML5 Render](https://www.neutrinoapi.com/api/html5-render) | The Neutrino HTML5 Render API can render HTML and HTML5 content to PDF, JPG or PNG. | No | Yes |  | Unknown |
| [Neutrino Image Resize](https://www.neutrinoapi.com/api/image-resize) | The Neutrino Image Resize API can be used to resize an image and output as either JPEG or PNG. | No | Yes |  | Unknown |
| [Neutrino Image Watermark](https://www.neutrinoapi.com/api/image-watermark) | The Neutrino Image Watermark API can be used to watermark one image with another image. | No | Yes |  | Unknown |
| [Neutrino IP Blocklist](https://www.neutrinoapi.com/api/ip-blocklist) | The Neutrino IP Blocklist API can detect potentially malicious or dangerous IP addresses such as... | No | Yes |  | Unknown |
| [Neutrino IP Geolocation](https://www.neutrinoapi.com/api/ip-info/) | The Neutrino IP Geolocation API can be used to get location information about an IP address and do... | No | Yes |  | Unknown |
| [Neutrino IP Probe](https://www.neutrinoapi.com/api/ip-probe/) | The Neutrino IP Probe API can analyze and extract provider information for an IP address. | No | Yes |  | Unknown |
| [Neutrino Phone Playback](https://www.neutrinoapi.com/api/phone-playback) | The Neutrino Phone Playback API can make an automated call to any valid phone number and playback... | No | Yes |  | Unknown |
| [Neutrino Phone Validate](https://www.neutrinoapi.com/api/phone-validate) | The Neutrino Phone Validate API can be used to parse, validate and get location information about a... | No | Yes |  | Unknown |
| [Neutrino Phone Verify](https://www.neutrinoapi.com/api/phone-verify) | The Neutrino Phone Verify API can be used to make an automated call to any valid phone number and... | No | Yes |  | Unknown |
| [Neutrino QR Code](https://www.neutrinoapi.com/api/qr-code) | The Neutrino QR Code API can be used to generate a QR code as a PNG image. | No | Yes |  | Unknown |
| [Neutrino SMS Verify](https://www.neutrinoapi.com/api/sms-verify) | The Neutrino SMS Verify API can be used to send a unique security code to any mobile device via SMS. | No | Yes |  | Unknown |
| [Neutrino URL Info](https://www.neutrinoapi.com/api/url-info) | The Neutrino URL Info can parse, analyze, and retrieve content from the supplied URL. | No | Yes |  | Unknown |
| [Neutrino User Agent Info](https://www.neutrinoapi.com/api/user-agent-info) | The Neutrino User Agent Info API can be used to parse, validate and get detailed user-agent... | No | Yes |  | Unknown |
| [Newslookup.com](https://www.newslookup.com/Feeds) | Newslookup.com is a news search engine, news aggregator, and news provider. Newslookup. | No | Yes |  | Unknown |
| [Nexmo Pricing](https://developer.nexmo.com/) | The API to retrieve pricing information. Please note the Pricing API is rate limited to one request... | No | Yes |  | Unknown |
| [Nexmo Reports](https://developer.nexmo.com/) | The [Reports API](/reports/overview) enables you to request a report of activity for your Vonage... | `Basic` | Yes |  | Unknown |
| [NextDB](https://www.nextdb.net/index.html#docs) | NextDB is a hosted database accessible from JavaScript. | No | Yes |  | Unknown |
| [Nike Materials Sustainability](http://nikemsiapi.nikebetterworld.com) | Nike's Better World initiative looks at how Nike promotes sustainability practices as well as the... | No | Yes |  | Unknown |
| [Nimbix JARVICE](https://jarvice.readthedocs.io/en/latest/api) | Nimbix is a cloud-based supercomputing platform. | No | Yes |  | Unknown |
| [Ninja Blocks](https://ninjablocks.com/pages/api-docs) | Ninja Blocks provides a platform allowing developers to build web and mobile apps that interact... | No | Yes |  | Unknown |
| [NinjaRMM](https://app.ninjarmm.com/apidocs/) | The NinjaRMM API allows you to programmatically query NinjaRMM organizations, devices and alerts. | No | Yes |  | Unknown |
| [NISS](http://nisla05.niss.org/WebServices/webservices.html) | NISS is an independent research institute dedicated to strengthening and serving the national... | No | Yes |  | Unknown |
| [NL.AE iptoc](https://nl.ae/iptocapi) | NL.AE provides free domain registration services using the .nl.ae domain. NL. | No | Yes |  | Unknown |
| [NLPCloud](https://nlpcloud.io) | NLPCloud API | `Bearer` | Yes |  | Unknown |
| [NoiseTube](http://noisetube.net/api_overview) | NoiseTube is a service that allows users to upload an application to their smartphones to collect... | No | Yes |  | Unknown |
| [Nokē](https://noke.com/api-integration) | The Nokē API provides mobile access to doors, gates, storages, units, and containers from a mobile... | No | Yes |  | Unknown |
| [Noonlight](https://docs.noonlight.com) | The Noonlight API allows companies to remotely dispatch emergency services (Police, Fire, EMS) to... | No | Yes |  | Unknown |
| [NoteHub](http://www.notehub.org/api) | NoteHub is a free, anonymous pastebin designed specifically to provide one-off publishing for... | No | Yes |  | Unknown |
| [Notion](https://notion.com) | Hello and welcome!  To make use of this API collection collection as it's written, please duplicate... | No | Yes |  | Unknown |
| [Noxum PDFaaS](https://www.noxum.com/en) | The Noxum PDFaaS API allows developers to generate PDF documents from HTML or XSL-FO... | No | Yes |  | Unknown |
| [npm Registry](https://github.com/npm/registry/blob/master/docs/REGISTRY-API.md) | Query information about your favorite Node.js libraries programmatically | No | Yes |  | Free |
| [NPR Identity Service](https://dev.npr.org) | The entry point to user-specific information | `OAuth` | Yes |  | Unknown |
| [NPR Station Finder Service](https://dev.npr.org) | Allows clients to look up NPR member station information | `OAuth` | Yes |  | Unknown |
| [NS1](https://ns1.com/api) | NS1 is an application traffic management platform. | No | Yes |  | Unknown |
| [NSIDC Web Service Documentation Index](https://nsidc.org) | This API allows programmers to build National Snow and Ice Data Center data and metadata services... | No | No |  | Unknown |
| [NSnitch](https://github.com/tenta-browser/nsnitch) | Find out which name servers are snitching on you. | No | Yes |  | Unknown |
| [Numbeo Cost of Living](https://www.numbeo.com/api/doc.jsp) | The Numbeo Cost of Living API integrates living conditions comparisons between two cities or... | No | Yes |  | Unknown |
| [NumSpy](https://github.com/bhattsameer/numspy) | NumSpy is a public API by which you can find some details of any mobile number in India. | No | Yes |  | Unknown |
| [NuoDB](http://static.nuodb.com/restapi-2.2/index.html) | The NuoDB REST API allows developers to access the functionality of NuoDB with other applications... | No | Yes |  | Unknown |
| [Nuxeo Platform](https://doc.nuxeo.com/nxdoc/rest-api/) | The Nuxeo API integrates platform as a service features, providing document management, DAM, and... | No | Yes |  | Unknown |
| [NYPL Digital Collections](https://api.repo.nypl.org) | NYPL Digital Collections API provides access to portions of the New York Public Library's digitized... | No | Yes |  | Unknown |
| [NYPL What's on the Menu](https://nypl.github.io/menus-api) | The service from New York Public Library provides access to data extracted from a collection of... | No | Yes |  | Unknown |
| [Occuspace](https://occuspace.io/api.html) | The Occuspace API displays how many occupants are in an administrative space. | No | Yes |  | Unknown |
| [OCLC Crosswalk](http://xwalkdemo.oclc.org/api.html) | The OCLC is a nonprofit computer library service and research organization which maintains... | No | Yes |  | Unknown |
| [OCLC WorldCat Discovery](https://oclc.org/developer/develop/web-services/worldcat-discovery-api.en.html) | WorldCat Discovery API allows developers to link their collection data to the WorldCat database. | No | Yes |  | Unknown |
| [OfferDaddy](https://www.offerdaddy.com/docs) | The OfferDaddy API returns monetization features like coupons, surveys, videos, and tasks data to... | No | Yes |  | Unknown |
| [Office 365 Discovery Service](https://msdn.microsoft.com/en-us/library/office/dn776441(v=office.15).aspx#DiscSvc_Token) | This service allows developers using Microsoft Office 365 APIs to browse the API endpoint directory... | No | Yes |  | Unknown |
| [Omega Ricochet](https://www.racowireless.com/omega-ricochet-api) | RacoWireless offers a collection of communication management tools with their DevCloud and Omega... | No | Yes |  | Unknown |
| [One Degree](http://data.1deg.org) | One Degree provides a way to find, manage, and share nonprofit services, that includes reviews and... | No | Yes |  | Unknown |
| [OneDesk](http://www.onedesk.com/developers) | OneDesk's RESTful API provides programmatic access to the OneDesk application. | No | Yes |  | Unknown |
| [OneHourTranslation](https://www.onehourtranslation.com/translation/language-solutions/translation-api) | The human translation API provides direct interface to more than 10000 professional translators and... | No | Yes |  | Unknown |
| [ONEIS](http://docs.oneis.co.uk/dev) | ONEIS is a system for creating and curating collections of information and associated files. | No | Yes |  | Unknown |
| [OneLogin SAML](https://developers.onelogin.com) | This API is a Security Assertion Markup Language (SAML) standard for logging users into... | No | Yes |  | Unknown |
| [OneLogin SCIM](https://developers.onelogin.com/scim/implement-scim-api) | This Rest API is a system for Cross-domain Identity Management (SCIM) that aims to simplify user... | No | Yes |  | Unknown |
| [OneLook Dictionary Search](https://www.onelook.com/?c=about&sel=api) | OneLook Dictionary Search is a search engine for word and phrase definitions. | No | Yes |  | Unknown |
| [OneNote](http://dev.onenote.com) | Microsoft OneNote is a notebook tool, subdivided into sections and pages, where users can jot down... | No | Yes |  | Unknown |
| [OneSignal](https://documentation.onesignal.com/reference/rest-api-overview) | Self-serve customer engagement solution for Push Notifications, Email, SMS & In-App | `apiKey` | Yes |  | Free |
| [OneSignal Push Notifications](http://documentation.onesignal.com) | The OneSignal REST API allows developers to access and integrate the functionality of OneSignal... | No | Yes |  | Unknown |
| [OneSky](http://developer.oneskyapp.com) | OneSky is a translation service for websites, games, and apps. | No | Yes |  | Unknown |
| [OneSkyApp](http://developer.oneskyapp.com) | OneSkyApp is a translation service for mobile and web applications. | No | Yes |  | Unknown |
| [Online Whois Lookup](http://whois.my-addr.com/xml-json-whois-api-web-service.php) | Online Whois Lookup is a service that allows users to input domain name and see a domain's whois... | No | Yes |  | Unknown |
| [Online-Convert.com](http://api.online-convert.com) | Online-Convert is a document conversion tool. | No | Yes |  | Unknown |
| [OnlineNIC](http://www.onlinenic.com/api.php) | OnlineNIC is an internet services provider that offers SSL, domain name, reseller hosting and other... | No | Yes |  | Unknown |
| [Ontimenow](http://www.ontimenow.com/scrum/api) | OnTime Scrum is a project management tool for developers to manage backlog, sprints, and bug... | No | Yes |  | Unknown |
| [OnTop Notification](https://github.com/ontopapp/ontop-push) | The OnTop Notification API allows developers to get notifications on their phones that keep them... | No | Yes |  | Unknown |
| [ontraport](https://api.ontraport.com/doc/) | Ontraport API for marketing automation. | `apiKey` | Yes |  | Unknown |
| [Onuma Planning System](https://www.onuma.com/products/WebServices.php) | The Onuma Planning System (OPS) is web-based Building Information Modeling (BIM) tool. | No | Yes |  | Unknown |
| [Open Access Button](https://github.com/OAButton/API) | The Open Access Button API enables you with the ability to; access papers, via Open Access,... | No | Yes |  | Unknown |
| [Open EAN/GTIN Database](https://opengtindb.org/api.php) | The Open EAN/GTIN barcode number database lets users query barcode numbers online and receive... | No | Yes |  | Unknown |
| [Open Gif](https://github.com/bryanstedman/open-gif-api) | Open Gif is an open source REST API for retrieving the JSON files for animated GIFs located at... | No | Yes |  | Unknown |
| [Open Page Rank](https://www.domcop.com/openpagerank/) | API for calculating and comparing metrics of different websites using Page Rank algorithm | `apiKey` | Yes |  | Free |
| [Open Pinball Database](https://opdb.org/api) | The Open Pinball Database provides searchable data about pinball machines and an API to add pinball... | No | Yes |  | Unknown |
| [OpenACH EasyOFAC](https://easyofac.com/api) | OpenACH is a South Dakota payment processing system provider. | No | Yes |  | Unknown |
| [Openapi-generator OpenAPI Generator Online](https://openapi-generator.tech) | This is an online openapi generator server.  You can find out more at https://github. | No | Yes |  | Unknown |
| [OpenAPIHub](https://hub.openapihub.com/) | The All-in-one API Platform | `apiKey` | Yes |  | Free |
| [openBmap](http://openbmap.org/api/openbmap_api.php5) | The openBmap API returns GPS coordinates and polygon of the considered cellular zone. | No | Yes |  | Unknown |
| [OpenCPU](https://www.opencpu.org/api.html) | OpenCPU provides embedded scientific computing services that are available on public servers or,... | No | Yes |  | Unknown |
| [OpenGraphr](https://opengraphr.com/docs/1.0/overview) | Really simple API to retrieve Open Graph data from an URL | `apiKey` | Yes |  | Unknown |
| [openHAB](https://www.openhab.org/docs/configuration/restdocs.html) | openHAB is a smart home REST interface designed to integrate thousands of devices into one platform. | No | Yes |  | Unknown |
| [OpenStack Bare Metal](https://developer.openstack.org/api-ref/baremetal) | OpenStack is a provider of various open source project components that facilitate the establishment... | No | Yes |  | Unknown |
| [OpenStack Container Infrastructure Management](https://docs.openstack.org/project-install-guide/container-infrastructure-management/newton/get_started.html) | OpenStack is a provider of various open source project components that facilitate the establishment... | No | Yes |  | Unknown |
| [OpenStack Data Processing](https://developer.openstack.org/api-ref/data-processing) | OpenStack’s data processing service, also known as sahara, facilitates the use of processing... | No | Yes |  | Unknown |
| [OpenStack Data Protection](https://developer.openstack.org/api-ref/data-protection-orchestration) | OpenStack is using the Karbor project to advance its data orchestration and metadata protection... | No | Yes |  | Unknown |
| [OpenStack Networking](https://docs.openstack.org/neutron/latest/) | OpenStack is a provider of various open source project components that facilitate the establishment... | No | Yes |  | Unknown |
| [OpenStack Object Storage](https://docs.openstack.org/api-ref/object-store/) | OpenStack is a provider of various open source project components that facilitate the establishment... | No | Yes |  | Unknown |
| [OpenStack Orchestration Service](https://docs.openstack.org/liberty/ko_KR/install-guide-obs/common/get_started_orchestration.html) | OpenStack is a provider of various open source project components that facilitate the establishment... | No | Yes |  | Unknown |
| [OpenStack Shared File Systems](https://docs.openstack.org/api-ref/shared-file-system/) | OpenStack is a provider of various open source project components that facilitate the establishment... | No | Yes |  | Unknown |
| [OpenWater](https://api.secure-platform.com/swagger/index.html) | The OpenWater API enables a cloud-based application and review software platform for collaboration... | No | Yes |  | Unknown |
| [OpenZeppelin](https://docs.openzeppelin.com/test-environment/0.1/api) | OpenZeppelin allows developers to write, deploy and operate decentralized applications. | No | Yes |  | Unknown |
| [Opera Stash](https://dev.opera.com/extensions) | Opera is a software company and provider of the Opera web browser, which runs on a variety of... | No | Yes |  | Unknown |
| [Opsmatic](https://opsmatic.com/app/docs/rest-api) | Opsmatic API provides configuration via REST protocol. | No | Yes |  | Unknown |
| [Optemo Search](http://optemo.com/api) | Optemo is an adaptive search and navigation provider that uses data to continually update and... | No | Yes |  | Unknown |
| [Orange Live Objects](https://developer.orange.com/apis/datavenue/getting-started) | The Orange Live Objects API brings the Internet of Things (IoT) to a whole new level for developers. | No | Yes |  | Unknown |
| [OrgHunter](https://orghunter.com) | Get the latest IRS data and most up to date charity information for your website or application | `apiKey` | No |  | Unknown |
| [OrgHunter Charity](https://charityapi.orghunter.com/) | The OrgHunter Charity API is an interface that allows developers to incorporate real-time search... | No | Yes |  | Unknown |
| [OSF APIv2 Documentation](https://osf.io/support) | OSF APIv2 Documentation API | No | Yes |  | Unknown |
| [Osmosis](https://www.getosmosis.com/api-doc) | Osmosis is a web application that allows users to get project facts and requirements by using... | No | Yes |  | Unknown |
| [Ote-godaddy Aftermarket](https://ote-godaddy.com) | Aftermarket API API | No | Yes |  | Unknown |
| [Ote-godaddy Agreements](https://ote-godaddy.com) | Agreements API API | No | Yes |  | Unknown |
| [Ote-godaddy Certificates](https://ote-godaddy.com) | Certificates API API | No | Yes |  | Unknown |
| [Ote-godaddy Shoppers](https://ote-godaddy.com) | Shoppers API API | No | Yes |  | Unknown |
| [Ote-godaddy Subscriptions](https://ote-godaddy.com) | Subscriptions API API | No | Yes |  | Unknown |
| [Otreeba Open Cannabis](https://api.otreeba.com/swagger) | Otreeba offers standardized cannabis data and normalization for cannabis seed companies, strains,... | No | Yes |  | Unknown |
| [OverDrive Library Availability](https://developer.overdrive.com/apis/library-availability) | OverDrive is an online company that provides users a way to access eBooks and electronic materials... | No | Yes |  | Unknown |
| [OverDrive Search](https://developer.overdrive.com/apis/search) | OverDrive is an online company that provides users a way to access eBooks and electronic materials... | No | Yes |  | Unknown |
| [Oxylabs](https://oxylabs.io/products/serp-api/web) | The Oxylabs API offers real-time SERP functions. | No | Yes |  | Unknown |
| [oyyi](https://oyyi.xyz/docs/1.0) | API for Fake Data, image/video conversion, optimization, pdf optimization and thumbnail generation | No | Yes | Yes | Unknown |
| [packagecloud.io](https://packagecloud.io/docs) | This Rest API is used for automation of common tasks for a combination of metadata, configuration,... | No | Yes |  | Unknown |
| [Packagist](https://packagist.org/apidoc) | The Packagist API allows developers to list packages by organization, search packages by tag,... | No | Yes |  | Unknown |
| [PageCDN](https://pagecdn.com/docs/public-api) | Public API for javascript, css and font libraries on PageCDN | `apiKey` | Yes | Yes | Unknown |
| [Pagify](http://alpha.pagify.io/features) | Pagify is an online tool for designing and generating PDF documents from within the browser. | No | Yes |  | Unknown |
| [Pairaphrase Translation](https://www.pairaphrase.com/translation-api-documentation) | The Pairaphrase Translation API allows developers integrate to professional language translation... | No | Yes |  | Unknown |
| [Pancake](https://pancakeapp.com/faq/pancake-api) | Pancake is an invoicing app that includes online invoicing, project management, time tracking,... | No | Yes |  | Unknown |
| [PandaPay](https://www.pandapay.io/docs) | PandaPay offers a donation platform that features integrated payment gateway, ACH processing,... | No | Yes |  | Unknown |
| [Panopta](https://api2.panopta.com/v2) | Panopta is a monitoring service that checks all of the user's servers once per minute, allowing it... | No | Yes |  | Unknown |
| [Panoptix](https://whatspossible.johnsoncontrols.com/docs/DOC-2194) | Panoptix by Johnson Controls is a platform and an application marketplace for efficient building... | No | Yes |  | Unknown |
| [Parliament Bills](https://www.parliament.uk) | API to get and search for information regarding Bills, their stages, associated amendments and... | No | Yes |  | Unknown |
| [Parliament Commons Votes](https://www.parliament.uk/) | An API that allows querying of Commons Votes data. | No | Yes |  | Unknown |
| [Parliament House of Commons Oral and Written Questions](https://www.parliament.uk/) | An API that allows querying all tabled oral and written questions, and motions for the House of... | No | Yes |  | Unknown |
| [Parrot Flower Power Cloud](https://developer.parrot.com/docs/FlowerPower/) | This API provides access to connect to the Flower Power Cloud, and retrieve your sensors’ data from... | No | Yes |  | Unknown |
| [Parrot Flower Power Sensor Data](http://developer.parrot.com/docs/FlowerPower/#sensor-data-api) | This API provides access to sensor data using the Flower Power Cloud and returns Get Samples for... | No | Yes |  | Unknown |
| [Parrot Sequoia](https://developer.parrot.com/docs/sequoia/) | The Parrot Sequoia RESTful API supports JSON and URI Query String/CRUD formats as requests and JSON... | No | Yes |  | Unknown |
| [Parrot Sequoia Websockets](https://developer.parrot.com/docs/sequoia/#websocket) | The Parrot Sequoia Websockets API allows developers to receive an asynchronous event from the... | No | Yes |  | Unknown |
| [Parse](https://www.parse.com/docs/rest) | Parse offers developers a backend-as-a-service platform for their mobile applications. | No | Yes |  | Unknown |
| [Particle](https://docs.particle.io/photon/api) | The Particle API allows developers to access and integrate the functionality of Particle with other... | No | Yes |  | Unknown |
| [PassKit](https://docs.passkit.io/) | PassKit is a pass and ticket generator for Apple's PassBook. | No | Yes |  | Unknown |
| [Pastebin.com](https://pastebin.com) | Pastebin.com is a website where users can store text for a certain period of time. | No | Yes |  | Unknown |
| [PatientView](https://patientview.org) | The recommended REST API endpoints to be used when integrating with PatientView | No | Yes |  | Unknown |
| [Patreon Platform](https://docs.patreon.com/#introduction) | The Patreon API is a payment platform that supports creators with Patron-only content, Automation... | No | Yes |  | Unknown |
| [Patreon Webhooks](https://docs.patreon.com/#introduction) | The Patreon Webhooks API allows you to receive real-time updates from Patreon servers that will... | No | Yes |  | Unknown |
| [Paymentwall](https://www.paymentwall.com/en/getting-started) | Paymentwall provides a solution for globally monetizing digital goods and services, assisting game... | No | Yes |  | Unknown |
| [PayRun.IO](https://payrun.io) | Open, scableable, transparent payroll API. | No | Yes |  | Unknown |
| [PDF Blocks](https://www.pdfblocks.com/support) | PDF Blocks is a secure, reliable, and fast API to work with PDF documents. | `apiKey` | Yes |  | Unknown |
| [PDF Converter](https://www.convertapi.com) | PDF Converter is a service that allows users to convert documents into PDFs and convert PDFs into... | No | Yes |  | Unknown |
| [Pdfcrowd](https://pdfcrowd.com/html-to-pdf-api) | The API lets users create PDF from web pages or raw HTML code. | No | Yes |  | Unknown |
| [PDFfiller](https://www.pdffiller.com/en/developers) | The PDFfiller API allows users to build applications that interact with PDFfiller over HTTP REST... | No | Yes |  | Unknown |
| [pdflayer](https://pdflayer.com/documentation) | The pdflayer API offers a customizable HTML to PDF conversion system. | No | Yes |  | Unknown |
| [PDFReactor SOAP](https://www.pdfreactor.com/product/webservice/doc/) | The PDFReactor SOAP API available as remote procedure call involves XML protocols to perform... | No | Yes |  | Unknown |
| [pdfshift](https://pdfshift.io/) | Convert any HTML documents to high-fidelity PDF in one single POST request. | No | Yes |  | Unknown |
| [PeakMetrics](https://rapidapi.com/peakmetrics-peakmetrics-default/api/peakmetrics-news) | News articles and public datasets | `apiKey` | Yes |  | Unknown |
| [Pearson Correlation Coefficient](https://pearsoncorrelation.com) | A simple HTTP-based API that can be used to calculate the Pearson Correlation Coefficient between... | No | Yes |  | Unknown |
| [Percy Webhooks](https://docs.percy.io/docs/webhooks) | Percy is a visual review platform designed to provide insights on UI changes during the application... | No | Yes |  | Unknown |
| [Perfecto](https://www.perfecto.io) | The Perfecto API returns XML and JSON formats to implement testing into mobile applications. | No | Yes |  | Unknown |
| [Performant Juxta](https://github.com/performant-software/juxta-service/wiki/API-Documentation) | Juxta is an open-source tool that lets scholars and researchers examine the history of a text from... | No | Yes |  | Unknown |
| [PetRescue](https://www.petrescue.com.au/api/docs) | The PetRescue API allows users to search for pet rescue listings in Australia, list breeds, create... | No | Yes |  | Unknown |
| [PHP Object Generator](http://www.phpobjectgenerator.com/plog/article/106/a-look-at-the-pog-soap-api) | From their site: PHP Object Generator, (POG) is an open source PHP code generator which... | No | Yes |  | Unknown |
| [PHPGraphlib Remote](https://www.ebrueggeman.com/phpgraphlib/remote-api) | PHPGraphLib is a lightweight PHP-based graphing library that creates PHP graphs for incorporation... | No | Yes |  | Unknown |
| [Phrase](https://developers.phrase.com/api/) | PhraseApp provides translation management services for websites and applications that are offered... | No | Yes |  | Unknown |
| [Piano](https://developers.piano.io/analytics/) | The Piano API integrates monetization of digital content into applications. | No | Yes |  | Unknown |
| [Pic Resize](http://www.picresize.com/webmasters.php) | Pic Resize is a web-based image editing service. | No | Yes |  | Unknown |
| [Pictaculous](http://www.pictaculous.com/api) | Pictaculous is a color palette generator service from MailChimps. | No | Yes |  | Unknown |
| [Picturepark](https://picturepark.com/resources/developer-resources) | Picturepark enables organizations to build purpose-specific solutions that help them to better... | No | Yes |  | Unknown |
| [Piloterr](https://www.piloterr.com/) | Piloterr web scraping API handles headless browsers, rotates proxies for you, and offers... | `apiKey` | Yes | Yes | Free |
| [Pimatic REST](https://pimatic.org/guide/api) | The Pimatic API allows developers to perform external scripting on Pimatic or create frontends for... | No | Yes |  | Unknown |
| [Pine](https://pine.blog/api/documentation) | The Pine API provides a way to search the web for content to read, watch, and listen to. | No | Yes |  | Unknown |
| [Pinecone](https://github.com/sigpwned/pinecone-openapi-spec) | Pinecone is a vector database. This is an unofficial, community-managed OpenAPI spec that (should)... | `apiKey` | Yes |  | Unknown |
| [Pingeborg](https://github.com/salendron/Pingeborg/wiki/RESTful-API) | "Project Ingeborg" (pingeb.org) is designed to promote local artists using samples of their work. | No | Yes |  | Unknown |
| [Pinoccio](https://docs.pinocc.io/api.html) | Pinoccio sells battery-powered microcontrollers that allow users to create devices that can... | No | Yes |  | Unknown |
| [PipeDream](https://docs.pipedream.com) | Pipedream is the fastest way to build powerful applications that connect all the services in your... | `OAuth` | Yes |  | Free |
| [Pixfizz](https://www.pixfizz.com) | The Pixfizz API allows developers to integrate with a wide range of options such as payment... | No | Yes |  | Unknown |
| [PLACEHOLD.IT](http://placehold.it) | PLACEHOLD.IT is a web service providing customizable image placeholders. PLACEHOLD. | No | Yes |  | Unknown |
| [Placer](https://docs.placer.ai/reference/get_v1-poi) | The Placer REST API supports the construction of mobile applications that implement location-based... | No | Yes |  | Unknown |
| [PlagSpotter](https://www.plagspotter.com/api) | The service provides online reviews for duplicate content in search engine results. | No | Yes |  | Unknown |
| [Platform of Trust Application](https://api-sandbox.oftrust.net) | The Application API provides means to manage user's applications and perform different operations... | No | Yes |  | Unknown |
| [Platform of Trust Broker](https://api-sandbox.oftrust.net/apis/broker) | The Broker API provides means to connect a service to a connector that will return desired data... | No | Yes |  | Unknown |
| [Pledgeling](https://developer.pledgeling.com) | The Pledgeling API allows you to integrate global charity search and donation processing into your... | No | Yes |  | Unknown |
| [Pledgeling Webhooks](https://developer.pledgeling.com/#webhooks) | This Pledgeling API sends Webhook events that notify your application via a POST request to a URL... | No | Yes |  | Unknown |
| [Plesk Partner](https://docs.plesk.com/en-US/obsidian/partner-api-3.0/introduction-to-key-administrator-partner-api-30.77827/) | The Plesk Partner API enables simple and straightforward Key Administrator integration of partners... | No | Yes |  | Unknown |
| [Plotly](https://plotly.com/python-api-reference/) | Plotly is a collaborative data analysis and graphing tool. | No | Yes |  | Unknown |
| [PlugChain](https://plugchain.com/#/docs) | PlugChain is a cryptocurrency multiplatform that developers may use to create new cryptocurrency... | No | Yes |  | Unknown |
| [Pluralsight](https://app.pluralsight.com/plans/api/reports/docs/users) | This platform service allows you to extract data via the Pluralsight Rest API for Users, Course... | No | Yes |  | Unknown |
| [PocketSmith](https://pocketsmith.com) | The PocketSmith API | `apiKey` | Yes |  | Unknown |
| [POEditor](https://poeditor.com/docs/api) | POEditor is a collaborative web-based software localization tool designed for translators and... | No | Yes |  | Unknown |
| [Poemist](https://www.poemist.com) | Poemist API API | No | Yes |  | Unknown |
| [Pokelog](https://pokelog.com/api) | Pokelog is a personal analytics service that can be used to track almost any kind of metric. | No | Yes |  | Unknown |
| [Polar Bear Farm AirForms](http://polarbearfarm.com/airforms/documentation/api.php) | Polar Bear Farm is a New Zealand based software development that creates native applications for... | No | Yes |  | Unknown |
| [PolicyMap](http://www.policymap.com/your-website.html) | PolicyMap is a service from the non-profit, The Reinvestment Fund, that provides data on... | No | Yes |  | Unknown |
| [Pollfish](https://www.pollfish.com/#/monetize) | Pollfish is a survey and poll creation service. | No | Yes |  | Unknown |
| [PopKey](https://popkey.co/api) | PopKey is an animated GIF keyboard. Use the API to access PopKey's extensive collection of GIFs. | No | Yes |  | Unknown |
| [Populr](http://api.populr.me/v0) | Populr is a platform that allows users to create websites for anything quickly. | No | Yes |  | Unknown |
| [PositionMonitor](https://www.positionmonitor.com/api) | PositionMonitor is an automatic page rank monitoring system. | No | Yes |  | Unknown |
| [Postcode.nl](https://api.postcode.nl/documentation) | Postcode.nl is a large, independent provider of postcode- and geography-related products and... | No | Yes |  | Unknown |
| [Posthook](https://docs.posthook.io) | The Posthook Job Scheduling API allows you to schedule HTTPS requests for specific times. | No | Yes |  | Unknown |
| [Postman](https://www.postman.com/postman/workspace/postman-public-workspace/documentation/12959542-c8142d51-e97c-46b6-bd77-52bb66712c9a) | Tool for testing APIs | `apiKey` | Yes |  | Free |
| [PredictSpring](https://www.predictspring.com/#Solution) | The PredictSpring REST API allows developers to access and integrate the functionality of... | No | Yes |  | Unknown |
| [Predix Time Series](https://www.ge.com/digital/documentation/predix-platforms/tss-overview.html) | The Time Series API offers sensor data management, distribution, and storage. | No | Yes |  | Unknown |
| [Predix Traffic Planning](https://currentbyge.github.io/GE_Current_Documentation/#c_about_intelligent_environments.html) | The Traffic Planning API offers metadata obtained from lighting sensors along public roadways. | No | Yes |  | Unknown |
| [Prerender](https://prerender.io/documentation) | The Prerender API integrates JavaScript rendering features into websites, with the aim to optimize... | No | Yes |  | Unknown |
| [Pressassociation TV](https://pressassociation.io) | Welcome to the API Reference Docs page for the Press Association TV API (v2). | `apiKey` | Yes |  | Unknown |
| [Presstacular](http://www.presstacular.com/index.rwp) | Presstacular is a marketing tool that provides content for IT companies in the form of editable... | No | Yes |  | Unknown |
| [Pretzil](https://pretzil.com/api/v2) | Pretzil is a website, API, and mobile application suite that leverages its cloud-based database to... | No | Yes |  | Unknown |
| [Prior Knowledge](https://www.priorknowledge.com/docs/api) | Prior Knowledge runs Veritable, a predictive database that makes inferences on the data it contains. | No | Yes |  | Unknown |
| [Pro Writing Aid](https://prowritingaid.com/en/App/API) | Pro Writing Aid is an online writing tool that analyzes text and checks for spelling, grammar,... | No | Yes |  | Unknown |
| [Product Hunt GraphQL](https://github.com/producthunt/producthunt-api/wiki) | This Product Hunt API provides access to Product Hunt data via a simple GraphQL interface. | No | Yes |  | Unknown |
| [Project Kenai](https://kenai.com/projects/kenaiapis/pages/Home) | Project Kenai is Sun Microsystem's connected developer destination where developers can host open... | No | Yes |  | Unknown |
| [Prompty Server](https://www.prompty.io/docs/api) | This API allows users to send notifications as well as retrieve other useful information, such as... | No | Yes |  | Unknown |
| [ProofHQ](https://proofhq.centraldesktop.com/api/doc/3567004/w-FrontPage) | ProofHQ is a web based service that helps designers manage design review and approval. | No | Yes |  | Unknown |
| [Proofread Bot](https://proofreadbot.com/api) | Proofread Bot is a free online proofreading tool that checks the grammar, style, and spelling of a... | No | Yes |  | Unknown |
| [Prowl](https://www.prowlapp.com/) | Prowl is a Growl client for the iPhone OS. | No | Yes |  | Unknown |
| [Prowork](http://api.prowork.me) | Prowork is a real-time collaboration service designed for all kinds of projects where team members... | No | Yes |  | Unknown |
| [Proxed AI](https://proxed.ai/) | Secure AI APIs in iOS - No SDK, Just Change Your API URL | `apiKey` | Yes | Yes | Free |
| [ProximaX Sirius Catapult](https://bcdocs.xpxsirius.io/endpoints) | ProximaX enables enterprise-grade distributed and decentralized technologies. | No | Yes |  | Unknown |
| [Proxmox VE](https://pve.proxmox.com/pve-docs/api-viewer/) | API of self-hosted Proxmox VE. Address: https://your. | `apiKey` | Yes |  | Free |
| [ProxyCrawl](https://proxycrawl.com) | Scraping and crawling anticaptcha service | `apiKey` | Yes |  | Free |
| [ProxyKingdom](https://proxykingdom.com) | Rotating Proxy API that produces a working proxy on every request | `apiKey` | Yes | Yes | Free |
| [PSLC DataShop](https://pslcdatashop.org/about/webservices.html#api) | The DataShop is a service of the Pittsburg Science of Learning Center (PSLC). | No | Yes |  | Unknown |
| [Pulseway REST](https://www.pulseway.com/api) | Pulseway provides a RESTful API that monitors up to 5 IT systems for free and more with a... | No | Yes |  | Unknown |
| [PuppetDB Query](https://www.puppet.com/docs/puppetdb/7/api/query/tutorial.html) | The PuppetDB Query API integrates software as a service functionalities for developers and IT teams. | No | Yes |  | Unknown |
| [PushBullet](https://www.pushbullet.com/api) | The PushBullet API allows developers to engage customers through the PushBullet Android application. | No | Yes |  | Unknown |
| [Pusher](https://pusher.com/docs) | Pusher is a simple hosted API for quickly, easily and securely adding realtime bi-directional... | No | Yes |  | Unknown |
| [Pusher Beams](https://pusher.com/beams) | Push notifications for Android & iOS | `apiKey` | Yes |  | Free |
| [Pusher Channels](https://pusher.com/channels) | Realtime features | `apiKey` | Yes |  | Free |
| [PVOutput Service](https://pvoutput.org/help.html#api) | PVOutput is a free service for sharing, evaluating, and comparing photovoltaic solar panel output... | No | Yes |  | Unknown |
| [Pygments](https://pygments.org/) | The service provides syntax highlighting for web applications without Python installed. | No | Yes |  | Unknown |
| [Q-Sensei FeedBooster](https://www.qsensei.com) | Q-Sensei's offers a multi-dimensional searching and indexing technology to help businesses find and... | No | Yes |  | Unknown |
| [QBOS](https://hms.curantissolutions.com/docs/api/qtp_rest_api_toc_v1.cfm?clientid=506764) | The QBOS REST API is for developers who want to integrate QBOS into their application and for... | No | Yes |  | Unknown |
| [Qiita](https://qiita.com/api/v2/docs) | Qiita offers integration with a collaboration and sharing platform. | No | Yes |  | Unknown |
| [Qirina](http://www.qirina.com/api.html) | Qirina is a database that represents a websites’ relations on a mapped out matrix of keywords. | No | Yes |  | Unknown |
| [qmeta search engine](https://api.qmeta.net) | qmeta search engine API is a free, uncensored and unlimited web search engine API. qmeta. | No | Yes |  | Unknown |
| [Qminder](https://www.qminder.com/docs/api/) | Qminder is a mobile queue management service for managing waiting lines with tablets and... | No | Yes |  | Unknown |
| [QR code](https://www.qrtag.net/api/) | Create an easy to read QR code and URL shortener | No | Yes | Yes | Free |
| [QR code Generator](https://docs.openqr.io/) | Static and Dynamic QR code generator with custom and unique QR code design | `apiKey` | Yes |  | Free |
| [QR-Server QR Code](http://qrserver.com/api) | With our QR Code API, you can use RESTful calls to - create QR Codes: No need to register, free of... | No | Yes |  | Unknown |
| [Qrcode Monkey](https://www.qrcode-monkey.com/qr-code-api-with-logo/) | Integrate custom and unique looking QR codes into your system or workflow | No | Yes |  | Free |
| [Qrcode-monkey qrcode monkey](https://www.qrcode-monkey.com/docs/api) | Integrate custom and unique looking QR codes into your system or workflow. | No | Yes |  | Unknown |
| [qrd.by](https://qrd.by/qr-code-api) | Qrd.by is a service that generates QR Codes of any URL and helps users track when, where and from... | No | Yes |  | Unknown |
| [Qrimp](https://developer.qrimp.com/HelpTopics/JavaScript%20API) | The Qrimp API allows you to retrieve data from your Qrimp app and display it in another website. | No | Yes |  | Unknown |
| [Qualtrics](https://qualtrics.com) | Work with Qualtrics surveys, distributions and response events | `apiKey` | Yes |  | Unknown |
| [Quandl](https://docs.quandl.com) | Quandl is a portal to numerical data (especially time-series data) that is stored on the internet. | No | Yes |  | Unknown |
| [QueekyPaint](http://www.queeky.com/tools/api) | Queeky is an online drawing platform that allows users to create animated drawing, watch how others... | No | Yes |  | Unknown |
| [QuestionPro](https://www.questionpro.com/developers) | QuestionPro is an online survey service that allows users to create surveys, collect responses from... | No | Yes |  | Unknown |
| [Quetzal](https://www.quetzal-search.info) | The Quetzal API provides users with research tools that are currently used in the bio-medical... | No | Yes |  | Unknown |
| [Queue-it](https://queue-it.com/developers/rest-api/) | Queue-it is a virtual queuing system for managing website overload during peak times. | No | Yes |  | Unknown |
| [QuickBase](https://help.quickbase.com/api-guide/index.html) | QuickBase is a low-code platform that unifies IT and Business to quickly & easily build, iterate,... | No | Yes |  | Unknown |
| [QuickChart](https://quickchart.io/) | Generate chart and graph images | No | Yes | Yes | Free |
| [QuickChart](https://quickchart.io) | An API to generate charts and QR codes using QuickChart services. | No | Yes |  | Unknown |
| [Quicktate](https://quicktate.com/quicktate/api.php) | The Quicktate API allows you to integrate our audio transcription backend into your applications. | No | Yes |  | Unknown |
| [Rabbitique Glossarium](https://www.rabbitique.com) | Rabbitique is a multilingual dictionary. It contains a vast knowledge about words from any written... | No | Yes |  | Unknown |
| [Ragic](https://www.ragic.com/intl/en/doc-api) | Ragic is a data management solution for teams and companies. | No | Yes |  | Unknown |
| [Rainforest QA](https://docs.rainforestqa.com/ci-integration) | Rainforest QA is a website testing service. | No | Yes |  | Unknown |
| [RainMachine](https://rainmachine.docs.apiary.io/#introduction/allowed-https-requests) | The RainMachine API retrieves weather and forecast data including water zones, restrictions,... | No | Yes |  | Unknown |
| [Rally](https://help.rallydev.com/for-developers) | Rally provides a platform and services for agile application development, focusing on supporting... | No | Yes |  | Unknown |
| [RAMP Content](https://developer.ramp.com/home/api/mediacloud) | The RAMP API allows users of the ramp service to access processed data content and metadata. | No | Yes |  | Unknown |
| [Rancher](https://docs.rancher.com/rancher/v1.2/en/api) | The Rancher API allows developers to access a platform for deploying and managing containers in... | No | Yes |  | Unknown |
| [Random Lovecraft](https://randomlovecraft.com) | Random sentences from the complete works of H.P. Lovecraft. CORS-enabled. | No | Yes |  | Unknown |
| [Random Stuff](https://api-docs.pgamerx.com/) | Can be used to get AI Response, jokes, memes, and much more at lightning-fast speed | `apiKey` | Yes | Yes | Unknown |
| [Randommer](https://randommer.io) | Randommer API API | No | Yes |  | Unknown |
| [RandomProfile](https://randomprofile.com/api-for-developers) | RandomProfile is a profile generation service where users can create profiles for use in testing... | No | Yes |  | Unknown |
| [RandomText.me](https://www.randomtext.me) | RandomText is a tool designers and developers can use to grab dummy text in either Lorem Ipsum or... | No | Yes |  | Unknown |
| [Rapidapi SpellCheckPro](https://rapidapi.com) | SpellCheckPro API | No | Yes |  | Unknown |
| [Ravello](http://www.ravellosystems.com/developers/rest-api/general-request-structure) | Ravello allows application developers to upload their virtual machines (VMs) unchanged from VMware... | No | Yes |  | Unknown |
| [Raygun](https://raygun.com/docs) | Raygun is a service that allows you to track, manage, and report your software errors. | No | Yes |  | Unknown |
| [Raygun Sessions](https://raygun.com/docs) | Raygun is a provider of web and mobile software intelligence solutions spanning the crash... | No | Yes |  | Unknown |
| [RBMTV V5 Media Engine](https://public-api.rbmtv.com) | The RBMTV V5 Media Engine API allows developers to integrate the RBMTV platform's media... | No | Yes |  | Unknown |
| [RChilli](https://www.rchilli.com/index.php/products/b2b-web-api.html) | RChilli is a resume parsing service that is designed to identify key information and determine the... | No | Yes |  | Unknown |
| [Readme API Endpoints](https://readme.io) | Create beautiful product and API documentation with our developer friendly platform. | `Basic` | Yes |  | Unknown |
| [ReadSpeaker speechCloud](https://ws.readspeaker.com/a/wasp/app/4/documentation) | Readspeaker is a text to speech speech service that provides, web reading, form reading, audio... | No | Yes |  | Unknown |
| [RealFaviconGenerator](https://realfavicongenerator.net/api) | RealFaviconGenerator is a service for creating favicons that will work across multiple platforms. | No | Yes |  | Unknown |
| [Realtors Property Resource](https://support.narrpr.com/entries/282292-API-FAQs) | The Realtors Property Resource offers a national database of real estate data covering every parcel... | No | Yes |  | Unknown |
| [RED ALERT](http://redalertsystem.com/unique.php) | RED ALERT is an emergency notification system to send mass notifications via phone, SMS, pager, and... | No | Yes |  | Unknown |
| [Redbooth](https://developer.redbooth.com) | Redbooth is a collaboration and communication platform with a publicly available API with the... | No | Yes |  | Unknown |
| [RedCritter](https://www.redcritterconnecter.com/APIReference.aspx) | RedCritter Apps are created using Microsoft Silverlight and are hosted on the RedCritter cloud... | No | Yes |  | Unknown |
| [Redhat Catalog Inventory](https://redhat.com) | Catalog Inventory | `Basic` | Yes |  | Unknown |
| [RedHat OpenShift](https://www.openshift.com/developers) | The Red Hat OpenShift API gives developers a platform in the cloud to build, test, deploy, and run... | No | Yes |  | Unknown |
| [Redis To Go](https://redistogo.com/documentation/api.html) | Redis To Go is a platform for hosting and managing instances of Redis. | No | Yes |  | Unknown |
| [RediSearch Redis Module](http://redisearch.io) | Redis is a leading enterprise solutions provider. | No | Yes |  | Unknown |
| [Redistats](https://redistats.com/api-docs) | Redistats is a web stats tracking service that collects and processes data in real-time, and allows... | No | Yes |  | Unknown |
| [Refuge Restrooms](https://refugerestrooms.org) | REFUGE is a web application that seeks to provide safe restroom access for transgender, intersex,... | No | Yes |  | Unknown |
| [Rejax](https://rejax.io/) | Reverse AJAX service to notify clients | `apiKey` | Yes | No | Free |
| [Remy Sharp's TinyURL](https://remysharp.com/2007/03/27/tinyurl-javascript-api) | Remy Sharp's TinyURL API is a service that allows users to post URLs to Twitter that are first... | No | Yes |  | Unknown |
| [Render](https://render.com/docs/api) | Lets you programmatically manage your Render services (web apps, APIs, and static sites) including... | `apiKey` | Yes |  | Free |
| [RentPost](https://rentpost.com/pricing) | RentPost is a rental property management platform. | No | Yes |  | Unknown |
| [repl.it Code Evaluation](https://docs.replit.com/extensions/category/api-reference) | The repl.it Code Evaluation API allows developers to run codes in builder applications or browsers. | No | Yes |  | Unknown |
| [ReqRes](https://reqres.in/) | A hosted REST-API ready to respond to your AJAX requests | No | Yes |  | Free |
| [RequestBin](https://requestbin.com/docs) | RequestBin is a service that allows users to collect and analyze HTTP requests to observe and debug... | No | Yes |  | Unknown |
| [Research Data Australia](http://ands.org.au/resource/java-api.html) | The service provides a single, comprehensive point of access for research conducted or sponsored by... | No | Yes |  | Unknown |
| [restdb](https://restdb.io/blog/#category/API) | The restdb API is a RESTful API providing tools for developers in data collection and media... | No | Yes |  | Unknown |
| [RESTfm Web](https://github.com/GoyaPtyLtd/RESTfm) | The RESTfm Web API provides an intuitive Create, Read, Update and Delete (CRUD) web service... | No | Yes |  | Unknown |
| [Rethumb](http://rethumb.com/api) | Rethumb is a simple service that lets users create image thumbnails by accessing a URL. | No | Yes |  | Unknown |
| [Rev.io](https://developers.rev.io) | The Rev.io API provides a way to manage your customers and billing that includes; adding a new... | No | Yes |  | Unknown |
| [Rev.io SOAP](https://developers.rev.io) | The Rev.io SOAP API provides a way to request data from REV. | No | Yes |  | Unknown |
| [Reveal Mobile Audience Insights](http://www.revealmobile.com/documentation) | With Reveal Mobile Mobile Insights API, developers can integrate analytics features into... | No | Yes |  | Unknown |
| [RevenueCat](https://docs.revenuecat.com) | This is indirect access to the RevenueCat web service. Please refer to the corresponding SDK below. | No | Yes |  | Unknown |
| [RevenueCat Webhooks](https://docs.revenuecat.com) | The RevenueCat Webhooks API provides enhanced server-to-server RevenueCat notifications. | No | Yes |  | Unknown |
| [reverb](https://www.reverb-api.com) | reverb | `OAuth` | Yes |  | Unknown |
| [Review Trackers](http://www.reviewtrackers.com/partnerships) | Review Trackers is a Software-as-a-Service business-to-business Web application that tracks and... | No | Yes |  | Unknown |
| [Rigor Monitoring](https://monitoring-api.rigor.com) | Rigor is a real-time performance monitoring service for websites, applications, and APIs. | No | Yes |  | Unknown |
| [Roaring BoardMembers](https://docs.roaring.io) | The service also provides access to information on the Board, General Manager / Managing Director... | No | Yes |  | Unknown |
| [Roaring CreditDecision](https://docs.roaring.io) | With Roaring credit decision API you get an automatic answer to grant a credit or not. | No | Yes |  | Unknown |
| [Robust Links](http://robustlinks.dyndns.org/api) | Robust Links indexes online knowledge repositories such as Wikipedia or the U.S. Census. | No | Yes |  | Unknown |
| [Rock Seven](https://docs.rock7.com/reference) | Rock Seven provides satellite tracking products and IoT devices for government, military, NGOs, and... | No | Yes |  | Unknown |
| [Roistr](https://roistr.com/api_doc) | Roistr is a semantic relevance engine that can analyze information within a text and help users... | No | Yes |  | Unknown |
| [RSS feed to JSON](https://rss-to-json-serverless-api.vercel.app) | Returns RSS feed in JSON format using feed URL | No | Yes | Yes | Unknown |
| [RSS to JSON](https://github.com/ayusharma/RSS-to-JSON) | Returns RSS feed in JSON format using feed URL | No | Yes | Yes | Free |
| [Rss2Json](https://rss2json.com/#rss_url=https%3A%2F%2Fwww.reddit.com%2Fr%2Fgifs.rss) | The Rss2Json API allows developers to convert an RSS feed to JSON by submitting its URL. | No | Yes |  | Unknown |
| [rules.io](https://github.com/iltempo/rulesio) | rules.io is an automation platform. Users can set "rules" that react to certain user and customer... | No | Yes |  | Unknown |
| [Runscope](https://www.runscope.com/docs/api/overview) | Built to support the modern application development lifecycle, Runscope is a suite of developer... | No | Yes |  | Unknown |
| [Runscope](https://runscope.com) | Manage Runscope programmatically. | `OAuth` | Yes |  | Unknown |
| [RushParcel](https://www.rushparcel.com/wp-content/uploads/2017/10/RP-API-SPEC.pdf) | The RushParcel API can access multi-carrier data, real-time quotes, real-time tracking, and address... | No | Yes |  | Unknown |
| [Safe Creative](https://wiki.safecreative.net/wiki/API_Overview) | Safe Creative is an on-line world wide copyright registry, free and open to use. | No | Yes |  | Unknown |
| [SafetyCulture](https://developer.safetyculture.com/) | SafetyCulture is an inspection checklist app for the workplace. | No | Yes |  | Unknown |
| [Saffron Sierra](https://saffrontech.atlassian.net/wiki/display/saffron2/SMB+Documentation+Home) | Saffron Sierra is a developer site for using SaffronMemoryBase(SMB). | No | Yes |  | Unknown |
| [Sajari](https://www.sajari.com/api-documentation) | Sajari offers a powerful site search and recommendation API that enables anyone to add advanced... | No | Yes |  | Unknown |
| [Salesforce Heroku Connect](https://devcenter.heroku.com/articles/herokuconnect-api) | The Heroku Connect API is an application development platform, and is used to exchange data between... | No | Yes |  | Unknown |
| [Salesforce IoT](https://developer.salesforce.com/docs/atlas.en-us.api_iot.meta/api_iot/intro_api_version.htm) | The Salesforce IoT REST API enables you to Get a list of all activities that correlates to matching... | No | Yes |  | Unknown |
| [SalesLoft Platform](https://salesloft.com) | SalesLoft helps transform sales teams into modern sales organizations  - converting more target... | `OAuth` | Yes |  | Unknown |
| [Salsify](https://developers.salsify.com/v1.0/reference#token-based-authentication) | The Salsify API returns data for brands that include content, eCommerce, and products. | No | Yes |  | Unknown |
| [SamEnrico eBook](http://www.samenrico.com/opds1) | SamEnrico sells digital publications and subscriptions. | No | Yes |  | Unknown |
| [Samsara](https://www.samsara.com/api) | The Samsara API returns Internet of Things data in JSON format targeting fleet management, cameras... | No | Yes |  | Unknown |
| [Samsung ARTIK Cloud](https://developer.artik.cloud/documentation) | Samsung ARTIK Cloud is an open data exchange platform designed to bring order to the chaos, break... | No | Yes |  | Unknown |
| [Samsung Galaxy Device](https://developer.samsung.com/galaxy/getting-started) | This is indirect access to this service. Please refer to the corresponding SDK’s below. | No | Yes |  | Unknown |
| [Samsung Smart View](https://developer.samsung.com/tv/develop/extension-libraries/smart-view-sdk/api-references) | The Samsung Smart View API allows you to communicate and control your Samsung Smart TV plus develop... | No | Yes |  | Unknown |
| [Samsung SmartThings](https://developer.smartthings.com/docs/api/public/) | The Samsung SmartThings API allows developers to manage and integrate with IoT devices using the... | No | Yes |  | Unknown |
| [Saplo Text Analysis](https://saplo.com/api) | From website: Saplo is a Swedish company based on high profile academic research on semantic... | No | Yes |  | Unknown |
| [Sapo Auto Search](https://store.services.sapo.pt/en/Catalog/search) | SAPO is a Portuguese Internet service provider whose main web site acts as a web portal featuring a... | No | Yes |  | Unknown |
| [Sapo Development](https://store.services.sapo.pt/en/Catalog/development) | SAPO is a Portuguese Internet service provider whose main web site acts as a web portal featuring a... | No | Yes |  | Unknown |
| [Sapo PunyURL](https://store.services.sapo.pt/en/Catalog/utility/free-api-puny-url) | SAPO is a Portuguese Internet service provider whose main web site acts as a web portal featuring a... | No | Yes |  | Unknown |
| [Sapo Tags](https://ajuda.sapo.pt/api-63441) | SAPO is a Portuguese Internet service provider whose main web site acts as a web portal featuring a... | No | Yes |  | Unknown |
| [SavePage.io](https://www.savepage.io) | A free, RESTful API used to screenshot any desktop, or mobile website | `apiKey` | Yes | Yes | Unknown |
| [Saygent](https://saygent.com/api/v1) | Saygent is an in-application feedback service. | No | Yes |  | Unknown |
| [Scanbuy ScanLife](http://www.scanlife.com/developer-tools) | Scanbuy is a global provider of mobile barcode solutions that make use of camera phones. | No | Yes |  | Unknown |
| [Scanova QR Code Generation](https://api.scanova.io/static-docs/?url=/static-api-docs) | The Scanova QR Code Generation API can be used to generate custom scannable codes. | No | Yes |  | Unknown |
| [Scorocode](https://scorocode.github.io/scorocode-docs-en) | The Scorocode API offers a cloud based backend that features user and session management, data... | No | Yes |  | Unknown |
| [Scrape.it](http://scrape.it) | Scrape.it is a screen scraping service designed to allows users to pull information from websites... | No | Yes |  | Unknown |
| [ScrapeLogo](http://scrapelogo.com) | ScrapeLogo is a company logo scraping service that allows you to automatically add company logos to... | No | Yes |  | Unknown |
| [ScrapeNinja](https://scrapeninja.net) | Scraping API with Chrome fingerprint and residential proxies | `apiKey` | Yes |  | Free |
| [ScraperApi](https://www.scraperapi.com) | Easily build scalable web scrapers | `apiKey` | Yes |  | Free |
| [scraperBox](https://scraperbox.com/) | Undetectable web scraping API | `apiKey` | Yes | Yes | Free |
| [scrapestack](https://scrapestack.com/documentation) | The scrapestack API was built to offer a free, real-time scraping and proxy REST API, handling... | `apiKey` | Yes |  | Unknown |
| [Scrapfly](https://scrapfly.io) | Scrapfly is an enterprise-grade solution providing Web Scraping API that aims to simplify the... | `apiKey` | Yes | No | Free |
| [ScrapingAnt](https://scrapingant.com) | Headless Chrome scraping with a simple API | `apiKey` | Yes |  | Free |
| [ScrapingDog](https://www.scrapingdog.com/) | Proxy API for Web scraping | `apiKey` | Yes |  | Free |
| [Scrapinghub](http://doc.scrapinghub.com/api.html) | Scrapinghub provides users with a variety of web crawling and data processing services. | No | Yes |  | Unknown |
| [Screenhero](https://screenhero.com/features.html) | Screenhero is a collaborative screen sharing application. | No | Yes |  | Unknown |
| [Screenleap](https://www.screenleap.com/api) | Screenleap is a web-based service that enables users to share their computer screens with others. | No | Yes |  | Unknown |
| [Screenshot](https://www.abstractapi.com/website-screenshot-api) | Take programmatic screenshots of web pages from any website | `apiKey` | Yes | Yes | Unknown |
| [Screenshot Scout](https://screenshotscout.com/) | Screenshot API for developers that captures any URL in one HTTP request with predictable output | `apiKey` | Yes |  | Unknown |
| [ScreenshotAPI.net](https://screenshotapi.net/) | Create pixel-perfect website screenshots | `apiKey` | Yes | Yes | Free |
| [Screenshotbase](https://screenshotbase.com/) | Screenshot API, 1000 free requests per month | `apiKey` | Yes | Yes | Free |
| [ScreenshotOne.com](https://screenshotone.com/) | Convert URLs, HTML, or Markdown into PNG, JPEG, WebP, or PDF with a simple screenshot API | `apiKey` | Yes | Yes | Free |
| [ScreenSteps Live](https://www.screensteps.com) | ScreenSteps Live gives you everything you need to create visual knowledge base. | No | Yes |  | Unknown |
| [scriptr.io](https://www.scriptr.io) | The Scriptr.io API brings developers a wealth of tools in back-end services. Scriptr. | No | Yes |  | Unknown |
| [Scrnify](https://scrnify.com/docs) | Screenshot and video capture API to transform any URL into high-quality images and recordings | `apiKey` | Yes | Yes | Free |
| [Scrumy](http://apidoc.scrumy.com/wiki/show/REST+API) | Scrumy is a project management tool loosely based on the agile development methodology, Scrum. | No | Yes |  | Unknown |
| [SDL BeGlobal](https://www.beglobal.com/developers/api-documentation) | SDL BeGlobal is an online translation platform combining machine and human translation services. | No | Yes |  | Unknown |
| [SDL Language Cloud Translation](https://eu.cloud.trados.com/lc/api-docs/) | SDL is an industry leader in translation and related technology, and provides customer experience... | No | Yes |  | Unknown |
| [SearchApi](https://www.searchapi.io/) | Real-Time Google SERP API | `apiKey` | Yes | No | Free |
| [SearchBug Find Name and Phone Number from Address](https://www.searchbug.com/api/reverse-address.aspx) | With SearchBug Find Name and Phone Number from Address, users can identify data for people and... | No | Yes |  | Unknown |
| [Searchify](http://www.searchify.com) | Searchify is a hosted search engine that lets users add full-text search to their application,... | No | Yes |  | Unknown |
| [secured signing digital signature api](https://securedsigning.com/developer/api-documentation) | The Secured Signing REST-based, JSON API allows you to add PKI based digital signing capabilities... | `OAuth` | Yes |  | Unknown |
| [Select.Pdf Online](https://selectpdf.com/html-to-pdf-api) | The SelectPdf Online REST API allows developers to access and integrate the functionality of... | No | Yes |  | Unknown |
| [Semantic Juice](https://www.semanticjuice.com/sj-api) | The Semantic Juice API enables developers to query a database of niche web pages and access some of... | No | Yes |  | Unknown |
| [Semantic Research Semantica](https://www.semanticresearch.com/platform) | Semantic Research is a software company specializing in products that can create, view, store and... | No | Yes |  | Unknown |
| [SemanticHacker](https://textwise.com/api) | The SemanticHacker API generates Semantic Signatures�. | No | Yes |  | Unknown |
| [SEMrush](http://www.semrush.com/api.html) | SEMrush creates software products for search and marketing professionals. | No | Yes |  | Unknown |
| [Sencha](https://docs.sencha.io/current/index.html#!/api/Ext.io.Controller) | Sencha is a backend-as-a-service (BAAS) provider for mobile applications. | No | Yes |  | Unknown |
| [Sense360](https://www.sense360.com/docs.html) | The Sense360 API allows developers to access and integrate the functionality of Sense360 with other... | No | Yes |  | Unknown |
| [Sensebot](http://www.sensebot.net) | Sensebot Semantic Cloud API features extraction of semantic concepts from a page; creating... | No | Yes |  | Unknown |
| [Sensorberg](https://developer.sensorberg.com) | Sensorberg is an IoT systems provider based in Germany. | No | Yes |  | Unknown |
| [Sensorbis](https://www.sensorbis.cloud/docs/en-us/help) | The Sensorbis API manages data of devices, sensors, and channels of Sensorbis, a cloud system to... | No | Yes |  | Unknown |
| [SensorCloud](https://www.sensorcloud.com/features/open-data-api) | SensorCloud is a data storage, management, and visualization platform. | No | Yes |  | Unknown |
| [Sent.dm](https://sent.dm) | Sent is a unified API for messaging across SMS and apps like WhatsApp | `apiKey` | Yes | Yes | Free |
| [Sentiment Analysis Online](http://www.sentimentanalysisonline.com/page/documentation) | Sentiment Analysis Online is a free web service able to determine the sentiment, or tone, of a... | No | Yes |  | Unknown |
| [Senvol Database](http://senvol.com/api) | The Senvol Database is an industrial additive manufacturing machines and materials database. | No | Yes |  | Unknown |
| [SEO Tags Generator](https://apyhub.com/utility/sharpapi-generate-seo-tags) | The Generate SEO Tags API generates all the most important META tags based on any content | `apiKey` | Yes | Yes | Free |
| [SEO4Ajax Authenticated](https://www.seo4ajax.com/docs/authenticated-api) | The SEO4Ajax Authenticated API allows developers to integrate JavaScript rendering features into... | No | Yes |  | Unknown |
| [SEO4Ajax Public](https://www.seo4ajax.com/docs/public-api) | The SEO4Ajax Public API allows users to retrieve captures and sitemaps of their sites. | No | Yes |  | Unknown |
| [Seobility SEO Check](https://www.seobility.net/static/api/documentation.html) | The SEO Check API supports JSON format and can be authenticated with API Key. | No | Yes |  | Unknown |
| [Seobility TF*IDF Tool](https://www.seobility.net/static/api/documentation.html) | The TF*IDF API in REST architecture supports JSON format and can be authenticated through an API... | No | Yes |  | Unknown |
| [SEOmoz](https://moz.com/products/api) | SEOmoz provides companies around the world with consulting, Internet marketing and search engine... | No | Yes |  | Unknown |
| [Serendipify.Me](http://serendipify.me/api) | Serendipify.Me makes it easy for your mobile app's users to find interesting connections amongst... | No | Yes |  | Unknown |
| [Serialif Color](https://color.serialif.com/) | Color conversion, complementary, grayscale and contrasted text | No | Yes | No | Free |
| [Serials Solutions Summon Availability](https://api.summon.serialssolutions.com/help/api/availability) | Serials Solutions Summon Availability API allows developers to request for and retrieve catalog... | No | Yes |  | Unknown |
| [Serials Solutions Summon Search](https://api.summon.serialssolutions.com/help/api/search) | Serials Solutions Summon Search API provides developers a service that exposes all of the search... | No | Yes |  | Unknown |
| [Sermon Browser](https://www.sermonbrowser.com/forum/sermon-browser-support/xml-bible-web-service-api) | The service provides lookup access to texts from the Judeo-Christian Bible from multiple versions... | No | Yes |  | Unknown |
| [Serp](https://serpapi.com) | The Serp API allows developers to access and integrate real Google search results with other... | No | Yes |  | Unknown |
| [SERP Rank Checker](https://apyhub.com/utility/serp-rank) | Check realtime Google SERP Rank of any keywords | `apiKey` | Yes | Yes | Free |
| [SerpApi - Search](https://serpapi.com/) | SerpApi's Search API makes it easy and fast to scrape Google and other search engines | `apiKey` | Yes | No | Free |
| [serpstack](https://serpstack.com/) | Real-Time & Accurate Google Search Results API | `apiKey` | Yes | Yes | Unknown |
| [Serpstat](https://api-docs.serpstat.com/docs/serpstat-public-api/jenasqbwtxdlr-introduction-to-serpstat-api) | Serpstat is a website development company that focuses on SEO and analytics. | No | Yes |  | Unknown |
| [SerpWow](https://serpwow.com/docs) | SerpWow is a robust, realtime API to return Google Search Results returning easy to understand JSON... | No | Yes |  | Unknown |
| [ServerPilot](https://github.com/ServerPilot/API) | The ServerPilot API allows developers to manage servers, system users, and databases using HTTPS... | No | Yes |  | Unknown |
| [Service Objects DOTS Address Geocode International](https://docs.serviceobjects.com/display/devguide/AGI+-+REST) | Service Objects DOTS Address Geocode International provides latitude, longitude and metadata for... | No | Yes |  | Unknown |
| [Shadify](https://github.com/cheatsnake/shadify) | Service for generating data and executing logic to create various games and puzzles | No | Yes | Yes | Free |
| [Shared Workforce](http://www.sharedworkforce.com/docs/rest) | Shared Workforce operates on the idea that not all work should be automated, making on-demand human... | No | Yes |  | Unknown |
| [Sheet.Best](https://sheet.best) | The Sheet.Best API allows Google Sheet conversions into RESTful APIs. Sheet. | No | Yes |  | Unknown |
| [Sheet2API](https://sheet2api.com/) | Easy Google Sheets and Excel Online API | `apiKey` | Yes |  | Free |
| [SheetDB](https://sheetdb.io/documentation) | SheetDB allows to use Google Spreadsheet as a RESTful API. | No | Yes |  | Unknown |
| [Sheetsu](https://sheetsu.com/) | Easy google sheets integration | `apiKey` | Yes |  | Free |
| [ShepHertz App42 Cloud](http://api.shephertz.com) | ShepHertz Technologies App42 Cloud is a RESTful API service built to support app development... | No | Yes |  | Unknown |
| [ShepHertz App42 Cloud Review/Rating](http://api.shephertz.com/apis/review_rating.php) | The ShepHertz App42 Cloud Review/Rating API allows developers to create review and rating on their... | No | Yes |  | Unknown |
| [shipstation](https://shipstation.com) | Polls is a simple API allowing consumers to view polls and vote in them. | No | Yes |  | Unknown |
| [shortr](http://shortr.info/api.php) | Shortr is a URL shortening service. The API allows developers to create custom or random urls via a... | No | Yes |  | Unknown |
| [SHOUTCLOUD](http://shoutcloud.io/) | ALL-CAPS AS A SERVICE | No | No |  | Unknown |
| [Shrib](http://api.shrib.com) | Shrib is an online notepad that lets users store and retrieve notes. | No | Yes |  | Unknown |
| [Shrtcode](https://shrtco.de/docs) | URl Shortener with multiple Domains | No | Yes | Yes | Unknown |
| [Sifter](https://sifterapp.com/developer) | Sifter is a bug and issue tracking platform. | No | Yes |  | Unknown |
| [Simperium](https://api.simperium.com) | Simperium is a data -moving layer for developers. | No | Yes |  | Unknown |
| [simPRO RPC](https://api.simpro.co/packages/Default.html) | The simPRO RPC API provides a way to integrate with simPRO and third party applications. | No | Yes |  | Unknown |
| [Sinao](https://sinao.app) | Sinao API for account management, apps administration and network exploration | `Basic` | Yes |  | Unknown |
| [Sindice](https://sindice.com/developers/api) | The Sindice API provides programmatic access to its semantic search capabilities. | No | Yes |  | Unknown |
| [Sinric Pro](https://apidocs.sinric.pro) | Sinric Pro enables developers to integrate IoT development boards (such as the RaspberryPi) with... | No | Yes |  | Unknown |
| [Sixgill Sense](https://docs.sixgill.com/apis/sense-api) | Sixgill offers sensor data services for unified processing of sensor data. | No | Yes |  | Unknown |
| [Skate Ipsum](https://skateipsum.com) | Skate Ipsum is a lorem ipsum tool that generates skateboarding themed placeholder text. | No | Yes |  | Unknown |
| [Skyhook Personas](http://resources.skyhookwireless.com/wiki/type/documentation/skyhook-context/personas-api/3997873) | The Skyhook Personas API allows developers to send mobile data to Skyhook in order to create... | No | Yes |  | Unknown |
| [SkyWay JavaScript](https://nttcom.github.io/skyway/en/documentation.html) | The SkyWay API available in English and Japanese languages, allows to develop real time... | No | Yes |  | Unknown |
| [Slack SCIM](https://api.slack.com/scim) | The Slack SCIM API provides tools for use by SSO partners to help provision and manage user... | No | Yes |  | Unknown |
| [Slack Web](https://api.slack.com/web) | Slack is a tool for managing team communications. | No | Yes |  | Unknown |
| [SlashDB](https://www.slashdb.com) | SlashDB automatically turns databases into online resource so their content becomes accessible to... | No | Yes |  | Unknown |
| [SlideRoom API V2](https://slideroom.com) | SlideRoom provides a RESTful API for exporting data out of your organizations SlideRoom account. | No | Yes |  | Unknown |
| [Smappee](https://smappee.atlassian.net/wiki/spaces/DEVAPI/overview) | The Smappee API allows developers to monitor Internet of Things device data in order to manage... | No | Yes |  | Unknown |
| [smart-me](https://smart-me.com) | With the smart-me REST API you get Access to all your devices in the smart-me Cloud and you can add... | `Basic` | Yes |  | Unknown |
| [SmartBear LoadNinja](https://support.smartbear.com/loadninja/docs/index.html) | The SmartBear LoadNinja REST API allows you to access, manage, and interact with LoadNinja items... | No | Yes |  | Unknown |
| [SmartBear Ready](https://support.smartbear.com/readyapi/docs/index.html) | The SmartBear Ready API is a TestServer that is a REST based API testing platform to submit JSON... | No | Yes |  | Unknown |
| [SmartQ KeyServ](https://keyserv.solutions) | KeyServ is a subsciptions and warranty tracking systems tool for the IoT generation. | No | Yes |  | Unknown |
| [Smartwaiver](https://api.smartwaiver.com/docs/v4/) | Smartwaiver offers custom digital waiver solutions with an array of features including photo... | No | Yes |  | Unknown |
| [Smartwaiver Webhooks](https://support.smartwaiver.com/hc/en-us/articles/115015595207) | Smartwaiver Webhooks enables real-time HTTP POST notifications after a smart waiver is submitted. | No | Yes |  | Unknown |
| [SMS.To](https://sms.to/sms-api#) | The SMS.to API is available by request by entering an email address. SMS. | No | Yes |  | Unknown |
| [SNAP PAC REST](https://developer.opto22.com/static/generated/pac-rest-api/swagger-ui/index.html) | A RESTful API to Opto 22 industrial programmable automation controllers (PACs) to enable rapid... | No | Yes |  | Unknown |
| [Snipt](https://github.com/nicksergeant/snipt/wiki/API-Docs) | Snipt is a tool for developers and non developers alike. | No | Yes |  | Unknown |
| [SOCH](http://www.ksamsok.se/in-english/api) | The service aggregates databases of cultural resources in Sweden, such as museums and objects in... | No | Yes |  | Unknown |
| [Social Mention](https://code.google.com/p/socialmention-api/wiki/APIDocumentation) | Social Mention is a social media search and analysis platform that aggregates user generated... | No | Yes |  | Unknown |
| [Sonar](https://github.com/Cgboal/SonarSearch) | Project Sonar DNS Enumeration API | No | Yes | Yes | Free |
| [SonarQube](https://sonarcloud.io/web_api) | SonarQube REST APIs to detect bugs, code smells & security vulnerabilities | `OAuth` | Yes |  | Free |
| [Sonatype Nexus](https://docs.sonatype.com/login.action;jsessionid=98CFE40847D074097CBFE699C44D919B?os_destination=/display/Nx/Nexus%2BRest%2BAPI) | Sonatype is an open source community focused on creating better tools for developers. | No | Yes |  | Unknown |
| [Sonos](https://developer.sonos.com/reference) | Sonos is the wireless Home Sound System that fills as many rooms as you want with great-sounding... | No | Yes |  | Unknown |
| [Sony aibo Web](https://developer.aibo.com/us/docs) | The Sony aibo Web service allows user to programmatically access aibo functionalities to perform... | No | Yes |  | Unknown |
| [Sourcegraph](https://about.sourcegraph.com/docs/server/api) | The Sourcegraph API allows developers to find code from a server, using intelligence search. | No | Yes |  | Unknown |
| [Space](http://spaceapi.net) | Hackerspaces are community-operated physical places where people can meet and work on their... | No | Yes |  | Unknown |
| [Space Bunny](http://www.spacebunny.io) | Space Bunny is an Internet of Things platform that can be used to monitor live streams, and to... | No | Yes |  | Unknown |
| [Spark](http://sparkplatform.com/docs/overview/api) | Spark Platform gives developers a way to connect with Multiple Listing Services (MLS) to provide... | No | Yes |  | Unknown |
| [Sparkwise](https://code.google.com/p/sparkwise/source/browse) | Sparkwise is a data visualization and metrics service for social media and website engagement. | No | Yes |  | Unknown |
| [SpeakLike Translation](http://www.speaklike.com/access-professional-translation-via-api) | SpeakLike provides translation-as-a-service, with humans performing the translation from one... | No | Yes |  | Unknown |
| [Speca](https://speca.io/speca/speca-public-api) | The Speca API allows developers to create and document an API programmatically. | No | Yes |  | Unknown |
| [SpeedOf.Me](http://speedof.me/api.html) | SpeedOf.Me is an internet speed testing service written in HTML5 rather than Flash or Java. | No | Yes |  | Unknown |
| [Spell Out](http://spellout.org/api) | Spell Out is a voice procedural alphabet translation tool to aid users in spelling words over the... | No | Yes |  | Unknown |
| [Sphere Engine Compilers](https://sphere-engine.com/documentation/se-compilers) | The Sphere Engine Compilers API offers a way to compile and run source code in a third-party... | No | Yes |  | Unknown |
| [Sphere Engine Problems](https://sphere-engine.com/documentation/se-problems) | The Sphere Engine Problems API allows the management of sets of programming tasks. | No | Yes |  | Unknown |
| [SpinnerChief](http://developer.spinnerchief.com/API_Document.aspx) | SpinnerChief is designed to generate unique articles to provide content for websites and increase... | No | Yes |  | Unknown |
| [SpinVox](http://create.spinvox.com/index.php?pageid=0) | SpinVox captures spoken messages and cleverly converts them into text. | No | Yes |  | Unknown |
| [SplashAPI](https://prod-api.splashthat.com/docs) | The SplashAPI allows users open access to events and marketing data. | No | Yes |  | Unknown |
| [Split](https://docs.split.io/reference) | The Split API is an application deployment platform that offers control over software rollouts with... | No | Yes |  | Unknown |
| [SplogSpot](https://splogspot.com/pages/api_help) | From their site: The SplogSpot API enables you to integrate the power of SplogSpot database into... | No | Yes |  | Unknown |
| [Spott](https://rapidapi.com/Spott/api/spott/details) | The Spott API provides tools for applications to search for cities, countries and administrative... | No | Yes |  | Unknown |
| [SPP CROW](https://www.spp.org/section.asp?pageID=156) | The service provides notifications of planned and unplanned maintenance outages across the... | No | Yes |  | Unknown |
| [SpringSense Meaning Detection](http://springsense.com/api) | The fastest and most accurate semantic Meaning Recognition (Word Sense Disambiguation / Detection)... | No | Yes |  | Unknown |
| [Sprylogics](http://dev.sprylogics.com/developers-support) | Sprylogics is a mobile solutions provider. | No | Yes |  | Unknown |
| [SpyFu AdHistory](https://www.spyfu.com/api/docs/ad-history) | The SpyFu AdHistory API returns data in JSON format with Google AdWords history for a website by... | No | Yes |  | Unknown |
| [SpyFu Core](https://www.spyfu.com/api/docs/core) | The SpyFu Core API searches for a competitor, downloads their keywords, gets stats like Ad Budget... | No | Yes |  | Unknown |
| [SpyFu Leads](https://www.spyfu.com/api/docs/leads) | The SpyFu Leads API creates a targeted list of domains by location, industry, adword budget, search... | No | Yes |  | Unknown |
| [SpyFu Project Manager](https://www.spyfu.com/api/docs/project-manager) | The SpyFu Project Manager API manages links and contacts for a domain, and organize custom keyword... | No | Yes |  | Unknown |
| [SpyFu URL](https://www.spyfu.com/api/docs/url) | The SpyFu URL API returns data with an URL search, a host, a path, and a page. | No | Yes |  | Unknown |
| [SpyFu Weekly Tracking](https://www.spyfu.com/api/docs/weekly-tracking) | The SpyFu Weekly Tracking API gets a list of groups by name, gets a list of groups by domain, gets... | No | Yes |  | Unknown |
| [SQLable](https://sqlable.com/csv-to-jsonl/) | CSV to JSONL conversion API | No | Yes | Yes | Free |
| [SQLify](https://sqlify.io/api/docs) | SQLify adds data conversion to any third-party application. | No | Yes |  | Unknown |
| [Squareup Square Connect](https://squareup.com/developers) | Client library for accessing the Square Connect APIs | `OAuth` | Yes |  | Unknown |
| [Srch.io](https://api.srch.io/api/v1) | Srch.io is a website of search tools that allows users to add search tools into third-party... | No | Yes |  | Unknown |
| [SSW Australian Postcode](https://www.ssw.com.au/ssw/WebServices/PostCode/Default.aspx) | The SSW Australian Postcode API is a public web service that provides a quick and centralized... | No | Yes |  | Unknown |
| [Stack Overflow](https://stackapps.com) | Stack Overflow is a collaboratively edited question and answer site for programmers. | No | Yes |  | Unknown |
| [Stackery](https://docs.stackery.io) | The Stackery REST API allows developers to access and integrate the functionality of Stackery with... | No | Yes |  | Unknown |
| [StackExchange](https://api.stackexchange.com/) | Q&A forum for developers | `OAuth` | Yes |  | Free |
| [Stackify](https://github.com/stackify/stackify-api) | The Stackify API allows users to access their errors, logs, and metrics programmatically. | No | Yes |  | Unknown |
| [StackPath](https://stackpath.dev/docs) | The StackPath API is a RESTful HTTP service to programmatically interact with the StackPath... | No | Yes |  | Unknown |
| [Stackshare](https://docs.stackshare.io/) | The Stackshare API allows developers to discover new software tools, compare tools side-by-side,... | No | Yes |  | Unknown |
| [stampr](https://stampr.github.io/stampr-api) | Stampr is a free letter mailing web service. | No | Yes |  | Unknown |
| [Stateful Web Primitives](https://www.stateful.co) | This web service provides atomic counters as an add-on feature for the NoSQL cloud database Amazon... | No | Yes |  | Unknown |
| [Statically](https://statically.io/) | A free CDN for developers | No | Yes | Yes | Free |
| [Status.io](http://docs.statusio.apiary.io/#reference) | This API provides access to the Status.io Platform. | No | Yes |  | Unknown |
| [StatusPage](https://doers.statuspage.io) | StatusPage is a platform to build and manage status pages for web and mobile applications. | No | Yes |  | Unknown |
| [Statwing](https://www.statwing.com) | Statwing is a data analysis tool. Statwing provides various data analysis and visualization... | No | Yes |  | Unknown |
| [Stoplight](https://help.stoplight.io/docs/basics) | The Stoplight API enables you to programmatically get data out of, and put data into Stoplight. | No | Yes |  | Unknown |
| [Storecove](https://storecove.com) | Storecove API | `apiKey` | Yes |  | Unknown |
| [Straker Translation](http://straker.ie/products/translation-api/en/translation-api_home.cfm) | Straker Translation provides translation services including human translation services for... | No | Yes |  | Unknown |
| [Stream SDK](http://streamsdk.com) | Stream SDK offers developers a backend-as-a-service platform for their mobile applications. | No | Yes |  | Unknown |
| [Stream-io-api Stream Chat](https://stream-io-api.com) | Stream Chat API API | `apiKey` | Yes |  | Unknown |
| [Strongsteam](http://strongsteam.com) | Strongsteam is an AppStore that offers artificial intelligence and data mining APIs to let users... | No | Yes |  | Unknown |
| [stSoftware ReST](https://www.stsoftware.com.au/site/ST/modules/rest-api) | The stSoftware API provides business application integration in JSON and REST formats. | No | Yes |  | Unknown |
| [Sumibi](http://sumibi.org) | Sumibi is a tool for converting text between kanji and romaji. | No | Yes |  | Unknown |
| [Sumo Logic](https://api.sumologic.com/docs/) | Sumo Logic is a service for managing and analyzing large quantities of data in the cloud. | No | Yes |  | Unknown |
| [Sumo Logic Collector Management](https://help.sumologic.com/APIs/01Collector-Management-API/Collector-API-Methods-and-Examples) | The Sumo Logic Collector Management API manages Collectors and Sources from an HTTP endpoint. | No | Yes |  | Unknown |
| [Sumo Logic Search Job](https://help.sumologic.com/APIs/Search-Job-API/About-the-Search-Job-API) | The Sumo Logic Search Job API for enterprise accounts searches jobs by ID. | No | Yes |  | Unknown |
| [Supadata](https://supadata.ai) | Scrape YouTube, web, and files into text. Get AI-ready, clean data for your next project. | `apiKey` | Yes | Yes | Free |
| [SuperFish](http://wwws.superfish.com) | Superfish is a visual search technology that lets users use images instead of keywords as search... | No | Yes |  | Unknown |
| [Supportivekoala](https://developers.supportivekoala.com/) | Autogenerate images with template | `apiKey` | Yes | Yes | Free |
| [Surfly Cobrowsing](http://docs.surfly.apiary.io) | The Surfly REST API allows you to integrate the functionality of the Surfly dashboard and be used... | No | Yes |  | Unknown |
| [Surfly Cobrowsing Javascript](https://docs.surfly.com) | The Surfly Javascript API allows you to integrate Surfly into your application. | No | Yes |  | Unknown |
| [Survey Console](http://www.surveyconsole.com/system/api-access.html) | SurveyConsole is web based software for creating and distributing surveys. | No | Yes |  | Unknown |
| [SurveyMonkey](https://developer.surveymonkey.com) | SurveyMonkey is the web's largest survey service, boasting over 14 million users. | No | Yes |  | Unknown |
| [SUSE Studio](https://en.opensuse.org/openSUSE:SUSE_Studio_API) | SUSE Studio is a service that allows users to build custom Linux from a browser. | No | Yes |  | Unknown |
| [Svix](https://www.svix.com) | Webhooks as a Service | `apiKey` | Yes |  | Free |
| [Swagger API2Cart](https://api2cart.com) | API2Cart | `apiKey` | Yes |  | Unknown |
| [Swiftype Developer](https://swiftype.com/documentation/quickstart) | The Swiftype Developer REST API allows developers to access and integrate the functionality of... | No | Yes |  | Unknown |
| [Swiftype Platform](https://swiftype.com/documentation/site-search/overview) | The Swiftype Platform REST API allows developers to access and integrate the functionality of... | No | Yes |  | Unknown |
| [Swiftype Web Crawler](https://swiftype.com/documentation/site-search/overview) | Swiftype provides search engines for websites. | No | Yes |  | Unknown |
| [Syncano](http://www.syncano.com) | Syncano provides a backend-as-a-service that allows app developers to synchronize and scale their... | No | Yes |  | Unknown |
| [Synchroteam](https://api.synchroteam.com/) | Synchroteam is a mobile workforce control service that aims to optimize costs, dispatch, and... | No | Yes |  | Unknown |
| [Syniverse OTT](https://sdcdocumentation.syniverse.com) | The Syniverse OTT API stands for over the top, returning data to personalize messages, send and... | No | Yes |  | Unknown |
| [Syniverse Push](https://sdcdocumentation.syniverse.com) | The Syniverse Push API integrates messaging push notifications in text or rich media format for iOS... | No | Yes |  | Unknown |
| [Syniverse SMS & MMS](https://sdcdocumentation.syniverse.com) | The Syniverse SMS & MMS API returns mobile telephony data including cross-channel messaging... | No | Yes |  | Unknown |
| [Syniverse Voice](https://sdcdocumentation.syniverse.com) | The Syniverse Voice API returns data to call one or more recipients, supporting domestic US and... | No | Yes |  | Unknown |
| [T-ma-tic](https://code.google.com/p/t-ma-tic) | The T-ma-tic API delivers structured data of similar and linked concepts so that you can create... | No | Yes |  | Unknown |
| [t6](https://api.internetcollaboratif.info/#docs) | The t6 API is an oriented-Data platform that connects physical objects with time series DB,... | No | Yes |  | Unknown |
| [Tableau REST](http://onlinehelp.tableau.com/v10.0/api/rest_api/en-us/help.htm#REST/rest_api.htm) | The Tableau REST API provides HTTP access to programmatic solutions for managing and manipulating... | No | Yes |  | Unknown |
| [TAGGUN Receipt OCR Scanning](https://taggun.io) | Expects only running software, real reactions, and beautifully crafted APIs to serve your every... | No | Yes |  | Unknown |
| [Tagoo](http://tagoo.ru/en/webmaster.php?mode=xml_api) | The Tagoo XML API allows users to integrate the Tagoo search engine onto their own site or project. | No | Yes |  | Unknown |
| [Tailrank](http://spinn3r.com/service) | The blogosphere publishes - we index, interpret, filter, and cleanse. | No | Yes |  | Unknown |
| [TalkBack](https://thingspeak.com/docs/talkback) | ThingSpeak facilitates the collection of data from sensors and actuators in connected devices, the... | No | Yes |  | Unknown |
| [Tambur.io](https://www.tambur.io) | Tambur.io provides backend messaging solutions for mobile and web applications. | No | Yes |  | Unknown |
| [Tanker](https://tanker.io/docs/latest/api/tanker) | Tanker adds in-app encryption capabilities without affecting user experience or performance. | No | Yes |  | Unknown |
| [Tapglue](https://developers.tapglue.com) | The Tapglue API allows developers to create social products. | No | Yes |  | Unknown |
| [Tariff Analysis Project](http://minotaur.lbl.gov/tariffs/notes/webservice/index.php) | The U.S. Department of Energy, through the Lawrence Berkeley National Laboratory, operates the... | No | Yes |  | Unknown |
| [TastyPie](https://tastypieapi.org) | Django is a python web framework that encourages rapid development and pragmatic design. | No | Yes |  | Unknown |
| [TAUS Translation](https://labs.taus.net/interoperability/taus-translation-api) | TAUS Labs has developed a translation API for language service providers, translation developers,... | No | Yes |  | Unknown |
| [Taxamo](https://taxamo.com) | Taxamo’s elegant suite of APIs and comprehensive reporting dashboard enables digital merchants to... | `apiKey` | Yes |  | Unknown |
| [TazWorks CreditConnect](https://creditconnect.instascreen.net/docs) | The TazWorks CreditConnect API provides a RESTfull interface to interact with and gain access to... | No | Yes |  | Unknown |
| [TeamViewer](https://integrate.teamviewer.com/en/develop/documentation) | TeamViewer is a desktop sharing and online collaboration service. | No | Yes |  | Unknown |
| [Telepat](https://docs.telepat.io) | Telepat is a San Francisco based application development platform which features document feed... | No | Yes |  | Unknown |
| [Teleport](https://developers.teleport.org/) | Quality of Life Data | No | Yes |  | Unknown |
| [Telerik](https://docs.telerik.com) | Telerik Platform is a mobile application development platform that combines a set of tools for... | No | Yes |  | Unknown |
| [Telnyx Account](https://developers.telnyx.com/docs/api/v1/account) | The Telnyx Account API allows users to manage addresses associated with their account. | No | Yes |  | Unknown |
| [Telnyx Call Control](https://developers.telnyx.com/docs/voice/programmable-voice/get-started) | The Telnyx Call Control API allows users to control call flow for outbound calls, initiate outbound... | No | Yes |  | Unknown |
| [Telnyx CNAM Data](https://developers.telnyx.com/docs/api/v1/overview) | The Telnyx CNAM Data API allows users to retrieve caller information and enables users to return... | No | Yes |  | Unknown |
| [Telnyx Connections](https://developers.telnyx.com/docs/api/v1/overview) | The Telnyx Connections API returns a list of your Telnyx connections, updates the IP authentication... | No | Yes |  | Unknown |
| [Telnyx LRN Data](https://developers.telnyx.com/docs/api/v1/lrn-data) | The Telnyx LRN Data API allows users to look up Local Routing Number (LRN/LNP) information. | No | Yes |  | Unknown |
| [Telnyx Messaging](https://developers.telnyx.com/docs/messaging/messages/send-receive-mms) | The Telnyx Messaging API provides services to list messaging profiles, delete a messaging profile,... | No | Yes |  | Unknown |
| [Telnyx Messaging Webhooks](https://developers.telnyx.com/docs/v2/messaging) | The Telnyx Messaging Webhooks API provides services to be notified about events on your SMS-capable... | No | Yes |  | Unknown |
| [Telnyx Networking](https://developers.telnyx.com/docs/api/v1/overview) | The Telnyx Networking API enables users to manage private networks. | No | Yes |  | Unknown |
| [Telnyx Numbers](https://developers.telnyx.com/docs/v2/numbers) | The Telnyx Numbers API enables you to search for and purchase numbers from 15,000+ rate centers in... | No | Yes |  | Unknown |
| [Telnyx Outbound](https://developers.telnyx.com/docs/api/v1/outbound) | The Telnyx Outbound API enables users to create settings and outbound profiles to manage how... | No | Yes |  | Unknown |
| [Telnyx Platform](https://developers.telnyx.com/docs/v2/development/api-guide/overview) | The Telnyx Platform API provides access to a real-time communications platform and allows users to... | No | Yes |  | Unknown |
| [Telnyx Platform Webhooks](https://developers.telnyx.com/docs/v2/development/api-guide/webhooks) | The Telnyx Platform Webhooks API provides real-time updates via Webhook that delivers data by... | No | Yes |  | Unknown |
| [Telnyx Reports](https://developers.telnyx.com/docs/api/v1/overview) | The Telnyx Reports API provides a way to retrieve Call Detail Records (CDR), Messaging Detail... | No | Yes |  | Unknown |
| [Telnyx Switch Data](https://developers.telnyx.com/docs/api/v1/switch-data) | The Telnyx Switch Data API allows users to access routing and switch information associated with... | No | Yes |  | Unknown |
| [Telnyx Wireless](https://developers.telnyx.com/docs/api/v2/overview) | The Telnyx Wireless API allows users to register and manage SIM cards and view data consumption per... | No | Yes |  | Unknown |
| [Telstra Cloud Sight Platform](https://dev.telstra.com/apis) | The Telstra Cloud Sight Platform API provides a way to manage your public cloud resources. | No | Yes |  | Unknown |
| [Telstra Connected Things](https://dev.telstra.com/apis) | With the Telstra Connected Things API, developers can query details and network information for... | No | Yes |  | Unknown |
| [Telstra Programmable Network](https://dev.telstra.com/apis) | The Telstra Programmable Network API is a self provisioning platform that allows its users to... | No | Yes |  | Unknown |
| [Telstra Track and Monitor](https://dev.telstra.com/apis) | The Telstra Track and Monitor API allows you to interact with your Telstra Track and Monitor IoT... | No | Yes |  | Unknown |
| [Temboo](https://temboo.com) | Tools for Digital Transformation. Empowering Everyone to Innovate with IoT, APIs, and Emerging Tech. | No | Yes |  | Unknown |
| [Tendril](https://tendril.readme.io/v1.0/reference) | Tendril creates energy usage measurement devices and analysis software. | No | Yes |  | Unknown |
| [Terminal](https://www.terminal.com/api/docs) | Terminal, supported by Cloudlabs, allows developers to build applications on virtual servers that... | No | Yes |  | Unknown |
| [Texas State Water Plan](https://2017.texasstatewaterplan.org/about) | This API powers the interactive state water plan application. | No | Yes |  | Unknown |
| [Text-Processing.com](https://text-processing.com/docs) | Text-Processing.com is a natural language service. | No | Yes |  | Unknown |
| [Textbroker](https://www.textbroker.com/i-need-content/textbroker-api) | Textbroker is an article writing service that creates custom written content to client... | No | Yes |  | Unknown |
| [Textibility](https://textibility.com) | Textibility, from IdeaSynthesis, allows users to extract information from images and documents or... | No | Yes |  | Unknown |
| [TEXTKING](https://www.textking.com/api) | TEXTKING is an online translation service. | No | Yes |  | Unknown |
| [Textpresso for Neuroscience](https://textpressoapi.readthedocs.io/en/latest/) | Textpresso is an information extraction and processing service for biological literature developed... | No | Yes |  | Unknown |
| [Thailand Mobile Recharge](https://thailandtopup.com) | Thailand Mobile Recharge is an API provided by ThailandTopup. | No | Yes |  | Unknown |
| [The Alife Database](http://www.arieldolan.com/aldb/default.asp) | The Alife Database contains a listing of websites related to Alife (artificial life). | No | Yes |  | Unknown |
| [The Easy](https://theeasyapi.com) | The Easy API is one of the fastest growing API services out there. | No | Yes |  | Unknown |
| [The European Library](https://www.theeuropeanlibrary.org/confluence/display/developers/API+Documentation) | The European Library is a consortium of academic and research libraries. | No | Yes |  | Unknown |
| [The Giving Lab](https://www.thegivinglab.org/platform) | The Giving Lab is a network where charity and tech projects intersect. | No | Yes |  | Unknown |
| [The Grid](https://github.com/the-grid/apidocs) | This Javascript API enables you to build applications on top of The Grid. | No | Yes |  | Unknown |
| [The Miso Project](https://misoproject.com/dataset/api.html) | The Miso Project is an open-source toolkit for data visualization. | No | Yes |  | Unknown |
| [The Noun Project](https://thenounproject.com) | Icons for Everything | No | No |  | Unknown |
| [The Open Movie Database](https://OMDbAPI.com) | The Open Movie Database API by Brian Fritz is an open database that sources movie information from... | No | Yes |  | Unknown |
| [The Things Network](https://www.thethingsnetwork.org/docs/applications) | The Things Network offers an Internet of Things platform that is robust and solid, with a... | No | Yes |  | Unknown |
| [TheBigDB](https://thebigdb.com/api) | TheBigDB is a loosely-structured database that is free and open to the public. | No | Yes |  | Unknown |
| [TheySay AffectR](http://docs.theysay.apiary.io) | TheySay is an automated sentiment analysis tool based on advanced computational linguistics. | No | Yes |  | Unknown |
| [Thingiverse](http://www.thingiverse.com/api) | Thingiverse is an online platform for people to create, share, edit, and produce their digital... | No | Yes |  | Unknown |
| [ThingScale](https://thingscale.docs.apiary.io) | ThingScale provides a messaging system for IoT connected devices. | No | Yes |  | Unknown |
| [Thomson Reuters ONESOURCE Calendar](https://developerportal.thomsonreuters.com) | These ONESOURCE APIs use a REST architecture that provides communication via the Thomson Reuters... | No | Yes |  | Unknown |
| [Thomson Reuters Screening Deployed](https://developers.thomsonreuters.com/customer-and-third-party-screening/screening-deployed-api) | The Thomson Reuters Screening Deployed API allows developers to implement data filtering concepts... | No | Yes |  | Unknown |
| [Thomson Reuters Screening Online](https://developers.thomsonreuters.com/customer-and-third-party-screening/screening-online-api/docs) | The Thomson Reuters Screening Online API allows users to interact with the World Check Database of... | No | Yes |  | Unknown |
| [ThoughtSpot](https://docs.thoughtspot.com) | The ThoughtSpot API provides access to services that allow you to; get the pinboard data from the... | No | Yes |  | Unknown |
| [Thread Genius](https://threadgenius.co/docs) | The Thread Genius API provides visual style recognition as a service that allows you to tag photos... | No | Yes |  | Unknown |
| [ThriftDB](https://www.thriftdb.com) | ThriftDB is a document-oriented data storage service that is built on top of the Thrift... | No | Yes |  | Unknown |
| [ThrustCurve](https://www.thrustcurve.org/searchapi.shtml) | ThrustCurve is an information resource for model rocket hobbyists. | No | Yes |  | Unknown |
| [Ticketmaster Discovery](http://developer.ticketmaster.com/support/contact-us/) | The Ticketmaster Discovery API allows you to search for events, attractions, or venues. | No | Yes |  | Unknown |
| [ticketmaster publish api](http://developer.ticketmaster.com/support/contact-us/) | Publish API | No | Yes |  | Unknown |
| [Timeanddate.com](https://dev.timeanddate.com/) | Timeanddate.com is an online resource for information on local times worldwide, time zones,... | No | Yes |  | Unknown |
| [TimeAPI](http://www.timeapi.org) | The TimeAPI is web service to get dates/times from natural language queries based on Chronic. | No | Yes |  | Unknown |
| [Timeneye Time Tracking](https://github.com/dmdigital/timeneye-api) | Timeneye is an online time-tracking service that provides a simple user interface for tracking time... | No | Yes |  | Unknown |
| [TinEye MulticolorEngine](https://services.tineye.com/developers/multicolorengine) | The TinEye MulticolorEngine API allows developers to make their image collections searchable by... | No | Yes |  | Unknown |
| [Tinify tinypng](https://tinify.com/developers) | TinyPNG API will help you compress and reduce the size of your JPEF and PNG files. | `apiKey` | Yes |  | Unknown |
| [Tiny.cc](https://tiny.cc/api-docs) | Tiny.cc is a tool for making email-friendly links. | No | Yes |  | Unknown |
| [TinyArro.ws](http://tinyarrows.com/info/api) | TinyArro.ws is a URL shortening service that creates URLs through the use of Unicode and support... | No | Yes |  | Unknown |
| [TinyPNG](https://tinypng.com/developers/reference) | TinyPNG is a file compression service that reduces the files size of PNG images and preserves full... | No | Yes |  | Unknown |
| [TipTap Lab](http://www.tiptaplab.com/technology) | TipTap Lab employs technology and scientific methods to identify psychological motivations behind... | No | Yes |  | Unknown |
| [TM Forum Activation and Configuration](https://projects.tmforum.org/wiki/display/API/Open+API+Table) | The TM Forum Activation and Configuration API allows developers to retrieve, create, update, and... | No | Yes |  | Unknown |
| [TM Forum Agreement](https://projects.tmforum.org/wiki/display/API/Open+API+Table) | The TM Forum Agreement API provides users with a standardized interface for managing agreements,... | No | Yes |  | Unknown |
| [TM Forum Loyalty Management](https://projects.tmforum.org/wiki/download/attachments/40177889/SPM%20API%20RESTSpec_V0-0-1_161020-1.pdf?version=1&modificationDate;=1477333456000&api;=v2) | The TM Forum Loyalty Management API is a useful tool for developing loyalty program specifications... | No | Yes |  | Unknown |
| [TM Forum Onboarding](https://projects.tmforum.org/wiki/display/API/Open+API+Table) | The TM Forum Onboarding API allows users to manage the onboarding process over a standardized... | No | Yes |  | Unknown |
| [TM Forum Resource Ordering](https://projects.tmforum.org/wiki/display/API/Open+API+Table) | The TM Forum Resource Ordering API allows users to manage the different activities that constitute... | No | Yes |  | Unknown |
| [TM Forum Service Test Management](https://projects.tmforum.org/wiki/download/attachments/40177889/Service%20Test%20management%20API%20Specification%20V0.92.pdf) | A service test facilitates the procedural interrogation of the quality, performance, or reliability... | No | Yes |  | Unknown |
| [TM Forum SLA Management](https://www.tmforum.org/resources/interface/tmf623-sla-management-api-rest-specification-r14-5-0/) | The TM Forum SLA Management API provides a standardized interface for Service Level Agreement (SLA)... | No | Yes |  | Unknown |
| [TM Forum Usage Management](https://www.tmforum.org/resources/interface/tmf635-usage-management-api-rest-specification-r14-5-0/) | The TM Forum Usage Management API allows developers to create, update, retrieve, import, and export... | No | Yes |  | Unknown |
| [tny.im](https://tny.im/aboutapi.php) | tny.im is a service for shortening URLs that is powered by the YOURLS script. | No | Yes |  | Unknown |
| [Toggl](https://developers.track.toggl.com/docs/tracking/) | Toggl is an online time tracking tool for freelancers and teams. | No | Yes |  | Unknown |
| [TokenJay API services](https://tokenjay.app) | Please see usage policies on tokenjay.app | No | Yes |  | Unknown |
| [Tolgee](https://tolgee.io) | Open-source localization (i18n) platform enabling you to translate you app fast | `apiKey` | Yes | No | Free |
| [Toolcarton](https://testimonialapi.toolcarton.com/) | Generate random testimonial data | No | Yes |  | Unknown |
| [Toon](https://developer.toon.eu/api-intro) | The Toon API offers developers access to the Toon smart thermostat, energy-insight and smart home... | No | Yes |  | Unknown |
| [Topics.io](http://newsinapp.io) | Newsinapp.io is an online tool that allows users and developers to access a variety of online... | No | Yes |  | Unknown |
| [Torpio](https://torpio.com) | Torpio lets anyone create simple scripts that integrate and extend cloud applications through... | No | Yes |  | Unknown |
| [Touch Local](https://www.touchlocal.com) | The TouchLocal online business directory, touchlocal. | No | Yes |  | Unknown |
| [Traccar](https://www.traccar.org/) | Open Source GPS Tracking Platform | `Basic` | Yes |  | Unknown |
| [Trackingo](https://www.trackingo.com/api) | Trackingo is a website where users can track their personal data and generate graphs and... | No | Yes |  | Unknown |
| [TrackMyPeople](https://www.trackmypeople.com/api) | TrackMyPeople is a time tracking service that allow users to track their time by project/issue with... | No | Yes |  | Unknown |
| [Trackvia](https://developer.trackvia.com) | TrackVia is an online platform that helps users build databases and applications for their... | No | Yes |  | Unknown |
| [Tradematic Cloud](https://tradematic.com) | ### Overview Tradematic Cloud is a trading infrastructure for building investment services. | `apiKey` | Yes |  | Unknown |
| [Tradu24 Translation](http://www.tradu24.com/translation-api) | Tradu24 is a translation, localization, and interpreting site that employs over 10,000 language... | No | Yes |  | Unknown |
| [TrakQR](http://trakqr.com/resources/api) | TrakQR is a service allowing users to create, manage, and track dynamic Quick Response Codes. | No | Yes |  | Unknown |
| [TranscribeMe](http://transcribeme.com/api-integration) | TranscribeMe is a transcription platform that offers audio transcription services for general... | No | Yes |  | Unknown |
| [Translation Cloud](https://www.translationcloud.net/customers/documentation/what-is-translation-cloud-api) | Now in V2, the Translation Cloud API allows developers to automate the entire workflow of... | No | Yes |  | Unknown |
| [Translution](http://www.translution.com/translution-api.aspx) | Translution specializes in machine and human translation services. | No | Yes |  | Unknown |
| [Trawex Travel](https://www.trawex.com/third-party-integrations.php) | Trawex is a travel technology company based in India that offers travel technology, travel portal... | No | Yes |  | Unknown |
| [Trellian Keyword Discovery](https://api.keyworddiscovery.com) | Keyword Discovery collects keyword data from many different search engines world wide and compiles... | No | Yes |  | Unknown |
| [Treparel KMX for OEM](http://treparel.com/built-on-kmx) | Treparel's KMX for OEM is a service that provides users with advanced search, analysis, and... | No | Yes |  | Unknown |
| [Trigger Forge](https://trigger.io/docs/current/getting_started/api.html) | Trigger.io has developed Forge, a cross-platform app framework that allows web developers to create... | No | Yes |  | Unknown |
| [Trigger.io](https://trigger.io/docs/current/tools/standalone.html) | Trigger.io is a cross-platform app development service. Companies and developers can use Trigger. | No | Yes |  | Unknown |
| [Trovit](https://corporate.trovit.com) | Trovit is a search engine for classified ads in Europe and Latin America. | No | Yes |  | Unknown |
| [True Knowledge](http://images.trueknowledge.com/blog/wp-content/uploads/2011/02/tk_api_docs.pdf) | True Knowledge is a new class of Internet search technology aimed at improving the experience of... | No | Yes |  | Unknown |
| [TrueVault](https://www.truevault.com/rest-api.html) | TrueVault is a Backend-as-a-Service (BaaS) platform designed to provide HIPAA compliant information... | No | Yes |  | Unknown |
| [TrueVault REST Users](https://docs.truevault.com/users) | The TrueVault Users API allows developers to create new users, following HIPPA privacy standards of... | No | Yes |  | Unknown |
| [Trustlinker](https://www.mashape.com/trustlinker-de/trustlinker-de) | Trustlinker is a tool to format unformatted text and add links in the text. | No | Yes |  | Unknown |
| [TrustPilot Business Unit](https://developers.trustpilot.com/business-unit-api) | The TrustPilot Business Unit REST and HTTP API allows developers to access and integrate the... | No | Yes |  | Unknown |
| [TrustPilot Consumer](https://developers.trustpilot.com/consumer-api) | The TrustPilot Consumer REST and HTTP API allows developers to access and integrate the... | No | Yes |  | Unknown |
| [TrustPilot Invitation](https://developers.trustpilot.com/invitation-api) | The TrustPilot Invitation REST and HTTP API allows developers to access and integrate the... | No | Yes |  | Unknown |
| [TrustPilot Product Reviews](https://developers.trustpilot.com/product-reviews-api) | The TrustPilot Product Reviews REST and HTTP API allows developers to access and integrate the... | No | Yes |  | Unknown |
| [TrustPilot Review](https://developers.trustpilot.com/review-api) | The TrustPilot Review REST and HTTP API allows developers to access and integrate the functionality... | No | Yes |  | Unknown |
| [TryPaper](https://www.trypaper.com) | TryPaper is document printing and mailing service. | No | Yes |  | Unknown |
| [TTS-API.COM](http://tts-api.com) | TTS-API.COM is a simple and free text-to-speech API. | No | Yes |  | Unknown |
| [TTSEngine](http://www.ttsengine.com/api) | TTSEngine is a text-to-speech web service that also offers custom voices for text-to-speech... | No | Yes |  | Unknown |
| [TuneFind](https://www.tunefind.com/api) | TuneFind contains an index of music and songs appearing in popular television shows and movies. | No | Yes |  | Unknown |
| [Tutum](https://docs.tutum.co/v2/api) | Tutum is a platform for building, deploying, and managing applications across any cloud. | No | Yes |  | Unknown |
| [TweetReach](http://apidocs.tweetreach.com/wiki/API_Overview) | The TweetReach API allows users to access the trackers associated with an account, the tracker... | No | Yes |  | Unknown |
| [TweetSentiments](http://www.intridea.com/blog/2010/11/29/sentiment-analysis-using-tweetsentimentscom-api) | TweetSentiments performs semantic analysis of tweets using a Support Vector Machines algorithm. | No | Yes |  | Unknown |
| [Twilio - Accounts](https://support.twilio.com) | This is the public Twilio REST API. | `Basic` | Yes |  | Unknown |
| [Twilio - Api](https://support.twilio.com) | This is the public Twilio REST API. | `Basic` | Yes |  | Unknown |
| [Twilio - Bulkexports](https://support.twilio.com) | This is the public Twilio REST API. | `Basic` | Yes |  | Unknown |
| [Twilio - Chat](https://support.twilio.com) | This is the public Twilio REST API. | `Basic` | Yes |  | Unknown |
| [Twilio - Conversations](https://support.twilio.com) | This is the public Twilio REST API. | `Basic` | Yes |  | Unknown |
| [Twilio - Events](https://support.twilio.com) | This is the public Twilio REST API. | `Basic` | Yes |  | Unknown |
| [Twilio - Flex](https://support.twilio.com) | This is the public Twilio REST API. | `Basic` | Yes |  | Unknown |
| [Twilio - Frontline](https://support.twilio.com) | This is the public Twilio REST API. | `Basic` | Yes |  | Unknown |
| [Twilio - Insights](https://support.twilio.com) | This is the public Twilio REST API. | `Basic` | Yes |  | Unknown |
| [Twilio - Lookups](https://support.twilio.com) | This is the public Twilio REST API. | `Basic` | Yes |  | Unknown |
| [Twilio - Monitor](https://support.twilio.com) | This is the public Twilio REST API. | `Basic` | Yes |  | Unknown |
| [Twilio - Notify](https://support.twilio.com) | This is the public Twilio REST API. | `Basic` | Yes |  | Unknown |
| [Twilio - Numbers](https://support.twilio.com) | This is the public Twilio REST API. | `Basic` | Yes |  | Unknown |
| [Twilio - Pricing](https://support.twilio.com) | This is the public Twilio REST API. | `Basic` | Yes |  | Unknown |
| [Twilio - Proxy](https://support.twilio.com) | This is the public Twilio REST API. | `Basic` | Yes |  | Unknown |
| [Twilio - Routes](https://support.twilio.com) | This is the public Twilio REST API. | `Basic` | Yes |  | Unknown |
| [Twilio - Serverless](https://support.twilio.com) | This is the public Twilio REST API. | `Basic` | Yes |  | Unknown |
| [Twilio - Studio](https://support.twilio.com) | This is the public Twilio REST API. | `Basic` | Yes |  | Unknown |
| [Twilio - Sync](https://support.twilio.com) | This is the public Twilio REST API. | `Basic` | Yes |  | Unknown |
| [Twilio - Taskrouter](https://support.twilio.com) | This is the public Twilio REST API. | `Basic` | Yes |  | Unknown |
| [Twilio - Trunking](https://support.twilio.com) | This is the public Twilio REST API. | `Basic` | Yes |  | Unknown |
| [Twilio - Trusthub](https://support.twilio.com) | This is the public Twilio REST API. | `Basic` | Yes |  | Unknown |
| [Twilio - Verify](https://support.twilio.com) | This is the public Twilio REST API. | `Basic` | Yes |  | Unknown |
| [Twilio - Voice](https://support.twilio.com) | This is the public Twilio REST API. | `Basic` | Yes |  | Unknown |
| [Twingly](https://www.twingly.com/products/blog-data) | The Twingly API allows users query Twingly's blog search index for commercial purposes. | No | Yes |  | Unknown |
| [Twinword Language Scoring](https://twitter.com/twinwordinc) | What's the difficulty level of this article? | No | Yes |  | Unknown |
| [Twinword Visual Context Graph](https://www.twinword.com/api/visual-context-graph.php) | Build a graph with words connected to other words. | No | Yes |  | Unknown |
| [Twinword Word Graph Dictionary](https://twitter.com/twinwordinc) | A dictionary and so much more! Rich information for a word with definitions, associations,... | No | Yes |  | Unknown |
| [Twist Webhooks](https://developer.twistapp.com/v2) | The Twist Webhooks API is an incoming Webhook URL to post via some script or external system... | No | Yes |  | Unknown |
| [Twitter Search](https://dev.twitter.com/docs/api/1/get/search) | Twitter search API with optional restriction on language, from, to, and hashtags. | No | Yes |  | Unknown |
| [Tyk Dashboard](https://tyk.io/docs/tyk-dashboard-api) | The Tyk Dashboard API offers granular, programmatic access to a centralised database of resources... | No | Yes |  | Unknown |
| [Tyk Dashboard Admin](https://tyk.io/docs) | The Dashboard Admin API is a special bootstrapping API that can be used to set up and provision a... | No | Yes |  | Unknown |
| [Tykli](http://tyk.li/api) | Tykli is a data search and data organization service that uses Semantic Web and Big Data... | No | Yes |  | Unknown |
| [Typeform](https://support.typeform.com/customer/portal/articles/1234153-update-api-method-to-retrieve-data-json-) | Typeform is a survey creation service that can make surveys that adapt to any device. | No | Yes |  | Unknown |
| [UAE Car Registration](https://ae.carregistrationapi.com) | UAE Car Registration API aids the real-time retrieval of registration details along with technical... | No | Yes |  | Unknown |
| [Ubidots](http://ubidots.com/docs/api/index.html) | Ubidots offers a platform for developers that enables them to easily capture sensor data and turn... | No | Yes |  | Unknown |
| [uClassify](https://www.uclassify.com) | The uClassify API allows you to classify text. | No | Yes |  | Unknown |
| [uHunt](http://uhunt.felix-halim.net/webapi) | UVa Online Judge provides visitors with access to hundreds of problems similar to those used in... | No | Yes |  | Unknown |
| [UN Comtrade](https://comtrade.un.org/data/doc/api) | UN COMTRADE is the name for the United Nations Commodity Trade Statistics Database. | No | Yes |  | Unknown |
| [UnFound Relevant Wikipedia Pages](https://rapidapi.com/UnFound/api/relevant-wikipedia-pages) | The UnFound Relevant Wikipedia Pages API can extract important topics from any given text or URL... | No | Yes |  | Unknown |
| [Unfuddle](https://unfuddle.com/support/docs/api) | From their site: Provides developers with a very simple medium for creating new Unfuddle-based... | No | Yes |  | Unknown |
| [Unified Software AddressVal](https://www.unifiedsoftware.co.uk/developers/technicaldetails/addrval.html#no2) | Unified Software's AddressVal API allows users to provide a partial address, and returns one or... | No | Yes |  | Unknown |
| [Unique Secure](https://www.unique-secure.com) | Unique Secure provides electronic point of sale digital systems with smart connectors, custom LEDs,... | No | Yes |  | Unknown |
| [Unitag](https://www.unitaglive.com/api/qrcode) | Unitag is a free QR code generator. Through use of the generator tool, users can customize their QR... | No | Yes |  | Unknown |
| [Unofficial Google News](https://gnews.io/docs/v3) | The GNews API is used for collecting articles corresponding to a given set of keywords, we also... | No | Yes |  | Unknown |
| [Unofficial Google Play Store](https://bit.ly/AndroidAppStoreAPI) | This is an unofficial API that allows you to query the Google Play store programatically. | No | Yes |  | Unknown |
| [Unofficial Tesla Model S](https://tesla-api.timdorr.com) | Tesla Model S JSON is not an official Tesla API. | No | Yes |  | Unknown |
| [UpKeep](https://upkeepinfo.github.io/upkeep) | The UpKeep REST API allows developers to access and integrate the functionality of UpKeep with... | No | Yes |  | Unknown |
| [UpName](http://upname.com/search/api/obtainkey.php) | UpName is a search and comparison tool for domain names. | No | Yes |  | Unknown |
| [uProc](http://docs.uproc.io/api) | uProc offers tools to enhance and enrich database fields. | No | Yes |  | Unknown |
| [UPS Time in Transit](https://developer.ups.com/api/reference) | The UPS Time in Transit API allows businesses to include complete shipping transit time information... | No | Yes |  | Unknown |
| [Uptime Robot](https://uptimerobot.com/api/) | Uptime Robot allows you to monitor the statuses of up to 50 websites with alerts available by SMS,... | No | Yes |  | Unknown |
| [UptimeFu](https://github.com/sprinted/UptimeFu-API) | UptimeFu is a website and server monitoring service. | No | Yes |  | Unknown |
| [Ur.ly](https://github.com/ajstiles/urly/wiki) | Ur.ly is a service for creating very short URLs. | No | Yes |  | Unknown |
| [UrbanScraper](http://urbanscraper.herokuapp.com) | The UrbanScraper API provides Urban Dictionary definitions by passing the desired term in a GET... | No | Yes |  | Unknown |
| [Urbarama](http://en.urbarama.com/api) | Urbarama is an online Atlas of Architecture and Human-built Infrastructure. | No | Yes |  | Unknown |
| [URL2Picture](http://www.url2picture.com) | URL2Picture takes full-page screenshots or thumbnails of any website for inclusion in web pages,... | No | Yes |  | Unknown |
| [URL2PNG](http://url2png.com) | URL2PNG is a service that lets users integrate screenshots into their website or iOS product by... | No | Yes |  | Unknown |
| [UrlBae](https://urlbae.com/developers) | Simple and efficient short link creation | `apiKey` | Yes | Yes | Unknown |
| [Urloid](http://urloid.com) | From their site: Allows users to implement link optimization services into third party applications... | No | Yes |  | Unknown |
| [USDA PubAg](http://pubag.nal.usda.gov/pubag/static/api.html) | USDA PubAg API supports the integration of apps for accessing and searching a database of... | No | Yes |  | Unknown |
| [UserAgent](https://useragent.app) | User agent parsing API is designed to help you better understand and interact with your users. | `apiKey` | Yes | Yes | Free |
| [UserAgent.app](https://useragent.app/documentation) | The UserAgent.app API in REST architecture, supports URI Query String /CRUD and JSON format,... | No | Yes |  | Unknown |
| [UserBob Usability Testing](https://userbob.com) | The UserBob Usability Testing API is a remote user testing service. | No | Yes |  | Unknown |
| [UserIQ Custom Data](https://useriq.zendesk.com/hc/en-us/categories/115000320693-Integrations) | The UserIQ Custom Data API allows you to adds/updates account attribute data for a specific UserIQ... | No | Yes |  | Unknown |
| [UserIQ Custom Event](https://useriq.zendesk.com/hc/en-us/categories/115000320693-Integrations) | The UserIQ Custom Event API allows you to track a custom event in UserIQ. | No | Yes |  | Unknown |
| [UserIQ Guided Tour](https://useriq.zendesk.com/hc/en-us/categories/115000320693-Integrations) | The UserIQ Guided Tour API provides control over how guided tours are presented and supports event... | No | Yes |  | Unknown |
| [Userscripts](http://userscripts.org/api) | Userscripts is a website that hosts thousands of free scripts that enhance the enjoyment or... | No | Yes |  | Unknown |
| [Usersnap](https://usersnap.com/doc/provisioning) | Usersnap is a visual feedback tool for website owners, allowing users and administrators to create... | No | Yes |  | Unknown |
| [userstack](https://userstack.com) | userstack offers a scalable REST API service capable of accurately detecting browser, device and... | No | Yes |  | Unknown |
| [USPS Domestic Rates](https://developers.usps.com/apis) | The USPS Domestic Rates API allows developers to calculate the rates for domestic packages and... | No | Yes |  | Unknown |
| [Uspto Bulk Data Storage System Services](https://uspto.gov) | Bulk Data Storage System (BDSS) allows the public to discover, search, and download patent and... | No | Yes |  | Unknown |
| [USPTO Bulk Search And Download](https://developer.uspto.gov/api-catalog/bulk-search-and-download) | The USPTO Bulk Search And Download API allows developers to search published patent grants and... | No | Yes |  | Unknown |
| [Valobox](https://valobox.com/tornado/v1) | Valobox is a web application that stores books in the cloud, making them instantly available to... | No | Yes |  | Unknown |
| [Vast](http://www.vast.com/info/customapi) | Vast is a web search service that crawls the entire web and structure the data it finds. | No | Yes |  | Unknown |
| [vatlayer](https://vatlayer.com/documentation) | VAT number validation | `apiKey` | Yes |  | Unknown |
| [Vehicle Enquiry](https://api.gov.uk) | Interface specification for the DVLA Vehicle Enquiry API | No | Yes |  | Unknown |
| [Verizon Connect](https://www.verizonconnect.com/services/api-integration) | The Verizon Connect API is a platform available by request to share billing, payroll, HR,... | No | Yes |  | Unknown |
| [Verizon ThingSpace Device Location](https://thingspace.verizon.com/develop/apis) | The Verizon ThingSpace Device Location API provides a way to find the location of IoT devices in an... | No | Yes |  | Unknown |
| [Verizon ThingSpace MapQuest Static Map](https://thingspace.verizon.com/develop/apis) | The Verizon ThingSpace MapQuest Static Map API enables you to create, configure, and return a map... | No | Yes |  | Unknown |
| [Verizon ThingSpace SMS](https://thingspace.verizon.com/resources/documentation/sms/API_Reference) | The Verizon ThingSpace SMS API lets applications send time sensitive information to users phones,... | No | Yes |  | Unknown |
| [Versium Analytics](https://versium.com/versium-analytics-data-api) | Versium is a big data provider that has assembled date points on over 240 million consumers and 20... | No | Yes |  | Unknown |
| [ViaFo](http://wiki.viafo.com/doku.php) | ViaFo provides a range of solutions for mobile developers that allow them to add services such as... | No | Yes |  | Unknown |
| [ViewDNS.info](https://viewdns.info/api) | ViewDNS in an online source for DNS related tools. The tools provided by ViewDNS. | No | Yes |  | Unknown |
| [VigLink Catalog](https://www.viglink.com/developers) | VigLink is a service that embeds affiliate links where possible to make a publisher money from... | No | Yes |  | Unknown |
| [VinAudit](https://www.vinaudit.com/api-documentation) | The service provides lookup access to vehicle history reports compiled by the U.S. | No | Yes |  | Unknown |
| [VirusTotal Public](https://www.virustotal.com/en/documentation/public-api) | The VirusTotal Public REST API exposes the information generated by its scanners to developers for... | No | Yes |  | Unknown |
| [Visa Customer Rules](https://developer.visa.com/) | Visa Consumer Transaction Control (CTC) affords consumers the flexibility of determining the... | No | Yes |  | Unknown |
| [VisiStat](http://www.visistat.com/vs8-visistat-api.php) | VisiStat is a web analytics and customer intelligence provider that aims to help small and medium... | No | Yes |  | Unknown |
| [Visual DataFlex ISBN Validation](https://webservices.daehosting.com/services/ISBNService.wso) | The Visual DataFlex ISBN Validation API allows users to validate ISBN codes that are either 10 or... | No | Yes |  | Unknown |
| [Visual DataFlex Temperature Conversion](https://webservices.daehosting.com/services/TemperatureConversions.wso) | The Visual DataFlex Temperature Conversion API converts temperature values from Celcius to... | No | Yes |  | Unknown |
| [Visual Studio Online](https://www.visualstudio.com/integrate/reference/reference-vso-overview-vsi) | Visual Studio, an integrated development environment from Microsoft, that enables programmers to... | No | Yes |  | Unknown |
| [VisualSearchAPI Visual Search](http://www.visualsearchapi.com/apiDoc/apiDoc?apiDoc=V) | The VisualSearchAPI Visual Search integrates image and photo results by interacting with machine... | No | Yes |  | Unknown |
| [Visualstudio VSOnline](https://visualstudio.com) | Public APIs for managing VS Codespaces | `Bearer` | Yes |  | Unknown |
| [VocaDbWeb](https://vocadb.net) | VocaDbWeb API | No | Yes |  | Unknown |
| [Vocalware](https://www.vocalware.com/support/reference) | Vocalware lets developers speech-enable any web or mobile application by using cloud-based... | No | Yes |  | Unknown |
| [Voice RSS](https://www.voicerss.org) | Voice RSS makes Text-To-Speech (TTS) capabilities available online for free. | No | Yes |  | Unknown |
| [VoiceCloud](https://www.voicecloud.com/features/api) | VoiceCloud is a leading cloud based voice services provider. | No | Yes |  | Unknown |
| [VolunteerMatch](https://solutions.volunteermatch.org/solutions/integrations) | The VolunteerMatch API allows developers to integrate the VolunteerMatch network into their own... | No | Yes |  | Unknown |
| [Vonage Nexmo Application](https://developer.nexmo.com/api/application) | The Vonage Nexmo Application API allows developers to manage their applications built with... | No | Yes |  | Unknown |
| [W3C Battery Status](https://developer.mozilla.org/en-US/docs/Web/API/Battery_Status_API) | The Battery Status API, documented by W3C, is a browser-based API that enables web developers to... | No | Yes |  | Unknown |
| [W3C Clipboard](https://www.w3.org/TR/2015/WD-clipboard-apis-20150421) | The W3C Clipboard API document provides a description for an API that allows users to integrate... | No | Yes |  | Unknown |
| [W3C Device Memory](https://w3c.github.io/device-memory) | The W3C Device Memory API is a HTTP Client Hint header to surface device capability for memory. | No | Yes |  | Unknown |
| [W3C File](https://www.w3.org/TR/FileAPI) | The W3C File API document specifies an API for representing file objects in web applications,... | No | Yes |  | Unknown |
| [W3C FindText](https://www.w3.org/TR/findtext) | The W3C FindText API document specifies an API that allows developers to use a variety of selection... | No | Yes |  | Unknown |
| [W3C Generic Sensor](https://www.w3.org/TR/generic-sensor) | The W3C Generic Sensor API defines a blueprint for writing specifications of concrete sensors. | No | Yes |  | Unknown |
| [W3C Indexed Database](https://www.w3.org/TR/IndexedDB) | The W3C Indexed Database API is a document that defines APIs for a database of records that holds... | No | Yes |  | Unknown |
| [W3C Input Method Editor](https://www.w3.org/TR/ime-api) | The W3C Input Method Editor API document specifies an API that provides web applications with... | No | Yes |  | Unknown |
| [W3C Markup Validator](https://validator.w3.org/docs/api.html) | The World Wide Web Consortium (W3C) is an international community that works to develop Web... | No | Yes |  | Unknown |
| [W3C Performance Timeline](https://www.w3.org/TR/performance-timeline-2) | The W3C Performance Timeline API is a specification that defines performance timeline primitives... | No | Yes |  | Unknown |
| [W3C Pointer Lock](https://www.w3.org/TR/pointerlock) | The W3C Pointer Lock API is a specification that defines an API for providing scripted access to... | No | Yes |  | Unknown |
| [W3C Reporting](https://www.w3.org/TR/2016/NOTE-reporting-1-20160607) | The Reporting API is used for prioritizing and delivery of reports which are sent to an endpoint or... | No | Yes |  | Unknown |
| [W3C Selection](https://www.w3.org/TR/selection-api) | The W3C Selection API is a specification for an API that provides selection-related functionality. | No | Yes |  | Unknown |
| [W3C The Permissions](https://www.w3.org/TR/permissions) | The W3C The Permissions API is a document that specifies an API for handling permissions. | No | Yes |  | Unknown |
| [W3C Vibration](https://www.w3.org/TR/2014/PR-vibration-20141209) | The Vibration API is a simple browser-based device API documented by the W3C Device APIs Working... | No | Yes |  | Unknown |
| [W3C Wake Lock](https://www.w3.org/TR/wake-lock) | The W3C Wake Lock API is a specification for an API that lets web applications request a wake lock. | No | Yes |  | Unknown |
| [W3C Web Workers](https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API) | The W3C Web Workers API is a specification that defines an API for spawning background workers to... | No | Yes |  | Unknown |
| [W3C WebDriver](https://www.w3.org/TR) | The World Wide Web Consortium (W3C) is an international community dedicated to developing open... | No | Yes |  | Unknown |
| [Wakanda](http://doc.wakanda.org/home2.en.html) | The Wakanda REST API allows you to retrieve information about the datastore classes in your... | No | Yes |  | Unknown |
| [Wakanda JRPC](http://doc.wakanda.org/home2.fr.html%23/Using-JSON-RPC-Services/Using-JSON-RPC-Services.100-606903.en.html#/Using-JSON-RPC-Services) | The Wakanda JRPC API allows you to execute server-side JavaScript functions from any client... | No | Yes |  | Unknown |
| [Wakanda SSJS](https://wakanda.github.io/api-reference) | The Wakanda SSJS API is available through the globally exposed object directory to handle all kind... | No | Yes |  | Unknown |
| [Wakanda Websockets Client](https://wakanda.github.io/doc) | Wakanda Websockets Client API allows you to open a WebSocket connection from the Wakanda SSJS to a... | No | Yes |  | Unknown |
| [Wakanda Websockets Server](http://doc.wakanda.org/home2.fr.html%23/WebSocket-Client/WebSocket-Client.100-1038292.en.html##/WebSocket-Server/WebSocket-Server.100-1049244.en.html) | The Wakanda Websockets Server API allows you to handle client WebSocket connections on the server. | No | Yes |  | Unknown |
| [Wakanda XML](http://doc.wakanda.org/home2.fr.html%23/WebSocket-Client/WebSocket-Client.100-1038292.en.html#/XMLHttpRequest/XMLHttpRequest-Constructor/XMLHttpRequest.301-867272.en.html) | The Wakanda server-side XMLHttpRequest API allows the Wakanda server to send requests to other HTTP... | No | Yes |  | Unknown |
| [Walletobjects Google Pay Passes](https://google.com) | API for issuers to save and manage Google Wallet Objects. | `OAuth` | Yes |  | Unknown |
| [Walmart Item](https://walmart.com) | Please make sure you use the correct version of the APIs for your use case. | No | Yes |  | Unknown |
| [Walmart Price Management](https://walmart.com) | The price is a fundamental building block for your listing on Walmart.com. | No | Yes |  | Unknown |
| [WAMI](https://code.google.com/p/wami) | WAMI is a simple way to add speech recognition capabilities to a web page. | No | Yes |  | Unknown |
| [Wealth Reader](https://wealthreader.com) | Las APIs regulatorias basadas en PSD2 proporcionan acceso a cierta información financiera como... | No | Yes |  | Unknown |
| [Web Converter of Film Generator](https://filmgenerator.goodeasy.info/converter) | The Film GeneratorAPI can convert webpages or text into cartoons and animations. | No | Yes |  | Unknown |
| [Web Form Factory](http://www.webformfactory.com/weblog/article/22/a-look-at-the-wff-soap-api) | From their site: Web Form Factory is an open source web form generator which automatically... | No | Yes |  | Unknown |
| [Web Scrape Master](https://motyar.info/webscrapemaster) | Web Scrape Master provides an API for retrieving data and content from websites on the internet. | No | Yes |  | Unknown |
| [Web Scraping](https://apyhub.com/utility/sharpapi-web-scraping-api) | Extract structured data from any public URL | `apiKey` | Yes | Yes | Free |
| [Web Shrinker Thumbnail](https://docs.webshrinker.com/#thumbnail-api) | The Web Shrinker Thumbnail API allows developers to capture how a website or URL looks inside of a... | No | Yes |  | Unknown |
| [WebEngage](https://docs.webengage.com/docs/rest-api-getting-started) | WebEngage is a feedback and support tool that allows users to create custom questionnaires for... | No | Yes |  | Unknown |
| [Webflow Lucidtech](https://webflow.com) | Lucidtech API API | `OAuth` | Yes | Yes | Unknown |
| [Webix File Manager JavaScript](https://docs.webix.com) | The Webix File Manager JavaScript API is indirect access to this service, for integrating the Webix... | No | Yes |  | Unknown |
| [Webix Remote JavaScript](https://docs.webix.com) | The Webix Remote JavaScript API is indirect access to this service, for integrating the Webix... | No | Yes |  | Unknown |
| [Webix Server](https://docs.webix.com/) | The Webix Server API features full support for the REST load and save protocol. | No | Yes |  | Unknown |
| [Webix Storage](https://docs.webix.com) | The Webix Storage API works with application cache and browser local storages, for storing any data... | No | Yes |  | Unknown |
| [WebKnox Jokes](https://webknox.com/api) | Begun as a research project from the Royal Melbourne Institute of Technology and the University of... | No | Yes |  | Unknown |
| [WebKnox Keywords](https://webknox.com/api) | Begun as a research project from the Royal Melbourne Institute of Technology and the University of... | No | Yes |  | Unknown |
| [WebKnox Search](https://webknox.com/api) | Begun as a research project from the Royal Melbourne Institute of Technology and the University of... | No | Yes |  | Unknown |
| [WebPagetest](https://sites.google.com/a/webpagetest.org/docs/advanced-features/webpagetest-restful-apis) | WebPagetest is a service for measuring and analyzing the performance of web pages. | No | Yes |  | Unknown |
| [WebRTC](https://developer.mozilla.org/en-US/docs/Web/API/WebRTC_API) | WebRTC is an open source project that allows real time communication between Google, Mozilla and... | No | Yes |  | Unknown |
| [WebScraping.AI](https://webscraping.ai/) | Web Scraping API with built-in proxies and JS rendering | `apiKey` | Yes | Yes | Free |
| [WebSequenceDiagrams](https://www.websequencediagrams.com/embedding.html#rest) | WebSequenceDiagrams is a subscription-based sequence diagram creation service. | No | Yes |  | Unknown |
| [Webthumbnail.org](http://webthumbnail.org/api-reference) | Webthumbnail.org is a free webservice for capturing website screenshots. | No | Yes |  | Unknown |
| [WebTranslateIt](https://webtranslateit.com/docs/api) | WebTranslateIt is a translation management and software translation platform. | No | Yes |  | Unknown |
| [wercker](http://devcenter.wercker.com/api) | The wercker API is a preview version limited to accessing information about builds, deploys and... | No | Yes |  | Unknown |
| [WhatLanguage](https://www.whatlanguage.net/en/api/language_identification_documentation) | WhatLanguage.net is a language detection web service. | No | Yes |  | Unknown |
| [WhereDat](https://www.wheredatapp.com/developers) | The WhereDat API provides developers with a simple service for searching apps. | No | Yes |  | Unknown |
| [WhereDat Search](https://wheredatapp.com/developers) | With the WhereDat API, developers can search app data in the Android Play Store. | No | Yes |  | Unknown |
| [Whois Domain Availability](https://www.whoisxmlapi.com/domain-availability-api.php) | The Whois APIs return well-parsed whois fields in XML and JSON formats. | No | Yes |  | Unknown |
| [Whoxy Whois Lookup](https://www.whoxy.com/#api) | Whoxy is a WHOIS search engine. The Whoxy API is a hosted web service that queries WHOIS registries... | No | Yes |  | Unknown |
| [Wia](https://docs.wia.io) | Wia is a cloud based backend for developing Internet of Things applications. | No | Yes |  | Unknown |
| [Wibiya](http://wiki.wibiya.com/Main_Page) | Wibiya is a social toolbar provider for customers to integrate into their websites. | No | Yes |  | Unknown |
| [WickedAPI](http://www.wickedapi.com) | WickedAPI is a Boston based company that builds API-accessible developer tools. | No | Yes |  | Unknown |
| [Wigle](https://api.wigle.net/) | [Editor's Note: This API is still available, but is unsupported. | No | Yes |  | Unknown |
| [Wikia](http://answers.wikia.com/wiki/Wikianswers) | The Wikia Intelligent Search Extensions API is a JavaScript API that allows third-party sites to... | No | Yes |  | Unknown |
| [WikiLocation](https://wikilocation.org/documentation) | The WikiLocation API is for developers wishing to search for Wikipedia articles by location. | No | Yes |  | Unknown |
| [WikiPathways Webservices](https://wikipathways.org) | WikiPathways Webservices API | No | Yes |  | Unknown |
| [Windows GraphRbacManagementClient](https://windows.net) | The Graph RBAC Management Client | `OAuth` | Yes |  | Unknown |
| [Windows Store Submission](https://msdn.microsoft.com/windows/uwp/monetize/create-and-manage-submissions-using-windows-store-services#call-the-windows-store-submission-api) | The Windows Store Submission API allows developers to programmatically access their apps, add-ons,... | No | Yes |  | Unknown |
| [Wink App](http://docs.wink.apiary.io) | The Wink API allows developers to connect devices registered with Wink to users, apps, each other,... | No | Yes |  | Unknown |
| [Wix](https://dev.wix.com/docs) | Wix is a web development platform for users to create Flash and HTML5 websites, mobile sites, and... | No | Yes |  | Unknown |
| [WorldIP](http://www.wipmania.com/en/api) | WorldIP provides free geolocation tools enabling users to identify the exact geographic location of... | No | Yes |  | Unknown |
| [Worldwide Restaurants](https://rapidapi.com/ptwebsolution/api/worldwide-restaurants) | The Worldwide Restaurants API allows you to get complete information about restaurants all over the... | No | Yes |  | Unknown |
| [Wortschatz](https://www.myseosolution.de/php-wrapper-wortschatz-uni-leipzig-api) | Wortschatz (trans. Vocabulary) is a collection of German-language linguistics services hosted by... | No | Yes |  | Unknown |
| [Xamarin](https://docs.xamarin.com) | Xamarin is a web and mobile application building platform. | No | Yes |  | Unknown |
| [Xamarin Unified](https://developer.xamarin.com/guides/cross-platform/macios/unified) | Xamarin Unified API allows to share code between Mac and iOS systems, targeting apps of 32 bit and... | No | Yes |  | Unknown |
| [Xero Accounting](https://developer.xero.com) | Xero Accounting API API | `OAuth` | Yes |  | Unknown |
| [Xero Assets](https://developer.xero.com) | The Assets API exposes fixed asset related functions of the Xero Accounting application and can be... | `OAuth` | Yes |  | Unknown |
| [Xero Files](https://developer.xero.com) | These endpoints are specific to Xero Files API | `OAuth` | Yes |  | Unknown |
| [Xero Payroll AU](https://developer.xero.com) | This is the Xero Payroll API for orgs in Australia region. | `OAuth` | Yes |  | Unknown |
| [Xeround Cloud Database](http://xeround.com) | Xeround is a company providing a cloud database SaaS that is fully compatible with MySQL and is... | No | Yes |  | Unknown |
| [Xplenty](https://github.com/xplenty/xplenty-api-doc) | Xplenty is a cloud service that processes big data for large and small companies. | No | Yes |  | Unknown |
| [YaCy](https://wiki.yacy.net/index.php/Dev:API) | YaCy API aims to offer embedding into web pages using YaCy search API. | No | Yes |  | Unknown |
| [YADG](https://yadg.cc/api/v2/) | An API that scrapes music release data and renders it using different templates | `apiKey` | Yes |  | Free |
| [Yahoo Content Analysis](https://developer.yahoo.com/contentanalysis) | Yahoo Content Analysis replaces Yahoo!’s Term Extraction service and lets users perform content... | No | Yes |  | Unknown |
| [Yahoo Local Search](http://developer.yahoo.com/search/local/localSearch.html) | The Yahoo! Local Search APIs give users access to a comprehensive database of information and... | No | Yes |  | Unknown |
| [Yahoo Network Time](http://developer.yahoo.com/util/timeservice/V1/getTime.html) | Network Time is a simple utility service that provides the current time on Yahoo servers. | No | Yes |  | Unknown |
| [Yahoo Related Suggestions](http://developer.yahoo.com/boss/search) | The Related Suggestion service provides suggestions for queries related to the submitted query. | No | Yes |  | Unknown |
| [Yahoo Term Extraction](http://developer.yahoo.com/contentanalysis) | The Term Extraction API allows users to perform content analysis by providing a list of significant... | No | Yes |  | Unknown |
| [Yamli](http://www.yamli.com/api/docs) | The Yamli API allows users to search Arabic content using Latin characters. | No | Yes |  | Unknown |
| [YAMLine](https://yamline.com/json/) | Convert YAML to JSON (on-the-fly) | No | Yes | Yes | Free |
| [Yandex](https://api.yandex.ru/xml/doc/dg/concepts/about.xml) | XML API for Russian search engine. | No | Yes |  | Unknown |
| [Yandex Speller](https://api.yandex.ru/speller) | Yandex is the largest search engine in Russia and develops a number of Internet-based services and... | No | Yes |  | Unknown |
| [Yandex Translate](https://api.yandex.com/translate) | Yandex is a major Russia-based internet company and search engine with the stated mission of... | No | Yes |  | Unknown |
| [Yandex.Mail for Domain](https://yandex.com/dev/domain/) | The Yandex.Mail for Domain API integrates management of domain addresses and email accounts. | No | Yes |  | Unknown |
| [YClas](https://docs.yclas.com/api-documentation) | The YClas API integrates classifieds services into a website. | No | Yes |  | Unknown |
| [Yebol](http://www.yebol.com/yebol_apis.htm) | Yebol is a new semantic search engine that currently has 10 million search terms and growing. | No | Yes |  | Unknown |
| [Yellow](http://www.yellowapi.com) | YellowAPIâ„¢ is an application programming interface that allows you to stream top Canadian local... | No | Yes |  | Unknown |
| [Yes or No](https://ow.ly/FWNUW) | The simple Yes or No API is made for automating boolean decision making within mobile environments. | No | Yes |  | Unknown |
| [YesGraph](https://www.yesgraph.com/docs) | The YesGraph REST API allows developers to access and integrate the functionality of YesGraph with... | No | Yes |  | Unknown |
| [Yumpu Document](https://developers.yumpu.com) | Yumpu provides document conversion and publishing services, allowing organizations of all types to... | No | Yes |  | Unknown |
| [Zapier](https://zapier.com/developer) | Zapier is an application that integrates applications together. | No | Yes |  | Unknown |
| [Zapier Status](https://zapier.com/status) | Zapier is an application that integrates applications together. | No | Yes |  | Unknown |
| [Zatar](https://twitter.com/zatar_iot) | Zatar is an Internet of Things cloud based service, designed to ease collaboration and application... | No | Yes |  | Unknown |
| [ZEIT](https://zeit.co) | ZEIT API API | `Bearer` | Yes |  | Unknown |
| [Zenbu](http://www.zenbu.co.nz/about/xml) | The service gives access the content and functions of the provider's New Zealand-specific search... | No | Yes |  | Unknown |
| [Zenkit](https://zenkit.com/docs) | This API provides a way to interact with Zenkit online project management services, and allows you... | No | Yes |  | Unknown |
| [Zeno Aggregators API Service](https://zeno.fm) | Aggregators API | `apiKey` | Yes |  | Unknown |
| [Zenobase](https://zenobase.com/#/api) | Zenobase is service that provides users with the ability to store data, as well as aggregate and... | No | Yes |  | Unknown |
| [Zenoti](https://zenoti.com) | Our API documentation has been moved to https://docs.zenoti.com. | No | Yes |  | Unknown |
| [ZenRows](https://www.zenrows.com/) | Web Scraping API that bypasses anti-bot solutions while offering JS rendering, and rotating proxies | `apiKey` | Yes |  | Free |
| [Zenserp](https://docs.zenserp.com/#introduction) | The Zenserp API is an interface that developers can use to get and scrape search results in real... | No | Yes |  | Unknown |
| [ZetaPrints](https://www.zetaprints.com/help/category/api) | ZetaPrints is a web-to-print and imaging service. | No | Yes |  | Unknown |
| [ZipPlease](https://www.zipplease.com) | ZipPlease provides an API to let applications create Zip files instantly from existing online files. | No | Yes |  | Unknown |
| [Zoho Creator](https://www.zoho.com/creator/developers/signup.html) | Zoho Creator is a multi-language supported API that enables developers to create database... | No | Yes |  | Unknown |
| [Zoompf](https://zoompf.com) | Zoompf provides web performance optimization products and services. | No | Yes |  | Unknown |
| [Zuplo](https://zuplo.com/) | API platform for Development, Deployment, and Docs - add auth, rate-limiting, and monetization fast | `apiKey` | Yes |  | Free |

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