1496 APIs in this category.
← Open Source Projects | Patent →
| API | Description | Auth | HTTPS | CORS | Pricing |
|---|---|---|---|---|---|
| (a9t9) OCR | The a9t9 OCR API offers free image to text conversions. | No | Yes | Unknown | |
| 10,000ft | The 10,000ft REST API provides developers access to 10,000ft resources, such as projects, users,... | apiKey |
Yes | Paid | |
| 100TB | 100TB is a premium web server hosting service featuring fully-automated, dedicated servers. | apiKey |
Yes | Paid | |
| 10to8 Booking | This REST API allows its availability to be queried and appointments to be booked. | apiKey |
Yes | Freemium | |
| 1Pilot | 1Pilot is a website management service with dashboard integration. | No | Yes | Unknown | |
| 1WorldSync Content1 | This Json API will allow you to exchange product content using 1WorldSync's product information... | No | Yes | Unknown | |
| 254 Shades of Gray | The 254 Shades of Gray API returns XML or JSON objects for shades of gray. | No | Yes | Unknown | |
| 30 Digits Web Extractor | This web harvesting tool has an API which allows one to start, stop, and monitor spider jobs from... | No | Yes | Unknown | |
| 3Cols | 3Cols is a cloud based snippet manager allowing you to share code snippets with a team enabling... | No | Yes | Unknown | |
| 3D Hubs Teleport | The 3D Hubs Teleport API allows anyone to send their model to one of 16,000+ public printing... | No | Yes | Unknown | |
| 4h URL Shortener | The 4h.net API can be integrated with applications to automate URL shortener capabilities. | No | Yes | Unknown | |
| 4PSA DNS Manager | This API allows third�party products to interact with the 4PSA DNS Manager system. | No | Yes | Unknown | |
| 5pm | 5pm is a project management and time management tool that supports team collaboration and provides... | No | Yes | Unknown | |
| A-Dato Lynx | The service provides hosted scheduling and collaboration tools for managing projects of many types. | No | Yes | Unknown | |
| Abstract | Abstract is a platform dedicated to centralize Sketch and Adobe XD files in a collaborative fashion... | No | Yes | Unknown | |
| accessplanit | accessplanit offers a business management system designed for training companies and learning... | No | Yes | Unknown | |
| AChecker | The service provides analysis and validation of accessibility of web resources for users with... | No | Yes | Unknown | |
| Actionstep | The Actionstep API enables developers to integrate a legal practice management system with their... | No | Yes | Unknown | |
| actiTIME Timesheet | The actiTIME Open API is a tool that allows you to gain direct access to your data and interact... | No | Yes | Unknown | |
| ActiveBuilding | ActiveBuilding is a platform for property management and resident communications. | No | Yes | Unknown | |
| Actual Reports | Actual Reports Designer is a web based design tool that allows users to create custom printouts and... | No | Yes | Unknown | |
| AddThis Content Feeds | The AddThis Content Feeds API allows users to create RSS and JSON feeds of their sites' top content. | No | Yes | Unknown | |
| AddThis Trending Content Box | The Trending Content Box is a widget that features top content from the user's site. | No | Yes | Unknown | |
| Adobe Campaign Standards | The Adobe Campaign Standards API allows managing profiles, managing subscriptions to services,... | No | Yes | Unknown | |
| Adobe Feeds | The Adobe Feeds API allows developers to interact with Adobe Feeds and extract data from the... | No | Yes | Unknown | |
| Adobe Sign | The Adobe Sign API in REST architecture integrates electronic signature features. | No | Yes | Unknown | |
| Affectiva Affdex | Affdex by Affectiva is a facial expression analysis tool, used by researchers and marketers alike... | No | Yes | Unknown | |
| AfterShip Webhooks | This API allows acces to AfterShip shipment tracking and notifications and is designed for... | No | Yes | Unknown | |
| AgentRank | Access to real estate agent sales, forecasts, and reviews from AgentRank.com. | No | Yes | Unknown | |
| Agworld | The Agworld API retrieves collaborative farming solutions for farmers and agronomists. | No | Yes | Unknown | |
| Ai Applied Text Label | Ai Applied provides technologies and services that help users obtain valuable insights from their... | No | Yes | Unknown | |
| Airhint Airfare Predictions | The Airhint Airfare Predictions REST API provides airfare predictions, recommendations, and stats. | No | Yes | Unknown | |
| Airtel IP | IP Geolocation API. Collecting data from multiple sources | No | Yes | Unknown | |
| Akismet | From their site: Akismet is basically a big machine that sucks up all the data it possibly can,... | No | Yes | Unknown | |
| Alice Guest | The Alice Guest API returns hotel guest data in JSON format. | No | Yes | Unknown | |
| Alice Staff | The Alice Staff API returns JSON data to manage hotel reservations, hotel operations, and create... | No | Yes | Unknown | |
| ALICE Staff Webhooks | The ALICE Staff Webhooks API allows you to search for configured events Webhooks for hotel data. | No | Yes | Unknown | |
| AllRecharge | AllRecharge API is a service for B2B that aggregates online payment and mobile recharge services... | No | Yes | Unknown | |
| Amadeus Flight Low-Fare Search | Amadeus APIs connect you to the rich travel data that powers the world’s top travel sites. | No | Yes | Unknown | |
| Amazon Mechanical Turk | From their site: Amazon Mechanical Turk provides a web services API for computers to integrate... | No | Yes | Unknown | |
| Amazon Moments Reward | The Amazon Rewards API allows you to reward your customers with physical or digital items and... | No | Yes | Unknown | |
| Amazon Route 53 | Amazon's service provides for management of DNS records, including registering domain names,... | No | Yes | Unknown | |
| Amazon Web Services Health | The Amazon Web Services Health REST API allows developers to access and integrate the functionality... | No | Yes | Unknown | |
| Amdoren Time Converter | The Amdoren Time Converter API allows developers to convert the date and time of one location to... | No | Yes | Unknown | |
| Améthyste | Generate images for Discord users | apiKey |
Yes | Unknown | |
| Ami-Link Hide | The Ami-Link API lets users protect files that are posted on file-sharing sites such as rapidshare... | No | Yes | Unknown | |
| Amplifier | Manage your Amplifier account - send us orders for fulfillment, update your item catalog, subscribe... | No | Yes | Unknown | |
| AmplifyReach Core NLP | The AmplifyReach Core NLP API enables a conversational automation platform designed for sales,... | No | Yes | Unknown | |
| Amsterdam Airport Schiphol Flight | The Amsterdam Airport Schiphol Flight API returns data about current and scheduled flights to and... | No | Yes | Unknown | |
| Anders Pink | The Anders Pink API returns JSON formats with news services that can be customized for office teams. | No | Yes | Unknown | |
| AniAPI | Anime discovery, streaming & syncing with trackers | OAuth |
Yes | Yes | Unknown |
| Animal Crossing: New Horizons | API for critters, fossils, art, music, furniture and villagers | No | Yes | Unknown | |
| AnimeChan | Anime quotes (over 10k+) | No | Yes | No | Unknown |
| AnimeFacts | Anime Facts (over 100+) | No | Yes | Yes | Unknown |
| AnonFiles | Upload and share your files anonymously | No | Yes | Unknown | |
| Any Ipsum | Any Ipsum is an API designed to enable developers to build customized placeholder text. | No | Yes | Unknown | |
| Anyline | The Anyline API provides OCR to scan documents from mobile devices, scanning and processing... | No | Yes | Unknown | |
| anything2pdf | The anything2pdf API lets you convert your data to a PDF document online with this free online PDF... | No | Yes | Unknown | |
| Apaleo Core | The Apaleo Core Inventory API provides hotel management features including rooms to rent, parking... | No | Yes | Unknown | |
| Apaleo Scheduler | The Apaleo Scheduler API aims to automate property's data including check in, check out, audit, and... | No | Yes | Unknown | |
| API Den OCR | This API enables applications to have OCR capabilities. | No | Yes | Unknown | |
| api-covid-19-india | The api-covid-19-india API retrieves COVID-19 information from The Ministry of Health and Family... | No | Yes | Unknown | |
| API-Sports COVID-19 | The API-Sports COVID-19 API allows developers to follow the progress of the coronavirus around the... | No | Yes | Unknown | |
| API2Task | API2Task API intends to provide a way to access and manage data from task management platforms. | No | Yes | Unknown | |
| APIfy | APIfy converts data that exists in HTML tables and Wiki pages into JSON APIs. | No | Yes | Unknown | |
| apilayer aviationstack | Real-time Flight Status & Global Aviation Data API | OAuth |
Yes | Unknown | |
| apilayer ipstack | Locate and identify website visitors by IP address | apiKey |
Yes | Unknown | |
| apilayer mailboxlayer | Email address validation | apiKey |
Yes | Unknown | |
| apilayer numverify | Phone number validation | apiKey |
Yes | Unknown | |
| apilayer pdflayer | HTML/URL to PDF | apiKey |
Yes | Unknown | |
| APIphany | APIphany is an API management and hosting platform. | No | Yes | Unknown | |
| App Details from PlayStore | An API that returns real-time details of any android app & also can be used in combination with... | No | Yes | Unknown | |
| Apple Swift | Swift from Apple is a programming language for Cocoa and Cocoa Touch. | No | Yes | Unknown | |
| AppleTree | AppleTree is a web application for creating family trees. | No | Yes | Unknown | |
| AR24 | The AR24 API retrieves mail data for users in Europe. | No | Yes | Unknown | |
| Argentinian Car Registration | The Argentinian Car Registration API allows developers to get more than 50 data fields - including... | No | Yes | Unknown | |
| ARIN Reg-RWS | The service provides a registry of routing information for internet traffic that resolves web URL... | No | Yes | Unknown | |
| ARMS Data GraphQL | The USDA's Agriculture Resource Management Survey (ARMS) API returns data to create apps that... | No | Yes | Unknown | |
| ArubaOS | The ArubaOS REST API allows developers to access and integrate the functionality of ArubaOS with... | No | Yes | Unknown | |
| Assembled | Assembled is a modern workforce management platform built for modern support teams. | No | Yes | Unknown | |
| Associated Press Elections | The Associated Press Elections API retrieves elections data including race information about each... | No | Yes | Unknown | |
| Associated Press Metadata | The Associated Press is the world's oldest and largest newsgathering organization. | No | Yes | Unknown | |
| athenahealth | This API allows programatic access to athenahealth's EMR, practice management, and other products. | No | Yes | Unknown | |
| Athenahealth FHIR DSTU2 | These endpoints are a partial implementation of the FHIR DSTU2 specification. | No | Yes | Unknown | |
| Atlassian Confluence | The Atlassian JIRA REST API handles basic HTTP requests with responses in JSON. | No | Yes | Unknown | |
| Atlassian Confluence SPM | This API allows you to manage your Confluence account and apps remotely - without needing to be... | No | Yes | Unknown | |
| Atlassian JIRA | The Atlassian JIRA REST API is for interfacing with JIRA's project and issue tracking application. | No | Yes | Unknown | |
| Atlassian JIRA Service Desk Cloud REST | This API allows developers to integrate JIRA Service Desk with other applications, and for... | No | Yes | Unknown | |
| Atlassian Stash Branch Utilities REST | Atlassian Branch Utilities REST API allows for managing repository branches in Stash repositories... | No | Yes | Unknown | |
| Attio | The Attio API retrieves workflow data to customize customer relationship management systems. | No | Yes | Unknown | |
| AuctionInc Shipping | AuctionInc provides e-commerce and auction tools, including a full-featured shipping rate... | No | Yes | Unknown | |
| Authentise 3DIAX | The Authentise 3DIAX API allows developers to maintain a large database of model data in the cloud. | No | Yes | Unknown | |
| Authentise Design Streaming | Authentise is a service that helps companies distribute 3D design products for purchase and... | No | Yes | Unknown | |
| Authentise Slicing Service | The Authentise Slicing Service allows developers to enable tool-path generation in the cloud. | No | Yes | Unknown | |
| Authentise Vision Job | The Authentise Vision Job API allows developers to manage the computer vision service of Authentise. | No | Yes | Unknown | |
| Autodesk BIM360 Glue | The service provides ability to share design drawings and models created using the provider's... | No | Yes | Unknown | |
| Autodesk Forge 3D Print | The Autodesk Forge 3D Print API offers 3D printing functionality to existing applications. | No | Yes | Unknown | |
| Autodesk Forge Viewer | The Autodesk Forge Viewer API (formerly View and Data API) allows applications to integrate... | No | Yes | Unknown | |
| Automattic Wordpress Widgets | Wordpress developers could find Automattic API useful, since this application offers widgets'... | No | Yes | Unknown | |
| AutoTagger | The AutoTagger API will help developers with data mining needs. | No | Yes | Unknown | |
| Aweform | The Aweform API gives read only access to Workspaces, Forms and Responses in Aweform. | No | Yes | Unknown | |
| Axle | API Axle is an API management and hosting solution. | No | Yes | Unknown | |
| Babelfly | The Babelfly API in both HTTP and Java provide developers access to the functionality of Babelfly... | No | Yes | Unknown | |
| Backorder | Dropcatch.com's Backorder API is a RESTful API that allows for functions to support backordering... | No | Yes | Unknown | |
| Backpack | Backpack is a web-based personal information manager small business. | No | Yes | Unknown | |
| Baidu Customized Translation | The Baidu Customized Translation API allows developers to access multilingual translation services... | No | Yes | Unknown | |
| Baidu General Translation | The Baidu General Translation API provides multilingual translation services via REST calls. | No | Yes | Unknown | |
| Baidu Language Recognition | The Baidu Language Recognition API allows developers to identify the language that a given piece of... | No | Yes | Unknown | |
| BallotReady | The BallotReady API retrieves elections, polling places, candidates, measures, elected officials,... | No | Yes | Unknown | |
| Barchart OnDemand getNewsCatagories | Barchart OnDemand provides data pertaining to the agriculture, media, financial, and energy... | No | Yes | Unknown | |
| Barchart OnDemand getNewsSource | Barchart OnDemand provides data pertaining to the agriculture, media, financial, and energy... | No | Yes | Unknown | |
| Basecamp 3 | The Basecamp 3 API allows developers to interact with their shared online work spaces... | No | Yes | Unknown | |
| BayFiles | Upload and share your files | No | Yes | Unknown | |
| Bazaarvoice Curations | The Bazaarvoice Curations API allows developers to display consumer-generated content (CGC) in... | No | Yes | Unknown | |
| Bazaarvoice Displayable Content Export | The Bazaarvoice Displayable Content Export API allows developers to bulk request Bazaarvoice... | No | Yes | Unknown | |
| Bazaarvoice Privacy | The Bazaarvoice Privacy API allows developers to integrate Bazaarvoice into their General Data... | No | Yes | Unknown | |
| Bazaarvoice Product Sentiment Insights | The Bazaarvoice Product Sentiment Insights API allows developers to request Bazaarvoice product... | No | Yes | Unknown | |
| Bazaarvoice Response | The Bazaarvoice Response API gives developers programmatic access to review responses. | No | Yes | Unknown | |
| BazQux Reader | BazQux Reader is a feed reader that displays blog posts and comments in one seamless stream. | No | Yes | Unknown | |
| BCL easyPDF | BCL easy PDF API allows developers to use all the advantages of our modern technology with the... | No | Yes | Unknown | |
| Beach and Creek Monitoring Results San Mateo | The Beach and Creek Monitoring Results San Mateo API returns water data in JSON, CSV, and XML... | No | Yes | Unknown | |
| Beeminder | Beeminder is a goal tracking service that allows users to set goals and track their progress... | No | Yes | Unknown | |
| Beetrack | The Beetrack API returns delivery and logistics data. | No | Yes | Unknown | |
| Bestow | Bestow Quote REST API allows access to customizable quote solutions for your brand. | No | Yes | Unknown | |
| BetaSignal | BetaSignal is a news aggregator/memetracker focusing on technology, science, environment and space. | No | Yes | Unknown | |
| Betfair Accounts | This REST API gives you access to the current Accounts for the Global & Australian Exchange... | No | Yes | Unknown | |
| Betfair Betting | The Betfair Betting API allows developers to retrieve navigation data, odds, and volumes... | No | Yes | Unknown | |
| Betfair Heartbeat | This API allows customers to automatically cancel their unmatched bets if they lost connectivity... | No | Yes | Unknown | |
| Betfair Timeform | Betfair is an online gambling operator in the UK; it allows customers to bet at odds set by... | No | Yes | Unknown | |
| Bibler | The Bibler API provides full-text access to information searches and English translation... | No | Yes | Unknown | |
| Biblio Commons | Biblio Commons is a social virtual library that helps users to integrate Biblio Commons data into a... | No | Yes | Unknown | |
| BigDataCloud | Provides fast and accurate IP geolocation APIs along with security checks and confidence area | apiKey |
Yes | Unknown | |
| BigDataCloud Client Info | The Free Client Info API is a fast and simple way to establish the public IPv4 address and browser... | No | Yes | Unknown | |
| Bike Index | With Bike Index, users can register bicycles to protect them from burglars. | No | Yes | Unknown | |
| BikeRadar | The BikeRadar API allows developers to find public bicycles in any part of the world. | No | Yes | Unknown | |
| BikeWise | The BikeWise API returns GeoJSON data with bike incidents, including IP address, address, zipcode,... | No | Yes | Unknown | |
| Billingbooth | With the Billingbooth API, users can access the Billingbooth billing & invoicing engine. | No | Yes | Unknown | |
| Billy | Billy's Billing creates bookkeeping software for small businesses and startups. | No | Yes | Unknown | |
| Biriyani As A Service | Biriyani images placeholder | No | Yes | No | Unknown |
| Bit.ly | bit.ly allows users to shorten, share, and track links (URLs). | No | Yes | Unknown | |
| Bitext | Text analysis API build on a linguistic basis. Log in for your free API Key at https://api.bitext. | No | Yes | Unknown | |
| BitFactura | The BitFactura API allows developers to integrate BitFactura's online invoicing functions and... | No | Yes | Unknown | |
| Bitl.in | Bitl.in is a link (URL) shortening service that allows users to shorten URLs, as well as adding... | No | Yes | Unknown | |
| Blake.lt | Blake.lt is a Lithuanian social network and microblogging service. The Blake. | No | Yes | Unknown | |
| Blik | The Blik REST API allows developers to access and integrate the functionality of Blik with other... | No | Yes | Unknown | |
| BlinkStick | The Blinkstick API allows changing the color or the publicly available Blinkstick device via HTTP... | No | Yes | Unknown | |
| Block Avenue Neighborhood Reviews | The BlockAvenue APIs are RESTful APIs and users can retrieve neighborhood "BlockScores" and... | No | Yes | Unknown | |
| Blue Button | The Centers for Medicare and Medicaid Services (CMS) Blue Button API enables Medicare beneficiaries... | No | Yes | Unknown | |
| Bob's Burgers | Bob's Burgers API | No | Yes | Yes | Unknown |
| Boo-box | From their site: Use this public API and use our wonderful product recommendation services to make... | No | Yes | Unknown | |
| Bookeo | This API is based on REST principles and returns various booking data for availability, bookings,... | No | Yes | Unknown | |
| Booker | [This API is no longer available. Its functions have been split among the following APIs: Booker... | No | Yes | Unknown | |
| BOT libre! | BOT libre allows you to create your own artificial intelligent chat bot, train them, and share them... | No | Yes | Unknown | |
| BotMakr | BotMakr's API (currently in beta) allows developers to interact with bots on BotMakr.net. | No | Yes | Unknown | |
| BotPlatform | The BotPlatform API is a RESTful service for service provider to manage resources. | No | Yes | Unknown | |
| Boulevard Foresight | The Boulevard Foresight API predicts location intelligence in residential, commercial, and... | No | Yes | Unknown | |
| Bower | The Bower API aims to consolidate the entire application development process by tracking libraries,... | No | Yes | Unknown | |
| Box File Preview | The Box File Preview API allows you to generate an embeddable file preview experience that supports... | No | Yes | Unknown | |
| Box Upload | The Upload API allows users the ability to add a new file to the Box platform. | No | Yes | Unknown | |
| Boxalino Personalization | Boxalino is a website personalization platform based in Switzerland. | No | Yes | Unknown | |
| Brainbi Price | Brainbi offers state of the art analytics and artificial intelligence solutions for small and... | No | Yes | Unknown | |
| Breaking Bad | Breaking Bad API | No | Yes | Unknown | |
| Breeze CHMS | The Breeze CHMS API returns JSON data to organize customer relationship management for churches. | No | Yes | Unknown | |
| Bric | Bric is a provider of analytical project management solutions. | No | Yes | Unknown | |
| Bring Reports | Bring Cargo is Norwegian company that specializes in Logistics and Transportation. | No | Yes | Unknown | |
| Bring Tracking | Bring Cargo is Norwegian company that specializes in Logistics and Transportation. | No | Yes | Unknown | |
| Bringg | The Bringg API allows developers to access and integrate the functionality of Bringg with other... | No | Yes | Unknown | |
| Budbee | The Budbee API returns home product delivery data into applications, including collection points,... | No | Yes | Unknown | |
| BuddyNS | BuddyNS API allows the management of associated zones, verification of registry, authority, and... | No | Yes | Unknown | |
| BudURL | BudURL is a fee-based URL shortener with advanced features. | No | Yes | Unknown | |
| Bugsnax | Get information about Bugsnax | No | Yes | Yes | Unknown |
| BuiltWith | BuiltWith provides technology and SEO profiles for any site on the Internet. | No | Yes | Unknown | |
| BuiltWith Lists | The BuiltWith Lists API integrate lists of websites in JSON and XML formats. | No | Yes | Unknown | |
| BuiltWith Relationships | The BuiltWith Relationships API integrates the connection between website tagging and IP addresses. | No | Yes | Unknown | |
| Bulawayo24 News | Bulawayo24 is an online news service covering Bulawayo and the rest of Zimbabwe. | No | Yes | Unknown | |
| BuycPanel | BuycPanel is a cPanel license vendor, with an emphasis on instant license activation, price match... | No | Yes | Unknown | |
| Byggeweb | Byggeweb (known in English as Docia) is a Danish company that provides the construction industry... | No | Yes | Unknown | |
| Byte Plant Address Verification Online | Address Verification Online API verifies national or international postal addresses to confirm they... | No | Yes | Unknown | |
| Calameo | Calam�o is a program that lets users upload documents from many major formats and create... | No | Yes | Unknown | |
| CalcFusion | The CalcFusion API is a REST API which enables automation of Excel spreadsheets. | No | Yes | Unknown | |
| California Coastal Commission Locations | The California Coastal Commission Locations API returns JSON data after making GET requests. | No | Yes | Unknown | |
| Canada Holidays | This API lists all 28 public holidays for all 13 provinces and territories in Canada, including... | No | Yes | Unknown | |
| Canny | The Canny API captures feedback in a place to make better product decisions. | No | Yes | Unknown | |
| Capital One Credit Offers | The Credit Offers API provides developers with tools to offer Capital One credit products (credit... | No | Yes | Unknown | |
| Capital One Rewards | The Rewards API provides developers a simple, secure way to obtain detailed information about their... | No | Yes | Unknown | |
| Capital One SwiftID | The SwiftID API lets developers integrate their application with an extra layer of security. | No | Yes | Unknown | |
| Capsulink | The Capsulink API allows developers to create their own shortened URLs that include custom branded... | No | Yes | Unknown | |
| Captcha Solutions | This RESTful Captcha Solutions API is designed to solve a large variety of a captcha challenges for... | No | Yes | Unknown | |
| CAPTCHAs.IO | The CAPTCHAs.IO API provides RESTful access to all of CAPTCHAs.io's captcha-solving methods. | No | Yes | Unknown | |
| Car Insurance Italy | This is an API that can determine the current insurer, and insurance expiry date of a vehicle... | No | Yes | Unknown | |
| Car Registration Pakistan | pk.carregistrationapi.com offers an API that can check both car information and car ownership data... | No | Yes | Unknown | |
| Carriots | Carriots is a platform that helps people build applications for the internet. | No | Yes | Unknown | |
| Cars.com Lead Capture | Cars.com's Lead Capture API allows users to submit leads to Cars.com's Lead Capture Service. | No | Yes | Unknown | |
| Catapush | The Catapush API allows users to integrate the ability to deliver transactional push notifications... | No | Yes | Unknown | |
| Catbox | The Catbox API returns upload data for files and URLs. | No | Yes | Unknown | |
| Catboy | Neko images, funny GIFs & more | No | Yes | Yes | Unknown |
| CatechizeMe | Catechisms are learning tools for Christians that teach core religious tenets by phrasing them in... | No | Yes | Unknown | |
| Celltick Start Magazine | Start Magazine is a Magazine as a Service solution that allows you to get licensed and premium... | No | Yes | Unknown | |
| Cenit IO | The Cenit IO API is an open platform for data and business integration (iPaaS). | No | Yes | Unknown | |
| ChannelRUSH Channel Manager | The ChannelRUSH Channel Manager API uses SOAP messaging protocol and HTNG v1. | No | Yes | Unknown | |
| Chat Center | The Chat Center REST API allows developers to access and integrate the functionality of Chat Center... | No | Yes | Unknown | |
| Check That Bike UK | Check That Bike UK API available in JSON protocol can be accessible using a Key. | No | Yes | Unknown | |
| Checkiday - National Holiday | Industry-leading Holiday API. Over 5,000 holidays and thousands of descriptions. | apiKey |
Yes | Unknown | |
| Checkly | Checkly is a service for DevOps teams to monitor APIs and site click flows. | No | Yes | Unknown | |
| Checkvist | The Checkvist Open API is a RESTful API that returns data in either JSON or XML format. | No | Yes | Unknown | |
| Cheddar | Cheddar allows for task management with an emphasis on event syncing between multiple devices. | No | Yes | Unknown | |
| Chef Supermarket | The Chef Supermarket API returns automated data for DevOps applications in JSON format. | No | Yes | Unknown | |
| Chimp Rewriter | The Chimp Rewriter REST API allows developers to access and integrate the functionality of Chimp... | No | Yes | Unknown | |
| CHINO.io | Chino.io API provides to health application developers secure API and storage for health data... | No | Yes | Unknown | |
| CHOGOON URL Shortener | The CHOGOON URL Shortener API returns a JSON formatted response of the requested URL information to... | No | Yes | Unknown | |
| Chuck Norris Database | Jokes | No | No | Unknown | |
| Church Community Builder | This PHP API allows you access to Church Community Builder and is free for all church partners. | No | Yes | Unknown | |
| ChurchApp | ChurchApp is a cloud-based church management system designed for churches of all sizes and... | No | Yes | Unknown | |
| Cielo 24 | Cielo 24 offers a JSON API to integrate transcription, captioning, and word extraction into... | No | Yes | Unknown | |
| Cimpress Open Print Fulfillment | The Cimpress Open Print Fulfillment API provides a way for end-users to purchase the user's art and... | No | Yes | Unknown | |
| City of Calgary Traffic Cameras | The City of Calgary Traffic Cameras API retrieves data with traffic camera images of current road... | No | Yes | Unknown | |
| City of Chicago 311 | The City of Chicago 311 API allows developers to make requests directly to 311. | No | Yes | Unknown | |
| CKMIO Chat | The CKMIO Chat API allows developers to integrate identity-based communication systems into their... | No | Yes | Unknown | |
| Clara.io | Clara.io is a browser-based 3D modeling, animation, and rendering tool that works on Chrome,... | No | Yes | Unknown | |
| Classy | The Classy REST API allows developers to access and integrate the functionality of Classy with... | No | Yes | Unknown | |
| CleanSpeak | CleanSpeak offers content filtering and community moderation tools to existing applications and... | No | Yes | Unknown | |
| Clearcover | The Clearcover API allows you to offer affordable car insurance online and generate new income... | No | Yes | Unknown | |
| ClearPoint Strategy | The ClearPoint Strategy API retrieves management reporting to strategize work hacks. | No | Yes | Unknown | |
| Clearvoice Surveys | The service allows researchers to commission surveys which users complete to earn rewards in... | No | Yes | Unknown | |
| Cleverbot | This is an unaffiliated API. Cleverbot is a virtual AI application that can communicate with users... | No | Yes | Unknown | |
| CleverPush | CleverPush is a push notification provider based in Germany. | No | Yes | Unknown | |
| Cleverscript | Cleverscript is a virtual AI mechanism created with Javascript. | No | Yes | Unknown | |
| ClickBook | The ClickBook.net SOAP WebService API provides comprehensive access to the ClickBook engine for... | No | Yes | Unknown | |
| ClickToAddress Global Address | The ClickToAddress Global Address API finds international postal addresses, auto-completes, and... | No | Yes | Unknown | |
| Clicky | From their site: The Clicky API allows you to extract a wide range of data from your web site... | No | Yes | Unknown | |
| ClicRDV | ClicRDV is an appointment management software. | No | Yes | Unknown | |
| ClientBill | ClientBill is an online invoicing and payment processing service. | No | Yes | Unknown | |
| Climate FieldView Platform | The Climate FieldView Platform API retrieves crop performance in agricultural fields, based on... | No | Yes | Unknown | |
| ClimBiz ADAPT Climate Projection | The ClimBiz ADAPT Climate Project API allows users to access climate projection information for... | No | Yes | Unknown | |
| Close CRM | The Close CRM API returns customer relationship management data to automate sales. | No | Yes | Unknown | |
| Clothes2order | Clothes2order is an online supplier of printed and embroidered clothing. | No | Yes | Unknown | |
| Cloud Elements | The Cloud Elements REST API allows developers to access and integrate the functionality of Cloud... | No | Yes | Unknown | |
| Cloud Elements Hub | The Cloud Elements Hub REST API allows developers to access and integrate the functionality of... | No | Yes | Unknown | |
| Cloudbeds | The Cloudbeds API helps developers create hospitality management platforms, and offers access to... | No | Yes | Unknown | |
| CloudBrowser Screenshot and PDF Creation | The CloudBrowser Screenshot and PDF Creation API in REST architecture support HTTP requests and API... | No | Yes | Unknown | |
| CloudFlare Hosting Provider | CloudFlare is a content delivery network that both increases website performance through faster... | No | Yes | Unknown | |
| Cloudmersive Barcode | The Cloudmersive Barcode API accepts JSON and text requests and responses and it can be accessed... | No | Yes | Unknown | |
| Cloudmersive Convert | The Cloudmersive Convert API supports URI Query String /CRUD requests and returns JSON, CSV, XML,... | No | Yes | Unknown | |
| Cloudmersive Natural Language Processing (NLP) | The powerful Cloudmersive Natural Language Processing (NLP) API enables part-of-speech (POS)... | No | Yes | Unknown | |
| CloudShark | The CloudShark API allows integration with other systems using an API token key as the user... | No | Yes | Unknown | |
| CloudShark Enterprise | The CloudShark API allows integration with other systems using an API token key as the user... | No | Yes | Unknown | |
| CloudSponge Address Book | CloudSponge is online software that lets users import address book contacts from most major... | No | Yes | Unknown | |
| Cloudwords | Cloudwords offers a web based translation management platform that enables the customer to select... | No | Yes | Unknown | |
| Cnobin | Cnobin is a domain registration service provider and reseller platform. | No | Yes | Unknown | |
| Cobrowse | Cobrowse is a live support platform designed for mobile. | No | Yes | Unknown | |
| CodeREADr | The service enables barcode scanning by mobile phones using built-in cameras without additional... | No | Yes | Unknown | |
| CognitiveSEO | The Cognitive SEO API integrates tools that aim to increase web traffic. | No | Yes | Unknown | |
| Cognito Identity Verification | The Cognito Identity Verification API verifies customers, expands identity search, and optimizes... | No | Yes | Unknown | |
| Colorfy It | Colorfy It is a web application that lets users copy and paste website URLs into a box, and it... | No | Yes | Unknown | |
| ComEd Hour Average | The ComEd Hour Average API returns JSON, text, and RSS formats with the 5-minute average price for... | No | Yes | Unknown | |
| Comidor | Comidor is a cloud software suite for business collaboration and project management. | No | Yes | Unknown | |
| Comindware | Comindware is a provider of web based work management software. | No | Yes | Unknown | |
| CompanyMood | The CompanyMood API returns feedback and reviews data from employees aiming to increase... | No | Yes | Unknown | |
| Compare Flight Prices | API for comparing flight prices across platforms | apiKey |
Yes | Unknown | |
| Compete | From their site: Compete SnapShot provides information for every site on the internet including... | No | Yes | Unknown | |
| Console Connect | The Console Connect API focuses on helping developers configure network services and retrieve... | No | Yes | Unknown | |
| Contact-Form-Mailer | This service allows you to add the Contact-Form-Mailer API to your Javascript applications. | No | Yes | Unknown | |
| Contacts+ | The Contacts+ API retrieves JSON data to manage contacts for individuals, teams, & small businesses. | No | Yes | Unknown | |
| Content Delivery | Contentful's Content Deliverly API offers a way to deliver content to mobile apps, websites and... | No | Yes | Unknown | |
| Content Management | Content Management is a RESTful API by Contentful. | No | Yes | Unknown | |
| Contentful Management | The Contentful Management API is a REST API for managing content. | No | Yes | Unknown | |
| Contentful Preview | The Contentful Preview API helps developers to view unpublished content, delivering drafts for... | No | Yes | Unknown | |
| ContentTools | The ContentTools API by Anthony Blackshaw, integrates content editing into HTML applications. | No | Yes | Unknown | |
| ContextualWeb News | News API is an easy to use RESTful service that provides up-to-date and highly relevant results for... | No | Yes | Unknown | |
| Copyleaks Plagiarism Checker | The Copyleaks Plagiarism Checker API allows developers to integrate plagiarism checking... | No | Yes | Unknown | |
| Cornerstone On Demand Web Services | The Cornerstone On Demand Web Services API provides the tools for setting and getting objects... | No | Yes | Unknown | |
| Coronavirus Flutter Course | The Coronavirus Flutter Course API provides updated confirmed cases related to COVID-19. | No | Yes | Unknown | |
| CorpWatch | CorpWatch is a non-profit organization that uses investigative research and journalism to expose... | No | Yes | Unknown | |
| COVID-19 Health Hotline | The COVID-19 Health Hotline API allows developers to input a zip code and get information about... | No | Yes | Unknown | |
| Covid-19 Mobility Tracker | The Covid-19 Mobility Tracker API allows developers to retrieve aggregated activity for each... | No | Yes | Unknown | |
| COVID-19 Simple | The COVID-19 Simple API returns Coronavirus information including total cases, casualties, active... | No | Yes | Unknown | |
| COVID-19-REPORT- | The COVID-19-REPORT-API keep track of COVID-19 cases worldwide. | No | Yes | Unknown | |
| COVID19 RUS | The COVID19 RUS API allows developers to get coronavirus information for Russia. | No | Yes | Unknown | |
| cPanel | cPanel's XML API allows you to issue commands to cPanel and WHM using the XML language, while the... | No | Yes | Unknown | |
| cQuery | cQuuery is an online Content Query Engine uses CSS Selectors to extract content from live web pages. | No | Yes | Unknown | |
| Creative Commons | Creative Commons provides free tools that let authors, scientists, artists, and educators easily... | No | Yes | Unknown | |
| Credly Members | With Credly Members API, developers can access data from member profiles based on a known e-mail... | No | Yes | Unknown | |
| CricAPI QR Code Generator | Wherrelz provides IT, web development, and CRM solutions for businesses. | No | Yes | Unknown | |
| CrisisNET | CrisisNET helps app-makers and journalists quickly find and access information on crises occurring... | No | Yes | Unknown | |
| CrowdfundHQ | The CrowdfundHQ API returns JSON formats with crowdfunding data including campaigns, contributions,... | No | Yes | Unknown | |
| Crowdin | Crowdin brings seamless and continuous localization for apps, websites, games, help desks, and more. | No | Yes | Unknown | |
| Crowdsignal | The Crowdsignal API allows developers to access Crowdsignal's methods for creating and managing... | No | Yes | Unknown | |
| Crummy Downhill | Downhill is an online tool for finding the shortest path between two weblogs or for finding weblogs... | No | Yes | Unknown | |
| CSS Mania | The API provides access to the CSS showcases that are submitted to CSS Mania. | No | Yes | Unknown | |
| cTuning | cTuning is a collaborative, open-source repository of computer system performance information. | No | Yes | Unknown | |
| CU8.in | The Cu8.in API provides a free URL shortener API service without registration. | No | Yes | Unknown | |
| Customer.guru | The Customer.guru API allows developers to schedule new customer surveys. Customer. | No | Yes | Unknown | |
| Cytora Addresses | The Cytora Addresses API allows users to search for addresses using queries, identifiers,... | No | Yes | Unknown | |
| Cytora Property | The Cytora Property API retrieves property data including usage, basement, crimes, multiocupancy,... | No | Yes | Unknown | |
| Daft | Daft.ie is Ireland's no. 1 property website. Daft. | No | Yes | Unknown | |
| daPulse | daPulse is a tool for improving company transparency. | No | Yes | Unknown | |
| DassMonarch GroundWork | GroundWork Monitor Enterprise is a real-time availability and performance monitoring system offered... | No | Yes | Unknown | |
| Data Demograph | The Data Demograph API returns demographic data, aiming to enrich contact lists. | No | Yes | Unknown | |
| Data2CRM | The Data2CRM API allows developers to access data from multiple CRM platforms via a single, unified... | No | Yes | Unknown | |
| Dead Man's Snitch | The Dead Man's Snitch API allows developers to access and manage snitches, which are used to... | No | Yes | Unknown | |
| DecoNetwork Order Management | The DecoNetwork Order Management API returns JSON data to search for orders in a DecoNetwork site... | No | Yes | Unknown | |
| DeepPavlov | The DeepPavlov API is available for inference as a REST web service. | No | Yes | Unknown | |
| Delighted | The Delighted API returns feedback data from clients, aiming to list survey responses, obtain... | No | Yes | Unknown | |
| delivery.com Merchant Admin | This Merchant API provides developers with the tools to integrate search and ordering functions... | No | Yes | Unknown | |
| Dell Dispatch Request | Dell's Dispatch Request API allows users the ability to manage parts dispatch requests. | No | Yes | Unknown | |
| Dell Support Case Management | Dell Support Case Management API allows for the management of Dell 'support cases' for any product... | No | Yes | Unknown | |
| Dell Warranty Status | Dell’s Warranty Status API enables users to track and check the status of any product under... | No | Yes | Unknown | |
| Deskdoo | The Deskdoo REST API allows developers to access and integrate the functionality of Deskdoo with... | No | Yes | Unknown | |
| Destakes | Destakes is a Portuguese news aggregator site and the accompanying API allows users to look up much... | No | Yes | Unknown | |
| DEV | The DEV community is a platform where developers can share ideas, submit tutorials, and ask... | No | Yes | Unknown | |
| DeviantART oEmbed | The DeviantART oEmbed API integrates link sharing into applications. | No | Yes | Unknown | |
| Devotionalium | Devotionalium API enables users to receive daily Bible verses from the Old Testament, New... | No | Yes | Unknown | |
| Dezrez | Dezrez provides real estate software as a service to real estate agents. | No | Yes | Unknown | |
| DHL | DHL XML Services provides developers the ability to integrate DHL's service availability, transit... | No | Yes | Unknown | |
| DiceBear Avatar Female | The DiceBear Avatar Female API returns an HTTPS female sprite collection for DiceBear Avatars. | No | Yes | Unknown | |
| DiceBear Avatar Male | The DiceBear Avatar Male API returns an HTTPS male sprite collection for DiceBear Avatars. | No | Yes | Unknown | |
| Dictum | API to get access to the collection of the most inspiring expressions of mankind | No | Yes | Unknown | |
| Digireality | The Digireality API is a complete API for managing your offers on the server. | No | Yes | Unknown | |
| DigitalPour | The DigitalPour API allows developers to retrieve tap list information in JSON format for use in... | No | Yes | Unknown | |
| Dilli Labs Profanity Filtering | The Dilli Labs Profanity Filtering API detects vulgar and improper language. | No | Yes | Unknown | |
| Dinero | Dinero is an accounting platform for businesses. | No | Yes | Unknown | |
| Dino Ipsum | Dino Ipsum is a dinosaur themed placeholder text generator. | No | Yes | Unknown | |
| Directi | The Directi.com service allows you to register, administer and resell domain names and hosting... | No | Yes | Unknown | |
| DiscountDomains | DiscountDomains is a domain registration and management website based in New Zealand. | No | Yes | Unknown | |
| DMTF Redfish | The DMTF (Distributed Management Task Force) Redfish API offers an open industry standard... | No | Yes | Unknown | |
| dna2protein | Converts DNA and mRNA sequences to amino-acid sequences | No | Yes | Unknown | |
| DNSimple | Register and update domains via the DNSimple API. | No | Yes | Unknown | |
| Doculicious | Doculicious.com is a web service for creating online web forms that output PDF files. | No | Yes | Unknown | |
| DocuSend Print-to-Mail | With the DocuSend Print-to-Mail Rest API, developers can add a "Send US Mail" button or a menu... | No | Yes | Unknown | |
| DocuSign Click | The DocuSign Click API allows developers to capture customer consent to standard terms on websites... | No | Yes | Unknown | |
| DocuSign eSignature | The DocuSign eSignature REST and SOAP-RPC APIs enable end users to sign documents, request... | No | Yes | Unknown | |
| DocuSign Rooms | The DocuSign Rooms API allows developers to integrate Rooms functionality into their own... | No | Yes | Unknown | |
| Domain | A collection of web services from EuroDNS S.A. | No | Yes | Unknown | |
| Domain Connect eNom | The Domain Connect eNom API provides a protocol to connect domain name services such as eNom with... | No | Yes | Unknown | |
| Domain Connect Squarespace | The Domain Connect Squarespace API provides a protocol to connect service providers such as... | No | Yes | Unknown | |
| Domainbox | Domainbox offers a comprehensive and scalable reseller package that provides functionality and... | No | Yes | Unknown | |
| Domainr | Domainr is a tool used in searching for available domain names. | No | Yes | Unknown | |
| DomainTools | You can access the same powerful research tools used every day by brand managers, legal... | No | Yes | Unknown | |
| DomCop | DomCop helps people find expired domains up for auction and provides information to help them make... | No | Yes | Unknown | |
| Doorman | The Doorman REST API allows developers to access and integrate the functionality of Doorman with... | No | Yes | Unknown | |
| DreamHost | DreamHost is a web hosting provider and domain-name registrar. | No | Yes | Unknown | |
| Dropproxy | Dropproxy is a file-sharing service that hides a user's Dropbox ID from a public URL via a proxy so... | No | Yes | Unknown | |
| Drupal Routing | The Drupal Routing REST API allows developers to access and integrate the functionality of Drupal... | No | Yes | Unknown | |
| Dune | A simple API which provides you with book, character, movie and quotes JSON data | No | Yes | Yes | Unknown |
| DVLA Search | The DVLA Search API enables developers to request vehicle information by license plate in the UK. | No | Yes | Unknown | |
| Dynadot | The Dynadot API allows you to search for and register domain names programmatically. | No | Yes | Unknown | |
| E-go | E-Go is provides courier and freight services throughout Australia. | No | Yes | Unknown | |
| easyBacklog | The easyBacklog API integrates agile practices into project management applications. | No | Yes | Unknown | |
| easyDNS | EasyDNS is a managed DNS provider that that specializes in domain name registration, DNS hosting,... | No | Yes | Unknown | |
| easyPDF | The easyPDF API available through Mashape allows developers to integrate data to create PDFs from... | No | Yes | Unknown | |
| EasyPost | EasyPost is a postage and shipping service for applications. | No | Yes | Unknown | |
| EcoMatcher TreeManager | The EcoMatcher TreeManager API integrates automated tree gifting. | No | Yes | Unknown | |
| ečv Slovakia Car Registration | The ečv Slovakia Car Registration API provides car registration information by sending its license... | No | Yes | Unknown | |
| EdiNation EDI Translation and Validation | Electronic Data Interchange documents translation and validation that works. | No | Yes | Unknown | |
| Edmunds Editorial | Edmunds.com is a third-party automotive website that provides users with information on different... | No | Yes | Unknown | |
| Elorus Developers | The Elorus Developers API allows developers to programmatically access the Elorus invoicing and... | No | Yes | Unknown | |
| Email Validation | Validate email addresses for deliverability and spam | apiKey |
Yes | Yes | Unknown |
| Embed.rocks | The Embed.rocks API enables developers to retrieve content from any site and embed information... | No | Yes | Unknown | |
| EMBL-EBI ArrayExpress | The EMBL-EBI ArrayExpress API allows developers to access data from high-throughput functional... | No | Yes | Unknown | |
| Emergent One | Emergent One is an API building, creation, and management platform. | No | Yes | Unknown | |
| Enchant | The Enchant API allows developers to integrate email- and twitter-based customer support into their... | No | Yes | Unknown | |
| Endicia Label Server | Endicia Internet Postage provides technology solutions to the mailing industry. | No | Yes | Unknown | |
| eNom | eNom makes it possible for resellers to buy and sell Internet domains and services. | No | Yes | Unknown | |
| Enomalism | From their site: An open source, web-based virtual infrastructure platform designed to answer the... | No | Yes | Unknown | |
| Entegral Base | The Entegral Base API provides a REST service to consume data from the Entegral Base real estate... | No | Yes | Unknown | |
| Entegral Sync | The Entegral Sync API is a RESTful service that allows you to; upload, modify and delete property... | No | Yes | Unknown | |
| Entegral Sync Webhooks | The Entegral Sync Webhooks API provides JSON postback events on listing, agent and office updates. | No | Yes | Unknown | |
| Envoice | The Envoice API allows developers to automate the invoicing process. | No | Yes | Unknown | |
| Epistlee | Epistlee is a blogging application that provides simple blogs. | No | Yes | Unknown | |
| Escher Reality | The Escher Reality API allows developers to access and integrate the functionality of their... | No | Yes | Unknown | |
| eSignatures.io | The eSignatures.io API allows developers to programmatically request signatures, check the status... | No | Yes | Unknown | |
| ESnet OSCARS | The service provides indicators and management fundtions for traffic on the Energy Sciences Network... | No | Yes | Unknown | |
| Europe PMC Grants | The Europe PMC Grants RESTful API provides a database that contains details of grants awarded by... | No | Yes | Unknown | |
| Everhour | The Everhour API supports JSON content to implement time tracking, projects, sections, tasks,... | No | Yes | Unknown | |
| EveryBlock Content | EveryBlock aggregates public data from 5 metro areas across the United States. | No | Yes | Unknown | |
| Everything Fonts Subsetting | The Everything Fonts Subsetting API in REST architecture allows developers to subset fonts. | No | Yes | Unknown | |
| Evident Verify | The Evident Verify RESTful API created verification requests to validate identities. | No | Yes | Unknown | |
| Ex Libris Aleph | Build a suite of interfaces for libraries patrons with this REST API. | No | Yes | Unknown | |
| Ex Libris Voyager | Build a suite of interfaces for libraries patrons with this REST API. | No | Yes | Unknown | |
| Examinare | Examinare is an online survey tool. Examinare allows users to create online surveys to gather... | No | Yes | Unknown | |
| exana DNS HTTP | Query the full spectrum of DNS data via a neatly structured, REST API. | No | Yes | Unknown | |
| EXLX | EXLX.tk is a simple URL shortener. The site exposes its functionality through an API. | No | Yes | Unknown | |
| Expedia Partner Solutions Rapid Booking | The Expedia Partner Solutions Rapid Booking API allows developers to book rooms and rates that have... | No | Yes | Unknown | |
| Expedia Partner Solutions Rapid Manage Booking | The Expedia Partner Solutions Rapid Manage Booking API allows developers to manage existing... | No | Yes | Unknown | |
| Expeditors Shipment Tracking | The Expeditors Shipment Tracking API returns shipment information, tracking references and event... | No | Yes | Unknown | |
| EZ RentOut | The EZRentOut API integrates equipment rentals. | No | Yes | Unknown | |
| Facebook Thoughts | The Facebook Thoughts API provides programmatic access to thought-to-text services. | No | Yes | Unknown | |
| Factorial | The Factorial API enables users to manage human resources data including employees' ID, job roles,... | No | Yes | Unknown | |
| Factura Directa | Factura Directa provides an online bill pay solution that helps users create, send, manage, and... | No | Yes | Unknown | |
| Facturama | The Facturama API provides invoicing tools for the Mexican market. | No | Yes | Unknown | |
| Faithlife Accounts | The Faithlife Accounts API enables developers to manage user accounts of a church online community... | No | Yes | Unknown | |
| Faithlife Community | The Faithlife Community API encompasses all social interaction between Faithlife accounts. | No | Yes | Unknown | |
| Fakturia | Fakturia offers a way to manage contracts and automate them with recurring billing. | No | Yes | Unknown | |
| Family Echo Family Tree | The Family Echo API allows any desktop or web application to display a family tree using the online... | No | Yes | Unknown | |
| Fastway | Fastway provides local, short-haul, and national courier services in key regional and metropolitan... | No | Yes | Unknown | |
| FAXAGE | FAXAGE offers API-based fax sending and receiving, automated number provisioning, and call-detail... | No | Yes | Unknown | |
| FeedbackHub Invites | The FeedbackHub Invites API is an API used to access and integrate with the FeedbackHub Core... | No | Yes | Unknown | |
| Feedier | The Feedier API returns feedback data in JSON format to implement testimonials, filters, tags, and... | No | Yes | Unknown | |
| feedly | feedly is an RSS, blog-feed reader. feedly allows users to aggregate and track all of the blogs and... | No | Yes | Unknown | |
| Feedoor | From their site: Feedoor is the ultimate feed service where you can add many items, create and... | No | Yes | Unknown | |
| FeedSyndicate News | The FeedSyndicate News API allows developers to access a large database of national and... | No | Yes | Unknown | |
| Fellowship One | The Fellowship One API is a REST-based web allows users to access and use the information available... | No | Yes | Unknown | |
| Fenopy | Fenopy is a torrent sharing site. Users can upload and download torrents of music, movies, TV... | No | Yes | Unknown | |
| Fieldwire | The Fieldwire REST API allows developers to access and integrate the functionality of Fieldwire... | No | Yes | Unknown | |
| FIFA Ultimate Team | FIFA Ultimate Team items API | No | Yes | Unknown | |
| FIFO URL | FIFO URL is a URL shortening service. The FIFO API communicates in JSON format and requires an API... | No | Yes | Unknown | |
| FileCatalyst | FileCatalyst is a rapid file transfer service. | No | Yes | Unknown | |
| Filestack | Filestack File Uploader & File Upload API | apiKey |
Yes | Unknown | |
| Fillerama | Fillerama is a web service that generates placeholder text composed of quotes from Futurama, Star... | No | Yes | Unknown | |
| Find your IP | Simply returns the IP of the requester. Good for applications / scripts needing their global IP. | No | Yes | Unknown | |
| FinerWorks | The FinerWorks Order API provides a way for developers to build applications that utilize... | No | Yes | Unknown | |
| FL3XX | The FL3XX API returns aviation data including aircraft, airports, flights, and passengers. | No | Yes | Unknown | |
| Flask | The Flask REST API provides access to the same web functionalities that the Django REST framework... | No | Yes | Unknown | |
| Flexie | Flexie is an automation technology platform and CRM service. | No | Yes | Unknown | |
| Flexport | The Flexport REST API offers global air and ocean freight and shipping data through their online... | No | Yes | Unknown | |
| Flipsnack | The Flipsnack API enables users to manage data to design and publish magazines. | No | Yes | Unknown | |
| Float | The Float API allows developers to integrate Float's team scheduling functions into their own... | No | Yes | Unknown | |
| flow.io | The flow.io service provides "lean project management" in a software as a service format. The flow. | No | Yes | Unknown | |
| Flowdock | Flowdock is a service that allows project team members to collaborate with each other. | No | Yes | Unknown | |
| Flowdock Streaming | This streaming API provides real-time access to flows and also allows listen to messages, events... | No | Yes | Unknown | |
| flydubai Offer Management | The flydubai Offer Management API provides access to the cheapest available flight offer, and... | No | Yes | Unknown | |
| flydubai Order Management | The flydubai Order Management API provides a way to create a booking for a given itinerary,... | No | Yes | Unknown | |
| FOAAS | Fuck Off As A Service | No | No | Unknown | |
| Font Squirrel | Font Squirrel is a collection of free typefaces that are licensed for commercial work. | No | Yes | Unknown | |
| Foodkit Restaurant | Foodkit is a REST interface that provides brand information, customer details, addresses, order... | No | Yes | Unknown | |
| ForeclosureListings.com | ForeclosureListings.com combines one of the largest databases of foreclosure listings direct from... | No | Yes | Unknown | |
| Form | Form-API provides an interface that simplifies, autocompletes and validates forms. | No | Yes | Unknown | |
| Formidable Forms | With Formidable Forms, users can generate a Wordpress form in less than 60 seconds. | No | Yes | Unknown | |
| Formspree | The Formspree API provides services to Fetch all your submissions and more. | No | Yes | Unknown | |
| Fortellis Customers | The Fortellis Customers API returns customers' data when developers authorize with API Key or... | No | Yes | Unknown | |
| Fortellis Deals | The Fortellis Deals API returns auto deals data. | No | Yes | Unknown | |
| Fortellis eLead Service Appointment Schedule Availability | The Fortellis eLead Service Appointment Schedule Availability API tests if there is a valid... | No | Yes | Unknown | |
| Fortellis Merchandisable Vehicles | The Fortellis Merchandisable Vehicles API returns dealer, media, merchandisable vehicle by ID,... | No | Yes | Unknown | |
| Fortellis Safety Recalls | The Fortellis Safety Recalls API returns a list with open safety recalls on a vehicle, based on the... | No | Yes | Unknown | |
| Fortellis Sales Customers | The Fortellis Sales Customers API returns data to find, retrieve, and filter service customers in... | No | Yes | Unknown | |
| Fortellis Vehicle Sales Specifications | The Fortellis Vehicle Sales Specifications API returns data that decodes a VIN into a vehicle... | No | Yes | Unknown | |
| Fortellis Vehicle Service Pricing | The Fortellis Vehicle Service Pricing API returns data of vehicles that users take to the... | No | Yes | Unknown | |
| Fortellis Vehicle Service Scheduling | The Fortellis Vehicle Service Scheduling API returns data that finds and books appointments based... | No | Yes | Unknown | |
| Fortellis Vehicle Specifications | The Fortellis Vehicle Specifications API returns data to decode the VIN number of a vehicle. | No | Yes | Unknown | |
| Fortellis Vehicles | The Fortellis Vehicles API returns vehicle data. | No | Yes | Unknown | |
| Fortnite | Fortnite Stats | apiKey |
Yes | Unknown | |
| Fortune | The Fortune API is a REST interface that returns random fortunes originally from the fortune-mod... | No | Yes | Unknown | |
| FORUMS libre! | FORUMS libre! allows users to create their own free forums for personal, commercial, and... | No | Yes | Unknown | |
| Forza | Show random image of car from Forza | No | Yes | Unknown | |
| FRED - Open Knowledge Extraction | The FRED API allows users to perform Open Knowledge Extraction operations, which automatically... | No | Yes | Unknown | |
| Free OCR | The free OCR API provides a simple way of parsing images and multi-page PDF documents (PDF OCR) and... | No | Yes | Unknown | |
| Freshchat | The Freshchat API allows developers to manage chat queries from website visitors. | No | Yes | Unknown | |
| Freshservice | The Freshservice API provides IT management solutions from the cloud. | No | Yes | Unknown | |
| FriendlyRobot Nickname | The FriendlyRobot Nickname API provides existing chat bots with personalization capabilities. | No | Yes | Unknown | |
| Front Desk HQ Core | The Front Desk REST API allows business management functions through information retrieval calls. | No | Yes | Unknown | |
| FullContact Card Reader | FullContact provides a suite of tools to support individuals, businesses, and developers in... | No | Yes | Unknown | |
| FullContact Company | FullContact provides a suite of tools to support individuals, businesses, and developers in... | No | Yes | Unknown | |
| Fun Fact | A simple HTTPS api that can randomly select and return a fact from the FFA database | No | Yes | Yes | Unknown |
| FundraisingBox | The FundraisingBox API integrates fundraising features into web services including campaigns,... | No | Yes | Unknown | |
| Future Point Horoscope | Future Point offers astrology consultations with several horoscope models. | No | Yes | Unknown | |
| FutureSimple Sync | Base by FutureSimple provides small and medium sized businesses with sales and CRM services. | No | Yes | Unknown | |
| G-Square Textrator | The G-Square Textrator API is a module that provides structured data from text for Summarization,... | No | Yes | Unknown | |
| G2Reader | G2Reader is an RSS feed reader that, according to its founders, was inspired by Google Reader. | No | Yes | Unknown | |
| Gamify.WS | Gamify.WS is a RESTful web service allowing developers to gamify anything and everything. | No | Yes | Unknown | |
| Gandi Domain | Gandi is a hosting and domain management site. | No | Yes | Unknown | |
| Gandi Hosting | Gandi provides VPS cloud hosting services. | No | Yes | Unknown | |
| Gantto | The service accepts scheduling data for projects and activities as input, then generates Gantt... | No | Yes | Unknown | |
| Gavagai | We offer five powerful tools to make your data more intelligible: /keywords, /lexicon, /stories,... | No | Yes | Unknown | |
| GDBrowser | Easy way to use the Geometry Dash Servers | No | Yes | Unknown | |
| Geekbot | The Geekbot API allows developers to create, update, read, list, replace, duplicate, or delete... | No | Yes | Unknown | |
| Gemini Countersoft | Countersoft's Gemini is an issue and bug tracking system. | No | Yes | Unknown | |
| Genability Account | The Genability Account API returns energy and savings data in a user's home and business. | No | Yes | Unknown | |
| Genability Load Serving Entity | The Genability Load Serving Entity API returns information on electric bills shown in territories... | No | Yes | Unknown | |
| Genability On Demand Cost Calculations | The Genability On Demand Cost Calculations API calculates the cost of electricity, natural gas, and... | No | Yes | Unknown | |
| Genability On Demand Mass Calculations | The Genability On Demand Mass Calculations API returns data of multiple calculations. | No | Yes | Unknown | |
| Genability Open Savings | The Genability Open Savings API returns data of savings by region. | No | Yes | Unknown | |
| Genability Property Key | The Genability Property Key API returns tariff metadata, considering property city limits. | No | Yes | Unknown | |
| Genability Savings Analysis | The Genability Savings Analysis API returns data with probable future costs and savings of a change... | No | Yes | Unknown | |
| Genability Smart Price | The Genability Smart Price API returns energy pricing data of end users and devices, including... | No | Yes | Unknown | |
| Genability Smart Schedule | The Genability Smart Schedule API is in private beta. | No | Yes | Unknown | |
| Genability Tariff | The Genability Tariff API returns data of electricity rate plans, including residential,... | No | Yes | Unknown | |
| Genability Time of Use | The Genability Time of Use API returns pricing data according to the time of day users consume... | No | Yes | Unknown | |
| Genability Typical Baseline | The Genability Typical Baseline API returns data with the energy hourly usage for a building within... | No | Yes | Unknown | |
| Genability ZipCode | The Genability ZipCode API returns data of the energy users consume in diverse zip codes, cities,... | No | Yes | Unknown | |
| GenealogyCloud OneGreatFamily | GenealogyCloud by OneGreatFamily is a web-based genealogy family tree service. | No | Yes | Unknown | |
| Geni | Geni is a website centered around genealogy. | No | Yes | Unknown | |
| Geo Services | Geo Services provides a collection of place locator functions that can return information about a... | No | Yes | Unknown | |
| Geodata Service Demographics Web Service | GeoData Service helps customers target specific markets through demographic, geographic, and... | No | Yes | Unknown | |
| Geotab | Geotab enables fleet tracking, connected vehicles, and telematics. | No | Yes | Unknown | |
| getAddress.io | getAddress.io is a simple service for finding postal addresses using REST calls. | No | Yes | Unknown | |
| getBible | The getBible API allows users to retrieve Bible verses for their websites in the version and... | No | Yes | Unknown | |
| GetGrowing | GetGrowing is a complete API and web interface for your smart garden | No | Yes | Unknown | |
| GetSentiment | The GetSentiment REST API allows developers to access and integrate the functionality of... | No | Yes | Unknown | |
| Ghana COVID 19 | The Ghana COVID 19 API in REST architecture returns JSON data with COVID-19 cases in Ghana and the... | No | Yes | Unknown | |
| Ghost Admin | The Ghost Admin API allows developers to create and manage their content on the Ghost platform. | No | Yes | Unknown | |
| Ghost Webhooks | The Ghost Webhooks API allows developers to trigger specific events when something happens in... | No | Yes | Unknown | |
| GigaBook | This REST API allows you access to GigaBook's scheduling services and can be viewed in a daily,... | No | Yes | Unknown | |
| GitHub Activity Event Types & Payloads | The GitHub Activity Event Types & Payloads API allows developers to integrate the GitHub repository... | No | Yes | Unknown | |
| GitHub Activity Starring | The GitHub Activity Starring API allows developers to integrate the GitHub repository starring... | No | Yes | Unknown | |
| GitHub Activity Watching | The GitHub Activity Watching API allows developers to integrate the GitHub repository watching... | No | Yes | Unknown | |
| GitHub Emojis | The GitHub Emojis API allows developers to integrate the GitHub emojis service into their... | No | Yes | Unknown | |
| GitHub Gitignore | The GitHub Gitignore API allows developers to specify a gitignore template to apply to the... | No | Yes | Unknown | |
| GitHub Issues Assignees | The GitHub Issues Assignees API allows developers to integrate the GitHub list assignees service... | No | Yes | Unknown | |
| GitHub Organization Members | The GitHub Organization Members API allows developers to gain access to lists of users who are... | No | Yes | Unknown | |
| GitHub Organization Teams | The GitHub Organization Team API allows developers to gain access to information about teams within... | No | Yes | Unknown | |
| GitHub Rate Limit | The GitHub Rate Limit API allows developers to gain access to information about the rate limit... | No | Yes | Unknown | |
| GitHub Repository Collaborators | The GitHub Repository Collaborators API allows developers to access and manage lists of... | No | Yes | Unknown | |
| GitHub Repository Statistics | The GitHub Repository Statistics API allows developers fetch data that GitHub uses for visualizing... | No | Yes | Unknown | |
| GitHub Repository Webhooks | The GitHub Repository Webhooks API allows developers to integrate the GitHub Webhooks service into... | No | Yes | Unknown | |
| GlassFrog | The GlassFrog API retrieves Holacracy data that observe methods of decentralized management and... | No | Yes | Unknown | |
| Gliffy | Use the Gliffy flowcharting and diagramming API to include flowchart and diagramming editing... | No | Yes | Unknown | |
| Gliiph | The Gliiph API allows developers to access and integrate the functionality of Gliiph with other... | No | Yes | Unknown | |
| Global Caché | The Global Caché API provides developers with a standard interface for controlling and monitoring... | No | Yes | Unknown | |
| Globalhop | Globalhop is a data extraction platform focused on enabling monetization capabilities in... | No | Yes | Unknown | |
| GlobalTranz Carrierrate | GlobalTranz provides Carrierrate.com as a free online freight booking solution for their customers. | No | Yes | Unknown | |
| Glot Run | The Glot Run API provides developers a http API for running code inside docker containers. | No | Yes | Unknown | |
| Glot Snippets | The Glot Snippets API provides developers a http API for storing and managing snippets. | No | Yes | Unknown | |
| glurl.co | Glurl.co is a URL shortening service that allows you to shorten addresses that point to web pages,... | No | Yes | Unknown | |
| Go1 | The GO1 REST API allows developers to access and integrate the functionality of GO1 with other... | No | Yes | Unknown | |
| GoFax Fax | GoFax is focused on provided solutions for internet fax and SMS services through email. | No | Yes | Unknown | |
| Googe Refine ReconciliationService | The service returns potential matches within a dataset for a specified name or label text. | No | Yes | Unknown | |
| Google APIs Discovery | This lightweight API is used within Google and made available to other developers. | No | Yes | Unknown | |
| Google Cardboard | Google Cardboard is a customizable virtual reality hardware component. | No | Yes | Unknown | |
| Google Cloud Billing Catalog | The Google Cloud Billing Catalog API allows you to get Google Cloud Platform Pricing Information. | No | Yes | Unknown | |
| Google Cloud Billing RPC | The Google Cloud Billing RPC API allows developers to manage billing for their Google Cloud... | No | Yes | Unknown | |
| Google Cloud Scheduler | Google Cloud Scheduler is a fully managed cron job service. | No | Yes | Unknown | |
| Google Compute Engine | Google Compute Engine is a service that provides virtual machines that run on Google infrastructure. | No | Yes | Unknown | |
| Google Compute Engine Autoscaler | The Google Compute Engine Autoscaler API allows developers to automatically scale the Google... | No | Yes | Unknown | |
| Google Compute Engine Instance Group Manager | The Google Compute Engine Instance Group Manager API allows developers to create and manage Google... | No | Yes | Unknown | |
| Google Compute Engine Instance Group Updater | The Google Compute Engine Instance Group Updater API allows developers to perform rolling updates... | No | Yes | Unknown | |
| Google Contact Picker | The Google Contact Picker API allows users to select entries from their contact list and share... | No | Yes | Unknown | |
| Google Contacts | From their site: The Google Contacts Data API allows client applications to view and update... | No | Yes | Unknown | |
| Google Gadgets | From their site: The Google Gadgets API provides a way to put third-party content onto the Google... | No | Yes | Unknown | |
| Google Hangouts Chat | The Google Hangouts Chat API returns bot data to establish a chat connection. | No | Yes | Unknown | |
| Google Hotel Bids | The Google Hotel Bids API integrates hotel bids into applications. | No | Yes | Unknown | |
| Google Hotel Prices | The Google Hotel Prices API integrates hotel prices into applications. | No | Yes | Unknown | |
| Google Hotel Reports | The Google Hotel Reports API implements hotel reports into applications. | No | Yes | Unknown | |
| Google Page Lifecycle | The Page Lifecycle API allows you to access application lifecycle features that are common on... | No | Yes | Unknown | |
| Google Picker JavaScript | The Google Picker JavaScript API enables to open or upload Google Drive files. | No | Yes | Unknown | |
| Google Play Developer | The Google Play Developer API allows developers the opportunity to automate tasks concerning... | No | Yes | Unknown | |
| Google Reader Subscriber Statistics | Returns a publicly available XML, JSON or JSONP response for any RSS feed and shows Google Reader... | No | Yes | Unknown | |
| Google Smart Home | Google Smart Home allows users to gain control of connected devices via Google Home Applications... | No | Yes | Unknown | |
| Google Tasks | Google Tasks provides a to-do list system for users within GMail, Calendar, iGoogle home page and a... | No | Yes | Unknown | |
| Google Visualization | The Google Visualization JavaScript API lets you access structured data and visualize that data... | No | Yes | Unknown | |
| Google Web Budget | The Google Budget API allows developers to manage the budget for limited background work that can... | No | Yes | Unknown | |
| Google Webmaster Tools | Google Webmaster Tools allows client applications to view and update site information and Sitemaps... | No | Yes | Unknown | |
| GoSpotCheck | The GoSpotCheck API integrates surveys into web services for data collection purposes. | No | Yes | Unknown | |
| GoTranscript | The GoTranscript API can add transcription, translation, captioning, and subtitling features to... | No | Yes | Unknown | |
| GraphCMS Simple | GraphCMS is a headless content management system provider that utilizes the GraphQL platform. | No | Yes | Unknown | |
| GridLab | The GridLab API facilitates grid computing by acting as an interface between grid applications and... | No | Yes | Unknown | |
| GrowSumo | The GrowSumo REST API allows developers to access and integrate the functionality of GrowSumo with... | No | Yes | Unknown | |
| Guestmeter | Guestmeter API enables users and partners to send SMS or Email Survey to recent guests, encouraging... | No | Yes | Unknown | |
| GuideStar Premier | The GuideStar Premier API combines nonprofit-supplied data from the GuideStar Exchange program with... | No | Yes | Unknown | |
| Guidewire | Guidewire Software exclusively serves the P&C insurance industry. | No | Yes | Unknown | |
| Guru | The Guru REST API allows developers to access and integrate the functionality of Guru with other... | No | Yes | Unknown | |
| GuruCue | GuruCue is a service that helps users choose what to watch by giving them a visual cue when... | No | Yes | Unknown | |
| Guzzle Ayup! | Guzzle Ayup! is a PubSubHubbub Hub. Publishers can notify the Guzzle Ayup! | No | Yes | Unknown | |
| GXchart | The GXchart API is a web service that allows users to automatically generate graphs and charts. | No | Yes | Unknown | |
| Gyant | Gyant offers a suite of virtual care solutions capable of increasing patient satisfaction scores,... | No | Yes | Unknown | |
| Hablaa Dictionary Translation | Hablaa offers multi-language translation services completed by a team of native speaker and... | No | Yes | Unknown | |
| HackerRank | The HackerRank API can be used to create programming competitions, use a personalized scoring... | No | Yes | Unknown | |
| HackSense | H.A.C.K. is the Hungarian Autonomous Center for Knowledge. | No | Yes | Unknown | |
| Hail | The Hail REST API allows developers to access and integrate the functionality of Hail with other... | No | Yes | Unknown | |
| Happy Scribe | A RESTful API for automated transcription, captions and subtitles, 95% accuracy, fast turnaround. | No | Yes | Unknown | |
| HappyFox JavaScript | The HappyFox JavaScript API returns customer data including name, email, and phone number by... | No | Yes | Unknown | |
| Harry Potter Charactes | Harry Potter Characters Data with with imagery | No | Yes | Unknown | |
| Harwich Haven Authority | Harwich Haven Authority (HHA), an organization based in the UK, is tasked with safeguarding the... | No | Yes | Unknown | |
| HasenKorn Public Holidays | The HasenKorn Public Holidays API provides up-to-date information on public holidays in many... | No | Yes | Unknown | |
| hbookmark | hbookmark is a way to archive and sort links via twitter. | No | Yes | Unknown | |
| Health Street | Health Street's REST API allows a company to easily register staff or applicants for drug tests and... | No | Yes | Unknown | |
| Hebcal Hebrew Date Converter | Hebcal is a Jewish calendar and holiday web site. | No | Yes | Unknown | |
| Hebcal Jewish Calendar | Hebcal is a Jewish calendar and holiday web site. | No | Yes | Unknown | |
| Hedonometer | Hedonometer is a service for measuring the happiness of large populations in real time using social... | No | Yes | Unknown | |
| Helioviewer Screenshots | The Helioviewer Screenshot API gives users the ability to create custom screenshots of image data... | No | Yes | Unknown | |
| Hetzner | Hetzner Online is a web hosting provider and data center operator. | No | Yes | Unknown | |
| High Gear Media | The High Gear Media API is for any developer that want to build Car/Automotive apps. | No | Yes | Unknown | |
| HIGH.FI News aggregator | The HIGH.FI platform combines news from thousands of global sources, and organizes them in... | No | Yes | Unknown | |
| Hirak IP to Country | Ip to location with country code, currency code & currency name, fast response, unlimited requests | apiKey |
Yes | Unknown | |
| Historious | Historious is a website bookmarking tool similar to Delicious. | No | Yes | Unknown | |
| Home Connect Physical Appliance | Home Connect offers a RESTful API to control and monitor enabled home appliances. | No | Yes | Unknown | |
| Home Junction Slipstream | The Home Junction Slipstream Web Services API provides a suite of web services that allow you to... | No | Yes | Unknown | |
| Honest Renter | The Honest Renter API access data associated to rentals, background checks of tenants, and housing. | No | Yes | Unknown | |
| Hopewiser AddressServer | Hopewiser is a UK-based company that specializes in address and database management software. | No | Yes | Unknown | |
| Hopewiser Atlas | Hopewiser's Atlas SOAP API allows developers to add simple UK and Australian address lookup and... | No | Yes | Unknown | |
| HostNine | HostNine (H9) provides domain registration and hosting services, including hosting services... | No | Yes | Unknown | |
| hoteliga | The hoteliga API allows developers to build websites and applications that take advantage of... | No | Yes | Unknown | |
| Hotelogix | The Hotelogix API allows developers to integrate hotel management services into their own websites... | No | Yes | Unknown | |
| HotelsPro Coral | The HotelsPro Coral API offers dynamic interaction between online hotel systems and HotelsPro's... | No | Yes | Unknown | |
| HouseCanary Analytics | The HouseCanary Analytics API allows developers to access real estate information for a single... | No | Yes | Unknown | |
| HTNG | The HTNG API is used to retrieve and modify information hosted on the HTNG's servers related to... | No | Yes | Unknown | |
| HTTP Redirect Chain Enumerator | For use in checking the status codes between the first url and the destination so you can catch the... | No | Yes | Unknown | |
| HubSpot Blog | HubSpot is an internet company that provides high-quality internet marketing to small... | No | Yes | Unknown | |
| HubSpot Calendar | The HubSpot Calendar API allows developers to create, get, update, and delete tasks on their... | No | Yes | Unknown | |
| HubSpot Contact Properties | The HubSpot Contact Properties API allows developers to integrate the Hubspot Contacts data into... | No | Yes | Unknown | |
| HubSpot Contacts | The HubSpot Contacts API allows developers to integrate the Hubspot Contacts data into their... | No | Yes | Unknown | |
| HubSpot Forms | The HubSpot Forms API allows developers to integrate the Hubspot Form Services into their... | No | Yes | Unknown | |
| HubSpot Tracking Code | The HubSpot Tracking Code API allows developers to track page views, identify visitors, track... | No | Yes | Unknown | |
| HubSpot Webhooks | The HubSpot Webhooks API allows developers to subscribe to changes that occur in the accounts of... | No | Yes | Unknown | |
| Hydra Movies | [Editor's Note: This API is no longer available. | No | Yes | Unknown | |
| Hygger | Hygger is a product and project management platform designed for Agile teams. | No | Yes | Unknown | |
| Hytale | Hytale blog posts and jobs | No | Yes | Unknown | |
| I Done This | I Done This is a provider of organizational management and productivity solutions. | No | Yes | Unknown | |
| i.materialise | i.materialise is an online 3D printing service. Users upload a 3D model and i. | No | Yes | Unknown | |
| i18n Translation Engine | The i18n Translation Engine API returns the requested text translated into several languages. | No | Yes | Unknown | |
| i18next | The i18next API returns JSON data of localization and internationalization. | No | Yes | Unknown | |
| IBM Watson Language Translator | The Language Translator API translates text from one language to another. | No | Yes | Unknown | |
| IBM Watson Tone Analyzer | The IBM Watson Tone Analyzer API helps users discover, understand, and revise the tone of... | No | Yes | Unknown | |
| Iceland Car Registration | This API determines the make, model, age, color and VIN number of Vehicles registered in Iceland... | No | Yes | Unknown | |
| IDAutomation Barcode Generation SaaS | The Barcode Generation SaaS is an online fault-tolerant service that is hosted and managed by... | No | Yes | Unknown | |
| Idescat Advance Release Calendar | The Statistical Institute of Catalonia produces official statistics in the fields of the economy,... | No | Yes | Unknown | |
| iDigitalNet | IDigitalNet provides windows and linux hosting, email hosting, domain registration and domain... | No | Yes | Unknown | |
| Idilia Language Graph | Idilia Language Graph API works as a knowledge base with 100 million facts expressed as... | No | Yes | Unknown | |
| Idilia Semantic Matching | Idilia Semantic Matching API available in XML, JSON, and REST protocols, determines sense analysis... | No | Yes | Unknown | |
| Idobata Webhooks | This Webhooks API provides access to notifications from Idobata for; airbrake, backlog, crashlytics... | No | Yes | Unknown | |
| IMDb-API | API for receiving movie, serial and cast information | apiKey |
Yes | Unknown | |
| IMified | From their site: IMified is an instant messenger buddy that works across all major IM networks and... | No | Yes | Unknown | |
| ImmobilienScout24 Valuation | Immobilien Scout 24 is a Real Estate company in Germany that lets customers to search for ads,... | No | Yes | Unknown | |
| Impala Hotel Bookings | Hotel content, rates and room bookings | apiKey |
Yes | No | Unknown |
| Incentivit | The Incentivit REST API returns data of referrals and referrers, allowing to add registration,... | No | Yes | Unknown | |
| India.dj Reseller | India.dj Reseller is a white-label platform that allows individuals to buy and resell assets to... | No | Yes | Unknown | |
| Inedo ProGet Native | The Inedo ProGet Native API provides JSON methods, in addition to SOAP and SQL. | No | Yes | Unknown | |
| Infogr.am | The Infogr.am REST API provides developers access to infographic creation, update, and download. | No | Yes | Unknown | |
| Informatica AddressDoctor | The service verifies street and delivery addresses as submitted and corrects them to standard... | No | Yes | Unknown | |
| Infotorch COVID-19 Australia Data | The Infotorch COVID-19 Australia Data API allows developers to access Australian COVID-19 data... | No | Yes | Unknown | |
| Infrastructure Republic WWWengine | The WWWengine REST API allows Internet Service Providers (ISPs) to integrate their website with the... | No | Yes | Unknown | |
| InsideView | InsideView is a CRM intelligence service that offers complete, accurate customer information to... | No | Yes | Unknown | |
| Inspiration | Motivational and Inspirational quotes | No | Yes | Yes | Unknown |
| Instapaper | The Instapaper API allows third-party applications to add URLs to Instapaper. | No | Yes | Unknown | |
| Intelipost | The Intelipost API returns information about Brazilian zip codes, shipment methods, tracking, and... | No | Yes | Unknown | |
| Internet Vista | Internet Vista is an internet uptime monitoring service that also provides metrics on the... | No | Yes | Unknown | |
| Internet.bs | Internet.bs is a Bahamas-based internet domain registration service provider. Internet. | No | Yes | Unknown | |
| InterNetworX | InterNetworX is a domain registrar that provides real-time domain registrations, registrar... | No | Yes | Unknown | |
| InterServer | InterServer offers web hosting, dedicated server, and cloud VPS services. | No | Yes | Unknown | |
| InterWorx License | The InterWorx Hosting Control Panel is a Linux based dedicated server and VPS control panel. | No | Yes | Unknown | |
| Invoice Generator | The Invoice Generator API offers a PDF file conversion system that can be integrated with existing... | No | Yes | Unknown | |
| InvoiceOcean | InvoiceOcean is an online invoicing service designed to have a simple and intuitive interface. | No | Yes | Unknown | |
| IP Geolocation | Geolocate website visitors from their IPs | apiKey |
Yes | Yes | Unknown |
| IP Vigilante | Free IP Geolocation API | No | Yes | Unknown | |
| IP2WHOIS | IP2WHOIS enables developers to check WHOIS information for a particular domain. | No | Yes | Unknown | |
| ipapi.com | Real-time Geolocation & Reverse IP Lookup REST API | apiKey |
Yes | Unknown | |
| IPRental | The service provides access to a network of IP addresses for routing application traffic. | No | Yes | Unknown | |
| ipstack | Locate and identify website visitors by IP address | apiKey |
Yes | Unknown | |
| IRCCloud | IRCCloud is an IRC (Internet Relay Chat) client that operates in-browser. | No | Yes | Unknown | |
| is.gd | The is.gd API lets you create short versions of long URLs. is.gd's sister service, [[http://is. | No | Yes | Unknown | |
| Iteris Clearag Account | The Iteris Clearag Account API allows developers to create and manage users, fields, and growths... | No | Yes | Unknown | |
| iWantMyName Domain and DNS | The iWantMyName Domain and DNS API provides a DDNS interface to use a domain with routers. | No | Yes | Unknown | |
| IXN Tech Life Quotes | The IXN Tech Life Quotes API provides access to Life Insurance Quoting. | No | Yes | Unknown | |
| izi.TRAVEL | The izi.TRAVEL API allows developers to access the izi. | No | Yes | Unknown | |
| Jam | The Jam API enables to parse a website into a JSON accessible API via CSS selectors. | No | Yes | Unknown | |
| Jedcart Freight Gateway | Jedcart provides freight management solutions to market places, online retailers, and consumers. | No | Yes | Unknown | |
| Jetpack | Jetpack integrates multiple web functions with one plugin. | No | Yes | Unknown | |
| Jiglu Insight | The Jiglu Insight API allows developer to integrate enterprise applications with the Jiglu platform. | No | Yes | Unknown | |
| JIRA | JIRA is a proprietary issue tracking product that allows bug tracking and agile project management | OAuth |
Yes | Unknown | |
| Jitbit Helpdesk | Jitbit offers hosted help desk, help desk system, and live chat services. | No | Yes | Unknown | |
| Join.me | Join.me is an online meeting and remote screen-sharing service. Join. | No | Yes | Unknown | |
| Joker.com | This API gives users access to the Reseller control panel; a lightweight Web-based solution... | No | Yes | Unknown | |
| Jolokia | JMX is a standard management solution that supports the W3C specification for Cross-Origin Resource... | No | Yes | Unknown | |
| JRNI Admin | The jrni Admin API returns data related to clients, bookings, time, addresses, company, service,... | No | Yes | Unknown | |
| JRNI Basket | The jrni Basket API retrieves coupons, deals, attendees, checkout, and items data. | No | Yes | Unknown | |
| JRNI Login | The jrni Login API retrieves HAL data when developers make JSON calls to create an auth token and... | No | Yes | Unknown | |
| JRNI Member | The jrni Member API retrieves data related to member wallets, member booking, and member purchase... | No | Yes | Unknown | |
| JRNI Public | The jrni Public API provides operations about a service, a person, a resource, a company, an event,... | No | Yes | Unknown | |
| JRNI Purchase | The jrni Purchase API allows developers to GET and DELETE purchases. | No | Yes | Unknown | |
| Jservice | Jeopardy Question Database | No | No | Unknown | |
| JSPWiki | JSPWiki is a Java-based Wiki. The site for JSPWiki has an XML-RPC interface. | No | Yes | Unknown | |
| Kanban Tool | Kanban Tool is a project management system. | No | Yes | Unknown | |
| Kanji Alive | Kanji Alive is a web-based API that returns the details of the 1,235 kanji taught in Japanese... | No | Yes | Unknown | |
| Kemp Technologies LoadMaster | This API from KEMP Technologies facilitates remote access to the LoadMaster load balancing... | No | Yes | Unknown | |
| Kentico | The Kentico Cloud APIs give developers access to a cloud-based, API-first CMS that enables them to... | No | Yes | Unknown | |
| Kentico Kontent Delivery | The Kentico Kontent Delivery API serves published content from Kentico Kontent projects. | No | Yes | Unknown | |
| KeyCDN | The KeyCDN API integrates zones, zone aliases, zone referrers, and reports associated with web... | No | Yes | Unknown | |
| Kindred Australian Racing Feeds | The Kindred Australian Racing Feeds REST API fetches a list without filter with the most recent... | No | Yes | Unknown | |
| Kindred Casino Feeds | The Kindred Casino Feeds REST API returns available jackpot games for a specified brand supported... | No | Yes | Unknown | |
| Kindred Poker | The Kindred POKER REST API lists all upcoming poker tournaments. | No | Yes | Unknown | |
| Kindred Racing AU | The Kindred Racing AU REST API retrieves a list of race meetings happening between specific start... | No | Yes | Unknown | |
| King Proxies | King Proxies validates activity and tests performance of public HTTP, HTTPS, Socks, and FTP proxies. | No | Yes | Unknown | |
| Kintera | Kintera Sphere software as a service technology platform and social CRM (Constituent Relationship... | No | Yes | Unknown | |
| Klippa OCR | The Klippa OCR API is a fast and accurate OCR engine for all European language. | No | Yes | Unknown | |
| Knewin News | The Knewin News API allows developers to access structured news content that has been aggregated... | No | Yes | Unknown | |
| KnpBundles | KnpBundles is a repository of bundles for Symfony2, a PHP framework for web projects. | No | Yes | Unknown | |
| Kona | Kona is a task and project management service for helping groups of people get things done. | No | Yes | Unknown | |
| konvert.me | Konvert.me provides network tools, as well as value and image converters. The konvert. | No | Yes | Unknown | |
| KPN Cloudfax | The KPN Cloudfax API adds fax capabilities to approved third-party applications. | No | Yes | Unknown | |
| KPN Speech To Text - Contexta | Contexta speech API is a highly accurate and customizable speech-to-text service that can... | No | Yes | Unknown | |
| Kuler | From their site: kuler is all about color and inspiration: explore, create, and share color themes. | No | Yes | Unknown | |
| Kustomer | Kustomer is a customer engagement platform designed to combine customer experience, support, and... | No | Yes | Unknown | |
| Lamplighter Customer | The Lamplighter Customer REST API allows developers to access and integrate the functionality of... | No | Yes | Unknown | |
| Land Registry Information System of the Czech Republic | The Land Registry Information System of the Czech Republic provides users with online access to... | No | Yes | Unknown | |
| LangId | LangID is a fast way to retrieve information about any sort of language, without specifying the... | No | Yes | Unknown | |
| Language Identification (Prediction) | The Language Identification API provides data detection for textual content. | No | Yes | Unknown | |
| languagelayer | Languagelayer serves as a platform for detecting the structural, textual, and semantic... | No | Yes | Unknown | |
| Latvian Car License plate | The Latvian Car License plate API enables technical details of vehicles registered in Latvia by... | No | Yes | Unknown | |
| Lauritz | Lauritz is a northern European auction site for art, antiques, home furnishings, and luxury items. | No | Yes | Unknown | |
| Lawmatics | Lawmatics Open API has been created for Lawmatics customers to connect with Lawmatics Services... | No | Yes | Unknown | |
| LawPanel | The LawPanel API offers trademark tools for companies. | No | Yes | Unknown | |
| LDS | The LDS API allows developers to retrieve LDS.org's membership and calling directory. | No | Yes | Unknown | |
| Lemonade | The Lemonade API allows you to offer home insurance services to your users. | No | Yes | Unknown | |
| Lengoo | The Lengoo API allows developers to access and integrate the functionality of Lengoo with other... | No | Yes | Unknown | |
| Lexicala | Lexicala enables a multilingual lexical data platform that combines human-curated input and... | No | Yes | Unknown | |
| Librarious | Librarious is a place to catalog and share the things you have sitting on your shelves, such as... | No | Yes | Unknown | |
| LIFT System | The LIFT System REST API enables developers with the ability to access the core data structures of... | No | Yes | Unknown | |
| LimeSurvey RemoteControl 2 | The LimeSurvey API integrates surveys into applications. | No | Yes | Unknown | |
| Lingo24 Translation | Lingo24 is a translation API, able to process over 600 language to language combinations. | No | Yes | Unknown | |
| LingoHub | The LingoHub API allows developers to access their translation projects and resources... | No | Yes | Unknown | |
| Lingotek | The Lingotek API allows developers to submit content to be translated, check translation status,... | No | Yes | Unknown | |
| Lingr | From their site: Lingr is an open community of chatrooms. | No | Yes | Unknown | |
| Lingua Robot Dictionary | Lingua Robot API is a RESTful service providing an access to the data of over 800 000 English... | No | Yes | Unknown | |
| LinkTiger | LinkTiger is a link testing and analysis service that checks a selected website for broken links... | No | Yes | Unknown | |
| Linode | The Linode API lets you programmatically manipulate Linode Manager for virtual hosting. | No | Yes | Unknown | |
| Lionbridge onDemand | Lionbridge is a provider of translation, development, and testing solutions. | No | Yes | Unknown | |
| Liopa-LipRead | The Liopa-LipRead API enables applications to read a user's lip movements to verify if they said a... | No | Yes | Unknown | |
| Little Green Light | The Little Green Light API returns fundraising and donor management data to integrate into... | No | Yes | Unknown | |
| Live Helper Chat | The Live Helper Chat API provides chat features for open source and commercial purposes. | No | Yes | Unknown | |
| LiveDirectory | LiveDirectory is an organization with the stated goal to make the Internet more interactive, more... | No | Yes | Unknown | |
| LiveLeader Data Export | Kalibera LiveLeader is a live chat based support service. | No | Yes | Unknown | |
| LivePerson Predefined Categories | LivePerson is a provider of real-time communication solutions that facilitate the identification... | No | Yes | Unknown | |
| LivePerson Predefined Content | LivePerson is a provider of real-time communication solutions that facilitate the identification... | No | Yes | Unknown | |
| LiveZilla | LiveZilla is a customer support platform with features such as masked IP addresses for privacy,... | No | Yes | Unknown | |
| LiveZilla Chat Bot | The LiveZilla Chat Bot API allows you to provide premium customer service by chatting live with... | No | Yes | Unknown | |
| Living Actor | Living Actor is a software as a service program that customizes 3D avatars for the virtual world. | No | Yes | Unknown | |
| Lob International Verifications | The Lob International Verifications API supports address verification for non-US addresses. | No | Yes | Unknown | |
| Lob Letters | The Lob Letters API simplifies the printing and mailing of letters. | No | Yes | Unknown | |
| LocalWiki | LocalWiki is an online platform that allows users and communities to create and share local... | No | Yes | Unknown | |
| logentries | Logentries allows any user to harness the power of log data and convert it into actionable insights. | No | Yes | Unknown | |
| LogicBoxes | The LogicBoxes API is a full-control set of programming interfaces that developers and resellers to... | No | Yes | Unknown | |
| LogMeIn Rescue | LogMeIn Rescue provides solutions for remote control, file sharing, systems management, data... | No | Yes | Unknown | |
| Loopia | Loopia is one of Sweden's largest web hosting companies, managing more than 800,000 domain names. | No | Yes | Unknown | |
| LostAndFound | The LostAndFound API allows developers to programmatically access web-based lost and found... | No | Yes | Unknown | |
| LotteryFeed | LotteryFeed is an online company that provides information on lottery results in North America and... | No | Yes | Unknown | |
| LucyBot Request | The LucyBot Request API uses basic HTTP with returns in JSON. | No | Yes | Unknown | |
| Luminati Monetization JavaScript | The Luminati Monetization JavaScript API provides indirect access to the Luminati SDK. | No | Yes | Unknown | |
| Luminati Proxy Manager | The Luminati Proxy Manager API is a forward HTTP/HTTPS proxy that can accelerate, compress, rotate,... | No | Yes | Unknown | |
| Lumo Flights | The Lumo Flights API allows developers to get realtime and predictive flight statuses for flights... | No | Yes | Unknown | |
| MAAS | The MAAS API for data center management (DCM) helps users automate and optimize provisioning for... | No | Yes | Unknown | |
| MacroFab | The MacroFab REST API allows developers to access and integrate the functionality of MacroFab with... | No | Yes | Unknown | |
| MaePaySoh | The MaePaySoh REST API allows developers to access and integrate the functionality of MaePaySoh... | No | Yes | Unknown | |
| magayo Lottery Data | Integrate lottery results into your website or application with magayo's Lottery Data API. | No | Yes | Unknown | |
| MakePlans | MakePlans is an online scheduling and appointment setting service. | No | Yes | Unknown | |
| MakePrintable | The MakePrintable API allows developers to integrate features for making 3D models printable into... | No | Yes | Unknown | |
| ManageIQ | ManageIQ is a hybrid cloud management and automation platform that enables organizations to deploy,... | No | Yes | Unknown | |
| Managly | Managly offers a project management system which provides several tools for businesses such as... | No | Yes | Unknown | |
| Manheim | The Manheim API returns data of car dealerships, aiming to optimize sales. | No | Yes | Unknown | |
| Manybots Server | Manybots is a platform that lets users capture, explore and analyze their activities. | No | Yes | Unknown | |
| Markdown Guide | The Markdown Guide API in JSON format returns a markup language to format virtually any document. | No | Yes | Unknown | |
| Market Intelligence Network | Market Intelligence Network is a geospatial tool that displays and analyzes IHS (Information... | No | Yes | Unknown | |
| Mashery | Mashery provides a scalable and secure on-demand infrastructure for an API to enable delivery of... | No | Yes | Unknown | |
| Matchbox Address | The Matchbox Address REST API allows developers to access and integrate the functionality of... | No | Yes | Unknown | |
| MECAPI | The service provides web access to the MeCab language analysis tool, which breaks down Japanese... | No | Yes | Unknown | |
| MediaMarkup | MediaMarkup is a web based application that helps creative people manage their design review and... | No | Yes | Unknown | |
| MediaTemple | Web hosting company MediaTemple provides an API to access many of its services, such as adding... | No | Yes | Unknown | |
| Megaventory | Megaventory is a web-based inventory, order management, and reporting solution for small and medium... | No | Yes | Unknown | |
| Meisterplan | The Meisterplan API returns planning data for project portfolio and resource management software... | No | Yes | Unknown | |
| Men & Mice | The Men & Mice API in REST architecture returns IP infrastructure data in JSON and XML formats. | No | Yes | Unknown | |
| Mera Caar | This API can be used for getting details about car components in a format that has been defined by... | No | Yes | Unknown | |
| Mercedes-Benz Electric Vehicle Status | The Mercedes-Benz Electric Vehicle Status API enables developers with the ability to retrieve the... | No | Yes | Unknown | |
| Mercedes-Benz Pay As You Drive Insurance | The Mercedes-Benz Pay As You Drive Insurance API allows you to get information about the odometer... | No | Yes | Unknown | |
| Mercury | Web parser | apiKey |
Yes | Unknown | |
| Mercury Retrograde | The Mercury Retrograde API allows developers to determine whether Mercury is in retrograde for a... | No | Yes | Unknown | |
| Merriam.IO | It's a Translation and Language Detection Cloud API based on Google Translate. | No | Yes | Unknown | |
| Metadata Extractor | Extract Exif, XMP, IPTC, ICC, JFIF, MPEG, QuickTime, PDF, Flash and Photoshop Metadata from any file | No | Yes | Unknown | |
| Metaname | Metaname is a professional-grade, New Zealand-based domain name management service. | No | Yes | Unknown | |
| Mgnet.me shortener | Mgnet.me is a shortener for magnet: URI scheme. | No | Yes | Unknown | |
| Microsoft Azure Active Directory Graph REST | This API provides programmatic access to Azure Active Directory and allows apps to perform; create,... | No | Yes | Unknown | |
| Microsoft Azure Cognitive Services Content Moderator Reviews | The Microsoft Azure Cognitive Services Content Moderator Reviews API allows developers to create... | No | Yes | Unknown | |
| Microsoft Azure Cognitive Services Content Moderator Text Moderation | The Microsoft Azure Cognitive Services Content Moderator Text Moderation API allows developers to... | No | Yes | Unknown | |
| Microsoft Azure Cognitive Services Content Moderator Workflows | The Microsoft Azure Cognitive Services Content Moderator Workflows API allows developers to create,... | No | Yes | Unknown | |
| Microsoft Azure Cognitive Services QnA Maker | The Microsoft Azure Cognitive Services QnA Maker API creates a conversational question-and-answer... | No | Yes | Unknown | |
| Microsoft Azure Cognitive Services Translator Speech | The Microsoft Azure Cognitive Services Translator Speech API enables developers to add end-to-end,... | No | Yes | Unknown | |
| Microsoft Azure Cognitive Services Translator Text | The Microsoft Azure Cognitive Services Translator Text API enables developers to translate text in... | No | Yes | Unknown | |
| Microsoft Bot Framework Bot Connector | The Microsoft Bot Framework Bot Connector REST API allows developers to access and integrate the... | No | Yes | Unknown | |
| Microsoft Bot Framework Bot Direct Line | The Microsoft Bot Framework Bot Direct Line REST API allows developers to access and integrate the... | No | Yes | Unknown | |
| Microsoft Bot Framework Bot State | The Microsoft Bot Framework Bot State REST API allows developers to access and integrate the bot... | No | Yes | Unknown | |
| Microsoft Cognitive Services Recommendations | The Microsoft Cognitive Services Recommendations API offers product recommendations to customers in... | No | Yes | Unknown | |
| Microsoft Dynamics CRM Web | Microsoft Dynamics CRM Web API is a feature available to Microsoft Dynamics CRM Online... | No | Yes | Unknown | |
| Microsoft IIS | The Microsoft IIS REST API allows developers to access and integrate the functionality of Microsoft... | No | Yes | Unknown | |
| Microsoft Translator | The Microsoft Translator API is a cloud based machine translation service. | No | Yes | Unknown | |
| Mifiel | The Mifiel API allows developers to programmatically manage documents and certificates within their... | No | Yes | Unknown | |
| Millheat | Millheat enables the control of Mill WiFi products such as independent devices and individually... | No | Yes | Unknown | |
| MindTouch Deki Wiki | REST-based API with 99 methods that expose MindTouch Deki Wiki's complete functionality. | No | Yes | Unknown | |
| Minimal Reader | Minimal Reader helps users to set up a customized RSS reader. | No | Yes | Unknown | |
| MinuteDock | MInuteDock is a time tracking service that can integrate with existing accounts and project... | No | Yes | Unknown | |
| mite | mite is a sleek online time tracking tool. | No | Yes | Unknown | |
| Modernizr | The Modernizr API allows developers to recognize HTML, CSS, and JavaScript from a website. | No | Yes | Unknown | |
| Monasca | The Monasca API allows developers to integrate monitoring as a service into their own systems and... | No | Yes | Unknown | |
| Mondial Relay | Mondial Relay (trans. Global Relay) is a shipping company that delivers parcels to individuals. | No | Yes | Unknown | |
| Monitro | Monitro is a website monitoring service. Users can monitor up to three sites for free, and then... | No | Yes | Unknown | |
| MotaWord | The MotaWord API provides translations in over 70 languages. | No | Yes | Unknown | |
| Movieplayer.it | Movieplayer.it is an Italian website that provides information about movies and TV shows, including... | No | Yes | Unknown | |
| Mozilla Intersection Observer | The Mozilla Intersection Observer API allows developers to observe changes in how a target element... | No | Yes | Unknown | |
| Mozilla Network Information | The Mozilla Network Information API conveys data of the connectivity statuses of devices to... | No | Yes | Unknown | |
| Mozilla Page Visibility | With the Mozilla Page Visibility API, users know when a page is in focus, considering tabbed... | No | Yes | Unknown | |
| Mozilla UserScripts WebExtensions | The Mozilla UserScripts WebExtensions API allows you to run third party scripts for extensions in... | No | Yes | Unknown | |
| Mozilla Web Animations | The Web Animations concept allows you to synchronize and time changes to a Web page’s presentation. | No | Yes | Unknown | |
| Mozilla Web Workers | The Mozilla Web Workers API is a browser-based API for handling web workers, which are mechanisms... | No | Yes | Unknown | |
| mParticle Events | The mParticle Events API retrieves HTTP-based events than can be used to power mParticle’s Audience... | No | Yes | Unknown | |
| mParticle Profile | The Profile API can be used to query identities, user attributes, audience memberships, and other... | No | Yes | Unknown | |
| MrTickTock | MrTickTock is a time tracking tool that provides professionals with time management services for... | No | Yes | Unknown | |
| MTCaptcha | MTCaptcha is a smart captcha service that is GDPR and WCAG compliant, providing the confidence of... | No | Yes | Unknown | |
| My Opera | My Opera is the support community for the Opera Web browser. | No | Yes | Unknown | |
| My Simple Contract | The My Simple Contract API returns contracts and electronic signature data in JSON format. | No | Yes | Unknown | |
| MyBuilding | The service provides rental property management information functions such as vacancy... | No | Yes | Unknown | |
| MyNewsdesk | MyNewsdesk.com API Platform offers structured press information from over 10,000 Nordic and... | No | Yes | Unknown | |
| MYOB Essentials Accounting | MYOB Essentials is an online accounting solution. | No | Yes | Unknown | |
| MYOB EXO | The MYOB EXO API is a platform designed to connect with EXO Business databases. | No | Yes | Unknown | |
| MyParcel.com | The MyParcel.com API allows you to send shipments using the MyParcel.com platform. | No | Yes | Unknown | |
| MyPostcard | MyPostcard sends photos as real postcards worldwide. | No | Yes | Unknown | |
| MyShows | MyShows is a Russian site which allows users to view and rate television shows online. | No | Yes | Unknown | |
| MyTelemedicine | MyTelemedicine API enables developers to interact with the MyTelemedine platform. | No | Yes | Unknown | |
| myTNT | TNT is an Italian shipping service that provides its clients with custom shipping solutions. | No | Yes | Unknown | |
| MyWebzz | MyWebzz is a drag and drop website creator that offers everything you need to build a unique... | No | Yes | Unknown | |
| n0tice | n0tice.com is a public notice board. It offers APIs for pulling and adding data to news reports,... | No | Yes | Unknown | |
| Name Parser | Name Parser is an API service that splits a complete name into useful information such as first... | No | Yes | Unknown | |
| name.com | Name.com provides internet domain name registration and web hosting services. | No | Yes | Unknown | |
| namebay | Namebay provides domain name registration services, including a reseller program. | No | Yes | Unknown | |
| Namely | The Namely REST API allows developers to access and integrate the functionality of Namely with... | No | Yes | Unknown | |
| NamePrism | NamePrism offers well-formatted results containing nationality and probability pairs for the... | No | Yes | Unknown | |
| NaMoMemes | Memes on Narendra Modi | No | Yes | Unknown | |
| NamSor Gendre | NamSor designs name recognition software that specializes in accurately extracting information from... | No | Yes | Unknown | |
| nanoSDK Language Detect | The nanoSDK Language Detect API can help you find out which language is used within a text. | No | Yes | Unknown | |
| nanoSDK Text to Speech | The nanoSDK Text to Speech API allows you to convert text into an audio file. | No | Yes | Unknown | |
| nanoSDK Text Translate | The nanoSDK Text Translate API allows you to translate texts from a language to another. | No | Yes | Unknown | |
| NAOqi Core | Aldebaran Robotics creates, manufactures and sells humanoid and programmable robots. | No | Yes | Unknown | |
| NAOqi DCM | The NAOqi DCM API comes with a list of core modules that allow developers to manage the Device... | No | Yes | Unknown | |
| NAOqi Motion | The NAOqi Motion API comes with a list of core modules that allow developers to facilitate making... | No | Yes | Unknown | |
| NAOqi Trackers | The NAOqi Trackers API comes with a list of core modules that allow developers to make NAO track... | No | Yes | Unknown | |
| NAOqi Vision | The NAOqi Vision API comes with a list of core modules that allow developers to manage the vision... | No | Yes | Unknown | |
| National Agricultural Statistics Service VegScape | The VegScape API provides access to geospatial data of daily, weekly averaged, and biweekly... | No | Yes | Unknown | |
| Nationwide NW Life Insurance Pending New Business | The Nationwide NW Life Insurance Pending New Business API enables developers to get information on... | No | Yes | Unknown | |
| Navarik Inspection | The Navarik Inspection API allows oil companies and inspection vendors to submit and retrieve data... | No | Yes | Unknown | |
| NearlyFreeSpeech.NET | NearlyFreeSpeech.NET provides web hosting for static and dynamic sites, DNS service, domain... | No | Yes | Unknown | |
| Neocities | The Neocities API allows developers to make changes to their websites programmatically. | No | Yes | Unknown | |
| Neofonie TXT Werk | TXT Werk is a lightweight text analytic API that specializes in analyzing German texts. | No | Yes | Unknown | |
| Netless | The Netless API enables an interactive, collaborative whiteboard in applications. | No | Yes | Unknown | |
| Networked Help Desk | The Networked Help Desk provides a way that companies can uniformly communicate help desk... | No | Yes | Unknown | |
| New York Art Beat | This XML API allows your Web application acces to NY Art and Design information and is used by... | No | Yes | Unknown | |
| New Zealand Post Label Printing | New Zealand Post is provides mail and courier delivery services and operates postal centers... | No | Yes | Unknown | |
| New Zealand Post Rate Finder | NZ Post is a New Zealand based postal service where users can ship packages, send letters, and... | No | Yes | Unknown | |
| New Zealand Post Suggest Addresses Service | The New Zealand Post Suggest Addresses Service API features the prediction functionality for auto... | No | Yes | Unknown | |
| New Zealand Post Tracking | The service from New Zealand Post tracks parcel delivery for most categories of packages carried by... | No | Yes | Unknown | |
| NewOCR | The NewOCR API integrates character recognition into applications. | No | Yes | Unknown | |
| NewsBlur | NewsBlur is an RSS feed reader. NewsBlur's API allows users to retrieve their feeds, feed counts,... | No | Yes | Unknown | |
| NICE inContact Admin | The NICE inContact Admin API interacts with system objects in the NICE inContact system. | No | Yes | Unknown | |
| NICE inContact Agent | The NICE inContact Agent API allows developers to create, manage, and end "agent sessions". | No | Yes | Unknown | |
| NICE inContact Authentication | The NICE inContact Authentication API allows developers to interact with the system resources... | No | Yes | Unknown | |
| NICE inContact CXone | The NICE inContact CXone API allows developers to manage access keys, validate a key, or return a... | No | Yes | Unknown | |
| NICE inContact Data Extraction | The NICE inContact Data Extraction API allows developers to extract data from CXone for external... | No | Yes | Unknown | |
| NICE inContact Media Playback | The NICE inContact Media Playback API allows developers to access CXone recording media. | No | Yes | Unknown | |
| NICE inContact Patron | The NICE inContact Patron API provides developers with resources for creating patron-facing... | No | Yes | Unknown | |
| NICE inContact Real-Time Data | The NICE inContact Real-Time Data API allows developers to get real-time data from the inContact... | No | Yes | Unknown | |
| NICE inContact Reporting | The NICE inContact Reporting API allows developers to retrieve various types of calculated data... | No | Yes | Unknown | |
| NiceNic | NiceNic is a Hong Kong based company providing domain name, hosting, and other internet services. | No | Yes | Unknown | |
| NoXLS html2pdf | NoXLS html2pdf API allows you to create a PDF from a web page with full HTML/CSS support. | No | Yes | Unknown | |
| Nozbe | Nozbe is a Getting Things Done (GTD) style task management service. | No | Yes | Unknown | |
| nVent Nuheat Open | The nVent Nuheat Open API integrates smart thermostats, returning JSON formats, supporting HTTP... | No | Yes | Unknown | |
| NVMS | National Vendor Management Services (NVMS) is a property inspection and preservation company that... | No | Yes | Unknown | |
| O-Maniac! | The O-Maniac! URL shortening service provides shortened URLs. | No | Yes | Unknown | |
| OCLC Kindred Works | OCLC Kindred Works is an experimental service providing content-based recommendations for items... | No | Yes | Unknown | |
| OCRestful | The OCRestful API retrieves optical character recognition data in JSON and XML. | No | Yes | Unknown | |
| Octopart | Electronic part data for manufacturing, design, and sourcing | apiKey |
Yes | Unknown | |
| ODP Search | ODP is a Chinese site that provides search and aggregation of top journals and articles for a... | No | Yes | Unknown | |
| Office 365 Calendar | The Office 365 Calendar API allows full access to a user's calendar groups, calendars, and events,... | No | Yes | Unknown | |
| Office 365 Contacts | The Office 365 Contact API gives full access to a user's contacts and contact groups they have... | No | Yes | Unknown | |
| Office 365 Notifications | The Office 365 Notifications API allows developers to integrate their applications with the... | No | Yes | Unknown | |
| Office 365 Sync a Calendar View | The Office 365 Sync a Calendar View API allows developers to integrate their applications with the... | No | Yes | Unknown | |
| Oh Dear! | Oh Dear! is a monitoring service for websites. | No | Yes | Unknown | |
| OiDViEW MIB | OiDViEW MIB API allows users to query the online SNMP MIB database from anywhere in the world. | No | Yes | Unknown | |
| Omron | The Omron API integrates end user’s blood pressure and fitness activity data with applications. | No | Yes | Unknown | |
| Onederful | The Onederful API provides RESTful conventions to access dental insurance companies' data, allowing... | No | Yes | Unknown | |
| OneOutBox | OneOutBox offers Web Service integration with outbound FAX for the transmission of invoices,... | No | Yes | Unknown | |
| OneSpace | OneSpace Project Center is a platform for managing work with a team of freelancers or private... | No | Yes | Unknown | |
| OpaVote | The OpaVote API manages online elections from a user's servers. | No | Yes | Unknown | |
| OpenADR | Open Automated Demand Response (OpenADR) is an open and standardized way for electricity providers... | No | Yes | Unknown | |
| OpenBR | The OpenBR project has produced a new language for image recognition used to express algorithms. | No | Yes | Unknown | |
| Openfire | Openfire is a real time collaboration server that uses XMPP, an open protocol for instant messaging. | No | Yes | Unknown | |
| OpenMenu | Our API is all about making search easy. Your application can leverage our 500K+ menus and 24+... | No | Yes | Unknown | |
| OpenPrescribing | The OpenPrescribing API delivers spending data about drugs in England. | No | Yes | Unknown | |
| OpenSRS | OpenSRS API is intended for Resellers who offer domains and supporting services to their customers. | No | Yes | Unknown | |
| Opera Add-ons | Opera Software is a leading provider of fast, secure, and user-friendly browser solutions. | No | Yes | Unknown | |
| Opera Sidebar Action | Opera Software is a leading provider of fast, secure, and user-friendly browser solutions. | No | Yes | Unknown | |
| Opera Speed Dial | Opera is a software company and provider of the Opera web browser, which runs on a variety of... | No | Yes | Unknown | |
| OpinionCrawl Sentiment Analysis | The OpinionCrawl Sentiment API allows client applications to assess sentiment on a Web page or a... | No | Yes | Unknown | |
| Optimal Booking | Optimal Booking API allows developers to integrate their applications with the hotel room revenue... | No | Yes | Unknown | |
| Osmek | Osmek is a web publishing system hosted in the cloud. | No | Yes | Unknown | |
| Outlook Task REST | This REST API allows you to create, read, synchronize, update, and delete a user's tasks that are... | No | Yes | Unknown | |
| OverDrive Checkouts | OverDrive is an online company that provides users a way to access eBooks and electronic materials... | No | Yes | Unknown | |
| OverDrive Holds | OverDrive is an online company that provides users a way to access eBooks and electronic materials... | No | Yes | Unknown | |
| Overdrive Library Account | OverDrive is an online company that provides users a way to access eBooks and electronic materials... | No | Yes | Unknown | |
| OverDrive Metadata | OverDrive is an online company that provides users a way to access eBooks and electronic materials... | No | Yes | Unknown | |
| OverDrive Patron Information | OverDrive is an online company that provides users a way to access eBooks and electronic materials... | No | Yes | Unknown | |
| OVH.com | OVH is the No. 1 web hosting company in France and second largest in Europe. | No | Yes | Unknown | |
| Ow.ly | Ow.ly is a link shortening and expanding application that allows users to either shrink or expand... | No | Yes | Unknown | |
| Oxford English Dictionary | The OED bills itself as the definitive record of the English language. | No | Yes | Unknown | |
| Paccurate | Paccurate is a shipping and cartonization API that generates cost-effective packing solutions... | No | Yes | Unknown | |
| PactSafe eSignature | The PactSafe eSignature API allows developers to embed "click-to-sign" electronic signatures into... | No | Yes | Unknown | |
| PagerTree | The PagerTree API integrates a scheduling and on-call system that allows developers to alert the... | No | Yes | Unknown | |
| PamFax | PamFax is an internet faxing service. PamFax is available for Windows, Macintosh, Linux and Android... | No | Yes | Unknown | |
| Pandorabots | Pandorabots is the world's leading platform for building and deploying chatbots. | No | Yes | Unknown | |
| Pantry | Free JSON storage for small projects | No | Yes | Yes | Unknown |
| Paphus Live Chat | Paphus Live Chat enables users to create live chat channels, chat rooms, forums, and chat bots and... | No | Yes | Unknown | |
| Para | The Para API is a general-purpose backend framework for the cloud that provides a REST... | No | Yes | Unknown | |
| ParcelMonkey | ParcelMonkey is a parcel tracking and delivery service based in the U.K. | No | Yes | Unknown | |
| Parsebot | The Parsebot API allows developers to extract content from a website. | No | Yes | Unknown | |
| Parsed JSON WHOIS | The JSON WHOIS API provides fetching and parsing features. | No | Yes | Unknown | |
| Parto Flight | The Parto Flight API intends to offer developers access to airline pricing with different local... | No | Yes | Unknown | |
| Patrons Account Information | The Patrons Account Information API (PAIA) provided by GBV, provides methods for looking up loaned... | No | Yes | Unknown | |
| PC2Paper Letter Pricing | PC2Paper is a website that enables users to send actual letters and cards from the Internet. | No | Yes | Unknown | |
| PDF Otter | The PDF Otter API allows developers to fill in PDF templates programmatically. | No | Yes | Unknown | |
| PDF.co | PDF.co API is a complete API that works with e-signatures, document signing, management and... | No | Yes | Unknown | |
| PDF.Co Splitting | The PDF.Co Splitting API splits a PDF document. | No | Yes | Unknown | |
| PDF2Data | The service provides analysis and data extraction from a number of popular application file types,... | No | Yes | Unknown | |
| PDFmyURL | This API allows users to convert webpages into PDF docuuments. | No | Yes | Unknown | |
| PDFSwitch | PDFSwitch is a high-quality, easy to implement HTML to PDF conversion API. | No | Yes | Unknown | |
| PeerJS | PeerJS provides a simple peer-to-peer data sharing API that functions by wrapping WebRTC. | No | Yes | Unknown | |
| Pemilu Berita | The Pemilu Berita API provides a curated news feed for the 2014 Indonesian elections. | No | Yes | Unknown | |
| Pemilu Candidate | The Pemilu Candidate API allows users to retrieve lists of candidates, parties, provinces, and... | No | Yes | Unknown | |
| Pemilu Election Results | The Pemilu Election Results API allows users to retrieve information on Indonesia's 2014 election... | No | Yes | Unknown | |
| Pemilu FAQ Presiden | The Pemilu FAQ Presiden API allows users to retrieve answers to common questions about the 2014... | No | Yes | Unknown | |
| Pemilu Laporan Pelanggaran | The Pemilu Laporan Pelanggaran API returns election violation reports. | No | Yes | Unknown | |
| Pemilu Pendidikan | The Pemilu Pendidikan API enables users to retrieve answers to common questions about the 2014... | No | Yes | Unknown | |
| Pemilu Peraturan | The Pemilu Peraturan API allows users to retrieve answers to questions about the rules and... | No | Yes | Unknown | |
| Pen.io | Pen.io is a fast and simple solution for creating basic text-based web pages. Users can use the Pen. | No | Yes | Unknown | |
| Perfect Tense | The Perfect Tense API is an artificial intelligence powered spelling and grammar API. | No | Yes | Unknown | |
| Performance Timing | The Performance Timing API is designed to support the collection of high resolution performance... | No | Yes | Unknown | |
| Phaxio | Phaxio lets developers build faxing capabilities into systems with a simple API. | No | Yes | Unknown | |
| Phone Validation | Validate phone numbers globally | apiKey |
Yes | Yes | Unknown |
| Phteven | The Phteven API is a joke translation service that allows users to translate text from regular... | No | Yes | Unknown | |
| Pike13 | This API allows apps to retrieve and aggregate business data at business and franchise levels, and... | No | Yes | Unknown | |
| Pimatic Websocket | This API is a home automation control that uses the socket.io protocol. | No | Yes | Unknown | |
| Pingboard | Pingboard is an office management software solution. | No | Yes | Unknown | |
| Pingdom | From their site: Pingdom has a very strong and narrow focus. | No | Yes | Unknown | |
| PingER | PingER (Ping End-to-end Reporting) is a project for monitoring the end-to-end performance of... | No | Yes | Unknown | |
| Pitney Bowes DutyCalculator | This API enables a merchant to charge accurate import duty & taxes at checkout while offering a... | No | Yes | Unknown | |
| Pixel Encounter | SVG Icon Generator | No | Yes | No | Unknown |
| PlaceILive Neighborhood Matching Engine | The PlaceILive.com Match Neighborhood Recommendation Engine API provides the functionality of the... | No | Yes | Unknown | |
| Planbox | Planbox is a project management and collaboration service. | No | Yes | Unknown | |
| Plancake | Plancake is a free online project and task manager, easy-to-use and feature-rich. | No | Yes | Unknown | |
| PlanGrid | PlanGrid is a construction and planning platform designed for enterprise applications. | No | Yes | Unknown | |
| Planio | The Planio API allows users to access their project management resources programmatically. | No | Yes | Unknown | |
| PlanSource | The PlanSource API provides access to benefits, payroll, compliance, and billing data for employers... | No | Yes | Unknown | |
| Platform of Trust Identity | The Identity API provides means to create, update, and delete digital twins (identities) and manage... | No | Yes | Unknown | |
| Plesk XML | The Plesk XML API offers remote interaction with Plesk's server automation platform in order to... | No | Yes | Unknown | |
| Plivo Conference | The Plivo Conference API allows developers to list all ongoing conferences on their account. | No | Yes | Unknown | |
| Plivo Conference Member | The Plivo Conference Member API lets developers perform various functions such as hangup a member's... | No | Yes | Unknown | |
| Ploi | The Ploi API provides a way for developers to deploy any site, and enables you with the ability to;... | No | Yes | Unknown | |
| Plumbr | Plumbr is a monitoring system designed to detect issues in Java applications. | No | Yes | Unknown | |
| Point | UK-based free DNS hosting service, with e-mail, HTTP web forwarding, and API for easy DNS... | No | Yes | Unknown | |
| Pointer.gr | Pointer.gr is a Greek web hosting and Domain service that offers domain hosting, reseller hosting,... | No | Yes | Unknown | |
| Pony Ipsum | Pony Ipsum is a My Little Pony themed placeholder text generator. | No | Yes | Unknown | |
| Popcoin | The Popcoin API is a service that developers install into their own systems to generate variable... | No | Yes | Unknown | |
| PORDL | The PORDL API embeds public Web-accessible feeds. | No | Yes | Unknown | |
| positionstack | Forward & Reverse Batch Geocoding REST API | apiKey |
Yes | Unknown | |
| Post2Go | Post2Go API supports shipment, tracking and notifications for most couriers in Russia, Ukraine and... | No | Yes | Unknown | |
| Post2Go Shipment | Post2Go API supports shipment, tracking and notifications for most couriers in Russia, Ukraine and... | No | Yes | Unknown | |
| PostLinks.com | PostLinks.com is a text link brokerage that allows webmasters to buy and sell text links. | No | Yes | Unknown | |
| PowerReviews B2B | The PowerReviews B2B API enables developers to manage review answer sources, submit merchant... | No | Yes | Unknown | |
| PowerReviews Read Services | The PowerReviews Read Services API allows developers to access reviews by providing a merchant ID,... | No | Yes | Unknown | |
| Practice Panther | The Practice Panther API provides law practice management software solutions. | No | Yes | Unknown | |
| Prayer Times | Prayer Times is an application built for Muslims who live in non-Islamic countries and cannot hear... | No | Yes | Unknown | |
| Prefinery | Prefinery is a beta program invitation and management service for web apps and desktop software. | No | Yes | Unknown | |
| Pressbanking | Pressbanking provides online access to Belgian newspapers and periodicals. | No | Yes | Unknown | |
| Presshub.io | Presshub.io allows for developers to publish external site's articles and posts to many of the... | No | Yes | Unknown | |
| Pressmon.com | The Pressmon REST API queries an inputted word and returns it's different usages throughout varying... | No | Yes | Unknown | |
| Print Audit ICE | Print Audit is a company that develops printing-related software. | No | Yes | Unknown | |
| Printmotor Server | Printmotor is an online platform for creating and printing documents, such as flyers. | No | Yes | Unknown | |
| prismic.io | prismic.io API helps developers and designers build digital products with a fast and enjoyable way... | No | Yes | Unknown | |
| Probe Performance Monitoring | Probe Performance Monitoring can test latency, routing, and throughput from Internet Service... | No | Yes | Unknown | |
| Prodsmart | The Prodsmart API allows developers to access and integrate the functionality of Prodsmart with... | No | Yes | Unknown | |
| Productive | The Productive.io API returns JSON data to run an agency including sales pipeline, planning, time... | No | Yes | Unknown | |
| Progress WhatsUp Gold | The Progress WhatsUp Gold API enables users to connect their systems and clients to WhatsUp Gold's... | No | Yes | Unknown | |
| Promoter | The Promoter API returns JSON data of contacts, feedback, and campaign metrics in a database,... | No | Yes | Unknown | |
| Property Solutions | The service provides functions for managing rental properties, including attracting tenants and... | No | Yes | Unknown | |
| PropertyHub Real Estate | Agentpoint's PropertyHub Real Estate API provides real estate data about properties in Australia. | No | Yes | Unknown | |
| ProProfs Project | The ProProfs Project API allows developers to access and download data as well as develop... | No | Yes | Unknown | |
| Prototypster | The Prototypster API allows developers to integrate 3D printing services into their own... | No | Yes | Unknown | |
| PROVAB Hotel | Hotel API aggregates the most major Hotel API providers into a single interface to integrate into... | No | Yes | Unknown | |
| ProveTrust | ProveTrust is a service that incorporates social signals, user feedback, and identity verification... | No | Yes | Unknown | |
| Provjera Registracije - Croatian Car Registration | The Provjera Registracije - Croatian Car Registration API provides car registration information by... | No | Yes | Unknown | |
| ProWorkflow | ProWorkflow is a project management, workflow and time tracking solution for small to medium... | No | Yes | Unknown | |
| Proxybot | Proxybot is widely used for web scraping because it is capable of handling a large number of... | No | Yes | Unknown | |
| ProZ.com | Bring the power of the world's largest freelance translator network to your application. | No | Yes | Unknown | |
| PSA Insurance Solutions | The PSA Insurance Solutions API allows e-commerce business operators to easily integrate... | No | Yes | Unknown | |
| Public Holidays | Data on national, regional, and religious holidays via API | apiKey |
Yes | Yes | Unknown |
| Public Insight Network | The Public Insight Network helps connect newsrooms with public sources. | No | Yes | Unknown | |
| Publitweet | Publitweet offers a smarter way to publish Twitter on a website by enriching Twitter feeds to make... | No | Yes | Unknown | |
| Qordoba | The Qordoba API allows developers to access and integrate the functionality of Qordoba with other... | No | Yes | Unknown | |
| QRickit QR Code | The service generates QR codes that encode web URLs, email addresses, or other text for access by... | No | Yes | Unknown | |
| QRtag.net | The QRtag.net API returns QR codes in SVG or PNG images when developers request via URI/CRUD. | No | Yes | Unknown | |
| Qualisys | Qualisys is a provider of motion capture technology for clinical use, virtual reality, and... | No | Yes | Unknown | |
| Qualtrics | The service allows applications to integrate survey functionality, with specification of questions... | No | Yes | Unknown | |
| Quantact | The Quantact API allows control of Quantact's services over standard https, without logging into... | No | Yes | Unknown | |
| Queimadas INPE | Access to heat focus data (probable wildfire) | No | Yes | Unknown | |
| Quick Proxy | Get HTTP/HTTPS/Socks4/Socks5 Proxies Amount of proxies returned from API will based on how many... | No | Yes | Unknown | |
| QuickBlox | QuickBlox is a cloud-hosted backend platform providing communications functionality - chat, video... | No | Yes | Unknown | |
| Quire | The Quire REST API enables users to programmatically interact with Quire's broad set of project... | No | Yes | Unknown | |
| Quire Webhooks | The Quire Webhooks API provides notifications for Quire events. | No | Yes | Unknown | |
| Quora | Quora is a individual-focused question and answer site with an emphasis on tagging. | No | Yes | Unknown | |
| Quranwbw | The Quranwbw API retrieves the word by word English translation and transliteration of the Holy... | No | Yes | Unknown | |
| Qurl | From their site: Qurl is a free service, designed to make posting long URLs easier. | No | Yes | Unknown | |
| RACO Barcode | The service accepts parameters as input and returns barcode images encoding data from the request. | No | Yes | Unknown | |
| RallyUP | The RallyUP API enables developers to access fundraiser information including campaigns, users,... | No | Yes | Unknown | |
| random.org | Random.org is a true random number service that generates randomness via atmospheric noise. | No | Yes | Unknown | |
| RankCrew | RankCrew is a manual link building service providing SEO products for new and established sites. | No | Yes | Unknown | |
| Rapanui T-shirt Printing | The Rapanui T-shirt Printing REST API allows developers to access and integrate the functionality... | No | Yes | Unknown | |
| Rapleaf Personalization | Developers can use the Personalization API to recommend more relevant content, make emails more... | No | Yes | Unknown | |
| Readability | Readability is a subscription service that lets users bookmark articles/webpages and read them... | No | Yes | Unknown | |
| Readium | Readium is an EPUB reading system that can be deployed to browsers, embedded into browser... | No | Yes | Unknown | |
| ready2order | ready2order is an Austria-based providers of accounting and ecommerce software solutions. | No | Yes | Unknown | |
| ReadyTalk | ReadyTalk is a service for businesses to easily create and publish webinars, web conferencing, and... | No | Yes | Unknown | |
| RealMassive | The RealMassive REST API allows developers to access and integrate the functionality of RealMassive... | No | Yes | Unknown | |
| RealtyBaron Answers | RealtyBaron's Answers API is a free service that enables websites or mobile apps to add a... | No | Yes | Unknown | |
| Receptiviti | . | No | Yes | Unknown | |
| Recharge Billing | The Recharge Billing RESTful API integrates recurring billing into web services. | No | Yes | Unknown | |
| Reclamation Water Information System | The Reclamation Water Information System API enables users to retrieve recycled water data. | No | Yes | Unknown | |
| Recollect | Recollect, originally VanTrash, is a garbage and recycling collection reminder service. | No | Yes | Unknown | |
| Redox | Redox provides an API and an interoperable network that allows Digital Health Applications,... | No | Yes | Unknown | |
| Registered Domain Names Search | The Registered Domain Names Search API returns a list of domains with the queried words, phrases,... | No | Yes | Unknown | |
| ReLink | Relink allows users to collect, manage, and publish the content they have on the web. | No | Yes | Unknown | |
| Remember the Milk | The Remember The Milk API allows anyone to write applications that interact with Remember The Milk. | No | Yes | Unknown | |
| RentalSource | The RentalSource API integrates homes, apartments, and vacations rentals. | No | Yes | Unknown | |
| RentMetrics | RentMetrics provides real estate professionals with data and analyses that can help them understand... | No | Yes | Unknown | |
| RentRange Rental Rate | The Rental Rate API is a for websites that provides real estate or rental listings for website... | No | Yes | Unknown | |
| ResellerClub | Use the ResellerClub API to allow your resellers and you to create your own site and control panels... | No | Yes | Unknown | |
| Resellers Panel | Reseller API v.2.0 provides users an interface from which they can combine the option of having a... | No | Yes | Unknown | |
| Resilio Sync | The Resilio Sync API is available for purchase to integrate syncing into applications. | No | Yes | Unknown | |
| RESO RETS Web | The RESO RETS Web API integrates real estate standards into web, mobile, social, and HTTP-based... | No | Yes | Unknown | |
| Restpack HTML to PDF | The Restpack HTML to PDF API allows developers to capture live web pages and deliver them as PDF... | No | Yes | Unknown | |
| Retro Avatar | This API creates a unique random pixel image with a retro look for a given seed value. | No | Yes | Unknown | |
| REVE Chat | The REVE Chat API allows developers to add real-time chat functions to their web and mobile... | No | Yes | Unknown | |
| Reverso Localize | The Reverso Localize API allows developers to access and integrate the functionality of Reverso... | No | Yes | Unknown | |
| ReviewPro | The ReviewPro API allows you access to review data. | No | Yes | Unknown | |
| Reviewshake Supervisor | The Reviewshake Review Scraper API provides a way to use reviews in with no scraping, headless... | No | Yes | Unknown | |
| Reviso | The Reviso API allows developers to integrate accounting functions into their own applications and... | No | Yes | Unknown | |
| RewardOps | RewardOps is a cloud platform and RESTful API that allows you to manage all aspects of a rewards... | No | Yes | Unknown | |
| Rezdy | The Rezdy API in RESTful state integrates booking into tourism applications. | No | Yes | Unknown | |
| Rickshaw | The Rickshaw REST API allows developers to access and integrate the functionality of Rickshaw with... | No | Yes | Unknown | |
| RimuHosting DNS | RimuHosting specializes in Linux Virtual Private Server hosting plans, providing subscribed users... | No | Yes | Unknown | |
| Rio Branco Real Estate | Rio Branco Imobiliaria (trans. Rio Branco Real Estate) is a Brazilian Real Estate company. | No | Yes | Unknown | |
| Rithmio | The Rithmio REST API allows developers to access and integrate the functionality of Rithmio with... | No | Yes | Unknown | |
| Roaring Establishments | Shows a company's workplaces (geographical workplaces). | No | Yes | Unknown | |
| Roaring Event | With events you get information about all changes in the company data that has happened after the... | No | Yes | Unknown | |
| Roaring Norwegian no-Overview | Roaring Company overview API gives you a good overview about a company and includes contact and... | No | Yes | Unknown | |
| Roaring RightToSign | Signatory verification automatically answers if a person is entitled to sign a company by himself. | No | Yes | Unknown | |
| Roaring Signatory | Signatory list that contains the complete signatory text from the National Companies Registration... | No | Yes | Unknown | |
| Roaring SimpleSearch | Use the company name to find the company's organization number and legal form. | No | Yes | Unknown | |
| Robin | The Robin API integrates meeting booking features. | No | Yes | Unknown | |
| RoboMatic WebSocket | The RoboMatic WebSocket API enables persistent real-time communications between AI-powered chatbots... | No | Yes | Unknown | |
| Robot Text as a Service | The Robot Text as a Service API enables developers to keeps track of rules for web crawlers or SEO... | No | Yes | Unknown | |
| Rocket Matter | Rocket Matter is an online legal software system that offers a variety of features for legal... | No | Yes | Unknown | |
| Rocket Sign | The Rocket Sign API from Rocket Lawyer provides electronic signature integration into mobile and... | No | Yes | Unknown | |
| Rooftop CMS | The Rooftop CMS API facilitates the construction of apps that are responsive to cross-platform and... | No | Yes | Unknown | |
| Routehappy Scores & Happiness Factors | Routehappy is a product differentiation platform for air travel. | No | Yes | Unknown | |
| Royal Capital Mobile Recharge | The Royal Capital Mobile Recharge API facilitates recharge of prepaid mobile services for India. | No | Yes | Unknown | |
| RPS 101 | Rock, Paper, Scissors with 101 objects | No | Yes | Yes | Unknown |
| RunRun.it | RunRun.it is a project management and task management service. The RunRun. | No | Yes | Unknown | |
| RushWeb | RushWeb is a national clearinghouse for the courier and transportation industries that is designed... | No | Yes | Unknown | |
| Russian Car Number Plate Lookup | This API allows you to enter the number plate (Gos Nomer) of a Russian car, and receive back... | No | Yes | Unknown | |
| SafeButler Insurance | The SafeButler Insurance API supports insurance rate quotes for renters, home, and auto in the USA. | No | Yes | Unknown | |
| SafeNote Private Note Sharing | The SafeNote Private Note Sharing API allows developers to share encrypted private data that... | No | Yes | Unknown | |
| Salesforce Commerce Cloud Assignments | The Commerce Cloud Assignments API enables developers to find all promotions associated with a... | No | Yes | Unknown | |
| Salesforce Commerce Cloud Campaigns | The Commerce Cloud Campaigns API allows developers to create, update, and manage their campaigns... | No | Yes | Unknown | |
| Salesforce Commerce Cloud Coupons | The Commerce Cloud Coupons API allows developers to create, update, read, search for, and manage... | No | Yes | Unknown | |
| Salesforce Commerce Cloud Customers | The Commerce Cloud Customers API allows developers to manage customer information within a list and... | No | Yes | Unknown | |
| Salesforce Commerce Cloud Einstein Recommendations | The Commerce Cloud Einstein Recommendations API allows developers to access Einstein Product... | No | Yes | Unknown | |
| Salesforce Commerce Cloud Orders | The Commerce Cloud Orders API allows developers to update various order status values including... | No | Yes | Unknown | |
| Salesforce Commerce Cloud Products | The Commerce Cloud Products API allows developers to create, manage, and search for products within... | No | Yes | Unknown | |
| Salesforce Commerce Cloud Shopper Products | The Commerce Cloud Shopper Products API allows developers to show product details to customers in... | No | Yes | Unknown | |
| Salon Booking System | The Salon Booking API allows you to communicate with the Salon Booking System plugin installed on... | No | Yes | Unknown | |
| SanteSuite | SanteSuite enables healthcare related data with a REST interface. | No | Yes | Unknown | |
| Satisfeo | The service provides for online customer satisfaction surveys to collect responses from an... | No | Yes | Unknown | |
| Scalable Press Customization | Scalable Press is a provider of printing and fulfillment technologies. | No | Yes | Unknown | |
| Scalable Press Design | Scalable Press is an on-demand printing and fulfillment service that takes orders through an API. | No | Yes | Unknown | |
| Scalable Press Order | Scalable Press is an on-demand printing and fulfillment service that takes orders through an API. | No | Yes | Unknown | |
| Scalable Press Product | Scalable Press is an on-demand printing and fulfillment service that takes orders through an API. | No | Yes | Unknown | |
| Scalable Press Quote | Scalable Press is an on-demand printing and fulfillment service that takes orders through an API. | No | Yes | Unknown | |
| Scanbot | Scanbot is a document scanning platform that enables business process digitization. | No | Yes | Unknown | |
| Schedjoules Calendar | Schedjoules is an in-app calendar store that has over 180,000 public calendars that include sports,... | No | Yes | Unknown | |
| Schenker Norway Webservices | DB Schenker is a Norwegian shipping service that operates over land, ocean, and air. | No | Yes | Unknown | |
| Scout App | Scout App aims to provide a server with a clean and reliable hosted solution to monitor Linux... | No | Yes | Unknown | |
| ScrapeBoss | The ScrapeBoss API offers a main content extractor powered by AI. | No | Yes | Unknown | |
| Scraper | The Scraper API handles proxies, browsers, and CAPTCHAs and allows you to scrape any web page. | No | Yes | Unknown | |
| ScrapingBee | The ScrapingBee API enables web scraping tools in applications. | No | Yes | Unknown | |
| Screen.rip | Screen.rip is an API to take web site screenshots. | No | Yes | Unknown | |
| Screendoor | Screendoor is a form-building service that allows users to drag and drop text boxes, checkboxes,... | No | Yes | Unknown | |
| ScreenshotsCloud | Screenshots Cloud is a platform for generating instant high-quality browser screenshots using a... | No | Yes | Unknown | |
| Scribendi Editing Services | Scribendi provides proofreading services. Users can get quotes, place and manage orders, review the... | No | Yes | Unknown | |
| Scrumwise | The Scrumwise API allows you to programmatically access and modify your data in Scrumwise. | No | Yes | Unknown | |
| Sculpteo | Sculpteo is an online 3D printing service. | No | Yes | Unknown | |
| Seeuletter | The Seeuletter API allows developers to send physical mail or postcards programmatically using... | No | Yes | Unknown | |
| selfoss | selfoss functions as a multipurpose RSS reader and aggregation web application. | No | Yes | Unknown | |
| Semantic Engines Semantic | The Semantic Engines Semantic API is deployed in a computing cloud and powers tools, including... | No | Yes | Unknown | |
| SeniorAdvisor | The SeniorAdvisor API allows users to programmatically access a directory of almost 100,000... | No | Yes | Unknown | |
| SensorLogic | The service provides remote monitoring of server and network resources via a platform-as-a-service... | No | Yes | Unknown | |
| SEOgadget Links | SEOgadget is an internet marketing agency specializing in conversion rate optimization analysis and... | No | Yes | Unknown | |
| SEOMonitor | The SEOMonitor API integrates search engine optimization features into applications. | No | Yes | Unknown | |
| ServeManager | The ServerManager API integrates time saving software resources into applications, specializing in... | No | Yes | Unknown | |
| Server Density Monitoring | Server Density is a server monitoring and hosting service. | No | Yes | Unknown | |
| ServerMojo | ServerMojo is a remote server monitoring service. | No | Yes | Unknown | |
| Service Rocket Scaffolding | ServiceRocket is a software adoption company. | No | Yes | Unknown | |
| Shapeways | Shapeways is a 3D printing service that allows users to order custom-designed 3D objects online. | No | Yes | Unknown | |
| Share-Online | Share-Online is a file hosting and sharing site built with an emphasis on simple and fast operation. | No | Yes | Unknown | |
| ShareFile | Citrix ShareFile is a file sharing application. | No | Yes | Unknown | |
| SharePoint 2013 | Sharepoint 2013 API allows developers to interact remotely with SharePoint data using technology... | No | Yes | Unknown | |
| SherpaDesk | The SherpaDesk API supports URI Query String/CRUD, JSON, and JSONP as requests and JSON, JSONP,... | No | Yes | Unknown | |
| ShiftZen | ShiftZen is used to schedule shifts for employees working at small to large restaurants. | No | Yes | Unknown | |
| shipcloud | shipcloud is a cloud-based shipping service provider for sending and tracking packages as well as... | No | Yes | Unknown | |
| shipcloud Webhooks | This is a shipcloud Webhooks API for the shipping services provided by shipcloud.io. | No | Yes | Unknown | |
| ShipEngine Webhooks | This ShipEngine Webhooks API exposes asynchronous operations for long running operations such as... | No | Yes | Unknown | |
| ShipHawk | With ShipHawk, users can ship items from city to city in the United States. | No | Yes | Unknown | |
| ShipNerd | The ShipNerd API returns JSON formats with shipping data including rates and labels. | No | Yes | Unknown | |
| Shop4Api Identity Check | The Shop4Api Identity Check verifies if the name of a person matches the given address, available... | No | Yes | Unknown | |
| Short.cm | The Short.cm API shorten domain links. It is available in REST architecture with API Keys, offering... | No | Yes | Unknown | |
| Shorten.REST | The Most Flexible, Robust, Scale-able, Transactional, URL Shortening RESTful API. | No | Yes | Unknown | |
| Shortify | The Shortify API is an easy to implement REST API providing URL shortening services. | No | Yes | Unknown | |
| Shorty | Shorty is a tool for creating shorter, human- readable links from long URLs. | No | Yes | Unknown | |
| Shotgun | Shotgun is a service for creative studios. | No | Yes | Unknown | |
| Shr.Im | Shr.Im is a website that lets users sign in with their Twitter accounts to create short URLs and... | No | Yes | Unknown | |
| SightMill Webhooks | The Webhook API for the SightMill NPS survey platform can receive webhook requests including the... | No | Yes | Unknown | |
| Signiant Jet | The Signiant Jet API allows transferring files and content between systems. | No | Yes | Unknown | |
| SimilarWeb Website Categorization | The service provides categorization of website by domains according to the provider's... | No | Yes | Unknown | |
| SimilarWeb Website Category Ranking | The service provides analysis of a website to evaluate its content and functional categories and... | No | Yes | Unknown | |
| SimilarWeb Website Country Ranking | The service provides rankings indicating the countries from which traffic visits a specified... | No | Yes | Unknown | |
| SimilarWeb Website Global Ranking | The service provides a numerical ranking to indicate a website's popularity and influence. | No | Yes | Unknown | |
| SimilarWeb Website Tagging | The service provides analysis of a website's content to indicate tags that accurately detect and... | No | Yes | Unknown | |
| SimpleName | The service checks submitted New Zealand (. | No | Yes | Unknown | |
| Simplenote | Simplenote stores notes, lists, ideas and many other items. | No | Yes | Unknown | |
| SimplyHosting | The SimplyHosting API allows you to Order SimplyHosting Products, Manage orders, Manage servers,... | No | Yes | Unknown | |
| Singapore Airlines Flight Booking | The Singapore Airlines Flight Booking API allows you to retrieve offers, complete orders and... | No | Yes | Unknown | |
| Singapore Airlines Flight Information | Singapore Airlines Flight Information API allows you to retrieve customers latest information on... | No | Yes | Unknown | |
| Site24x7 | Site24x7 provides a website monitoring service for users. | No | Yes | Unknown | |
| Sitecore | The Sitecore API in REST architecture returns JSON data for implementing customer intelligence and... | No | Yes | Unknown | |
| SiteUptime | SiteUptime is a website monitoring service. | No | Yes | Unknown | |
| Size My Tires | The Size My Tires API allows tire shops to search for the stock tire size of a specific make,... | No | Yes | Unknown | |
| Skedulo | The Skedulo API offers workforce management capabilities and resources associated with access... | No | Yes | Unknown | |
| SketchApp JavaScript | The SketchApp JavaScript API provides indirect access to Sketch website design tools including a... | No | Yes | Unknown | |
| Skills Library | This Jquery API is used to create a skills profile. | No | Yes | Unknown | |
| Skills Map | The Skills Map API works as a plugin for applications and websites. | No | Yes | Unknown | |
| SLAC IEPM | The SLAC Internet End-to-end Performance Monitoring (IEPM) group monitors network links between... | No | Yes | Unknown | |
| Slicehost SliceManager | From their site: The SliceManager API allows for the easy and convenient manipulation of your... | No | Yes | Unknown | |
| SlickPOS | The SlickPOS API makes HTTP requests to return Point of Sale (POS) data for food outlets. | No | Yes | Unknown | |
| SlickPOS Webhooks | The SlickPOS Webhooks API is available by registering endpoints. | No | Yes | Unknown | |
| SlimSurveys | RapidEngage is solving the problem of increasing website engagement. | No | Yes | Unknown | |
| Smart Image Enhancement | Performs image upscaling by adding detail to images through multiple super-resolution algorithms | apiKey |
Yes | Unknown | |
| SmartBear AlertSite | SmartBear's AlertSite suite is a website monitoring service that will record performance metrics... | No | Yes | Unknown | |
| Smartling | The Smartling developer API enables an organization to specify exactly what content is translated,... | No | Yes | Unknown | |
| Smartproxy Public | With the Smartproxy API you will be able to access proxies and take full control over your account:... | No | Yes | Unknown | |
| SmartSurvey | The SmartSurvey API integrates surveys and questionnaires into applications. | No | Yes | Unknown | |
| SmartyStreets Download | The SmartyStreets Download API provides access to the packages that developers need to operate... | No | Yes | Unknown | |
| SnapComms Desktop Alert | SnapComms is a push notification solution for employee communication on desktop and mobile devices. | No | Yes | Unknown | |
| SnapEngage Chat | The SnapEngage Chat API integrates chat features into websites, including widgetID, email, phone,... | No | Yes | Unknown | |
| SnapEngage Logs | The SnapEngage Logs API allows to customize reports and interface SnapEngage logs data with... | No | Yes | Unknown | |
| SnapEngage Provisioning | The SnapEngage Provisioning API is available in JSON and XML formats under a REST architecture. | No | Yes | Unknown | |
| Social Solutions ETO Software | Social Solutions creates project management evaluation software for human services organizations,... | No | Yes | Unknown | |
| Socialtext | Socialtext provides enterprise social software to businesses with the goal of improving knowledge... | No | Yes | Unknown | |
| SoftLayer | From their site: Our optional server management API was developed in-house at SoftLayer... | No | Yes | Unknown | |
| Solunar | The Solunar API provides developers with programmatic access to solunar table data for a specified... | No | Yes | Unknown | |
| South African Car Registration Lookup | South African Car Registration Lookup API aids the retrieval of registration details along with... | No | Yes | Unknown | |
| Space Launch Now | The Space Launch Now API is a Restful service that allows you to view Space Stations, returns all... | No | Yes | Unknown | |
| Sparklines | Sparklines, as defined by Tufte, are intense, simple, word-sized graphics. | No | Yes | Unknown | |
| SpeechTrans | SpeechTrans is a speech-to-speech translator that offers translation software, automatic speech... | No | Yes | Unknown | |
| SpeedCurve | The SpeedCurve REST API allows developers to access and integrate the functionality of SpeedCurve... | No | Yes | Unknown | |
| Speedyrails | Speedyrails enables cloud solutions, fully managed WordPress hosting, and scalable Ruby on Rails... | No | Yes | Unknown | |
| Spinbot.net Account Info | The Spinbot.net Account Info API offers user credit information such as number of credits and... | No | Yes | Unknown | |
| Splunk | Splunk is a service that collects, indexes, and searches all types of machine data (physical,... | No | Yes | Unknown | |
| Sport List & Data | List of and resources related to sports | No | Yes | Yes | Unknown |
| Sport Places | Crowd-source sports places around the world | No | Yes | No | Unknown |
| Sport Vision | Identify sport, brands and gear in an image. Also does image sports captioning | apiKey |
Yes | Yes | Unknown |
| SpotHero Parking | The SpotHero Parking API gives developers full control and ability to customize the user experience. | No | Yes | Unknown | |
| Springpad | Springpad is a free notebook application that allows users to make notes and folders, save... | No | Yes | Unknown | |
| Spritz | Spritz is a text integration and reading application. | No | Yes | Unknown | |
| Spzapi Sri Lanka Car Registration Lookup | The Spzapi Sri Lanka Car Registration Lookup API allows developers to access and integrate the... | No | Yes | Unknown | |
| Squarespace | Squarespace offers a fully hosted software platform for creating and maintaining a website, blog,... | No | Yes | Unknown | |
| SRFax Internet Fax | SRFax is a service that allows users to utilize all aspects of fax communications in an online,... | No | Yes | Unknown | |
| Stamps.com | Stamps.com is an online postage vendor that also provides a SOAP-based API for generating USPS... | No | Yes | Unknown | |
| Staylists | The Staylists API enables developers to access hotel booking resources including reservations,... | No | Yes | Unknown | |
| Staytus | The Staytus API allows you to access and modify issues in your Staytus site, access and modify... | No | Yes | Unknown | |
| stdicon | The stdicon service hosts icons for lots of filetypes that you can use and link to. | No | Yes | Unknown | |
| Stedi | The Stedi API returns shipping and ordering data in JSON format with legacy EDI. | No | Yes | Unknown | |
| Storyblok Content Delivery | The Storyblok Content Delivery API integrates content management system features to build corporate... | No | Yes | Unknown | |
| Storyblok Management | The Storyblok Management API in REST architecture supports HTTP and returns JSON data to manage... | No | Yes | Unknown | |
| Straight-Street | This is a RESTful API for the straight-street.com symbol set. | No | Yes | Unknown | |
| Stream | Czech internet television, films, series and online videos for free | No | Yes | No | Unknown |
| streetlayer | Streetlayer offers a straightforward JSON-based REST API service built to analyse and verify... | No | Yes | Unknown | |
| strongDM | The strongDM API offers remote access resources such as role grants, accounts, gateways, and relays. | No | Yes | Unknown | |
| Subj3ct | Subj3ct is a new registry and clearinghouse service for Semantic Web subject identifiers. | No | Yes | Unknown | |
| Submitia Captcha Solver | The Submitia Captcha Solver API provides developers access to integrate the Submitia de-captcha... | No | Yes | Unknown | |
| Subreg | Subreg is a Czech Republic based domain registration services provider. | No | Yes | Unknown | |
| Sugarbox | Sugarbox provides a button enabling real-time collaboration for anything on the web. | No | Yes | Unknown | |
| Sugestio | Sugestio is a scalable and fault tolerant service that now brings the power of web personalization... | No | Yes | Unknown | |
| Sumsub | The Sumsub API provides services for all onboarding and compliance challenges, including Identity... | No | Yes | Unknown | |
| Super Dispatch Shipper | The Super Dispatch Shipper API integrates car shipping features including vehicles, carriers, and... | No | Yes | Unknown | |
| Superfeedr | The PubSubHubbub API will allow users to receive notifications from SuperFeeder when new entries in... | No | Yes | Unknown | |
| SuperHeroes | All SuperHeroes and Villains data from all universes under a single API | apiKey |
Yes | Unknown | |
| SuperSaaS | SuperSaas offers software that allows users to add online appointment scheduling to their site. | No | Yes | Unknown | |
| SuperSaas Agenda | The SuperSaas Agenda API integrates appointments of a user in XML format. | No | Yes | Unknown | |
| SuperSaas Availability | The SuperSaas Availability API allows retrieving a list of free spaces in XML format. | No | Yes | Unknown | |
| SuperSaas User Database | SuperSaas User Database API provides authentication to sign in and integrate scheduling and booking... | No | Yes | Unknown | |
| SupplyStream | SupplyStream's new web-catalog aggregates home electronics and automation industry suppliers and... | No | Yes | Unknown | |
| SurveyRock | The SurveyRock API allows developers to access a user's surveys, distributors, respondent details... | No | Yes | Unknown | |
| Swiss Post Barcode | The service generates barcoded shipping labels for parcels and other mailings within Switzerland's... | No | Yes | Unknown | |
| Symbaloo | Symbaloo is an online startpage that lets users organize and access favorite websites and web... | No | Yes | Unknown | |
| Synse Server | This Synse Server API provides a way to monitor and control physical and virtual devices. | No | Yes | Unknown | |
| Syriaca.org Geographic | This API Provides geoJSON results for all places within the gazetteer with geographic data that can... | No | Yes | Unknown | |
| Syriaca.org OAI-PMH Provider | This API uses the OAI-PMH protocol to access a description of service that will list records and... | No | Yes | Unknown | |
| Syriaca.org Search | This API performs a simple keyword search across all Syriaca.org collections. | No | Yes | Unknown | |
| SYSTRAN Dictionary | The SYSTRAN Dictionary API enables users to search for the translation of words, with additional... | No | Yes | Unknown | |
| SYSTRAN Translation | The SYSTRAN Translation API enables developers to translate texts, webpages and documents from one... | No | Yes | Unknown | |
| Tagove JavaScript | The Tagove JavaScript API integrates chat box features aiming to improve customer support and sales... | No | Yes | Unknown | |
| Tagove Web | The Tagove Web API returns data with chat features including visitor, recording, messaging, and... | No | Yes | Unknown | |
| Take Note Transcription | The Take Note Transcription API allows developers to get accurate, reliable, and confidential... | No | Yes | Unknown | |
| TaxRates.io | The Taxrates.io API delivers VAT, GST, and tax rate changes for cross-border enterprises in JSON... | No | Yes | Unknown | |
| TeamCity | The TeamCity API allows developers to make HTTP requests to the TeamCity server and get a response. | No | Yes | Unknown | |
| Teamgate | The Teamgate REST API returns CRM data in JSON format after authenticating via key. | No | Yes | Unknown | |
| TeamPlatform | TeamPlatform is a cloud-based collaboration and management portal for 3D CAD projects. | No | Yes | Unknown | |
| TeamWork Live | TeamWork Live is a web-based project management software and online collaboration tool. | No | Yes | Unknown | |
| Teamwork Projects | The Teamwork Projects API allows developers to integrate their applications with the Teamwork... | No | Yes | Unknown | |
| Teapplix ActionShip | The Teapplix Action Ship API consumes shipping automation features targeting software solutions. | No | Yes | Unknown | |
| TEC Mailing WebServices | The TEC Mailing Solutions Web Services API provide tools to assist in processing name and address... | No | Yes | Unknown | |
| TechLite Website Screenshot | This service allows you to take screenshots with this simple, fast and scalable screenshot API. | No | Yes | Unknown | |
| teelaunch | teelaunch is a print-on-demand fulfillment company that leveraged the power of Shopify to create... | No | Yes | Unknown | |
| Telldus | The Telldus API allows developers to programmatically interact with their TellStick connected gear... | No | Yes | Unknown | |
| Temando | Temando is an online portal to over 200 shipping services suitable for both businesses and... | No | Yes | Unknown | |
| Template2pdf | Template2pdf is an API enabling developers to programmatically generate PDFs out of templates that... | No | Yes | Unknown | |
| Tempo for JIRA | Tempo is time, planning, and scheduling software designed to enhance the efficiency of JIRA,... | No | Yes | Unknown | |
| Text-Processing | This natural language processing API can be used for textual analysis and sentiment extraction. | No | Yes | Unknown | |
| The New York Times Movie Reviews | The New York Times Movie Review API gives users access to movie reviews by the New York Times... | No | Yes | Unknown | |
| The New York Times TimesTags | New York Times has its own set of "controlled meta-data," which it uses to categorize its stories. | No | Yes | Unknown | |
| Thinkery | Thinkery is a fast, lightweight tool for storing notes, bookmarks, todos, and other such items. | No | Yes | Unknown | |
| Thomson Reuters Tick History (TRTH) | The Thomson Reuters Tick History (TRTH) API supports the retrieval of DataScope Select’s Tick... | No | Yes | Unknown | |
| ThumbGettys Thumbnail Generator | ThumbGettys Thumbnail Generator allows users to generate image thumbnails for videos and websites. | No | Yes | Unknown | |
| thumbnail.ws | Thumbnail.ws allows to create thumbnails and screenshots of videos and websites. | No | Yes | Unknown | |
| Ticurl | Ticurl offers an API to shorten URLs. Functions include example parameters with an API Key, URL... | No | Yes | Unknown | |
| Time and Date Astronomy | Time and Date is a company based in Norway that offers time zones, calendars, weather, the world... | No | Yes | Unknown | |
| Time and Date Daylight Saving Time (DST) Worldwide | With Daylight Saving Time Worldwide API, developers can manage dates, times and zone changes in... | No | Yes | Unknown | |
| Time and Date Holidays | Time and Date Holiday Service API displays a list of observances for over 70 countries. | No | Yes | Unknown | |
| Time and Date Places | Time and Date Places API can retrieve names of places geographically identified in a list. | No | Yes | Unknown | |
| Time Extractor | Time Extractor API allows the extraction of time and date information from text. | No | Yes | Unknown | |
| timeBuzzer | timeBuzzer allows you to track your time, team, customers, projects, and cost centers. | No | Yes | Unknown | |
| TimeCamp | TimeCamp tracks time your Team spend on each project. | No | Yes | Unknown | |
| TimeLog | TimeLog develops and sells web-based solutions within time tracking especially to project-oriented... | No | Yes | Unknown | |
| Timely | The Timely API retrieves time tracking data regarding work records, to categorize tasks, and to... | No | Yes | Unknown | |
| TimeStation | TimeStation is a cloud-based time and attendance system that runs on iPhone, iPad, and iPod Touch. | No | Yes | Unknown | |
| Timr | Timr is an online time tracking application. | No | Yes | Unknown | |
| TM Forum Address | The TM Forum Address API allows developers to access an address management system over a... | No | Yes | Unknown | |
| TM Forum Appointment | The TM Forum Appointment API allows developers to book appointments over a standardized interface. | No | Yes | Unknown | |
| TM Forum Billing Management | The TM Forum Billing Management API allows users to manage their billing accounts, bill items, and... | No | Yes | Unknown | |
| TM Forum Customer Management | The TM Forum Customer Management API allows developers to manage their customers and customer... | No | Yes | Unknown | |
| TM Forum NFV Entity Provisioning | Network services are products of one or multiple physical and virtual network functions. | No | Yes | Unknown | |
| TM Forum Performance Management | The TM Forum Performance Management API provides methods for managing the resources involved in... | No | Yes | Unknown | |
| TM Forum Privacy | The TM Forum Privacy API allows developers to handle privacy profile types, privacy profiles, and... | No | Yes | Unknown | |
| TM Forum Product Catalog Management | The TM Forum Product Catalog Management API allows developers to quickly add a partner's products... | No | Yes | Unknown | |
| TM Forum Product Inventory Management | The TM Forum Product Inventory Management API allows users to query, create, update, or remove... | No | Yes | Unknown | |
| TM Forum Product Ordering | The TM Forum Product Ordering API allows users to place product orders that include all of the... | No | Yes | Unknown | |
| TM Forum Quote | The TM Forum Quote API allows users to place customer quotes programmatically. | No | Yes | Unknown | |
| TM Forum Service Inventory | The TM Forum Service Inventory API supports the implementation of consistent mechanism for querying... | No | Yes | Unknown | |
| TM Forum Service Problem Management | The TM Forum Service Problem Management API is designed for use by service providers that require a... | No | Yes | Unknown | |
| TM Forum Service Qualification | The TM Forum Service Qualification API allows developers to provide service availability at... | No | Yes | Unknown | |
| TM Forum Trouble Ticket | The TM Forum Trouble Ticket API allows developers to access the Trouble Ticket Management Systems... | No | Yes | Unknown | |
| Todo.ly | The service provides online task management and to-do listing functions, with specification of task... | No | Yes | Unknown | |
| Todoist REST | The Todoist REST API allows developers to programmatically access most of Todoist's basic features... | No | Yes | Unknown | |
| Tolq | The Tolq API allows developers to integrate human translation into their applications. | No | Yes | Unknown | |
| Tomorrow CO2 Signal | Tomorrow is an organization that promotes the efficient use of energy resources. | No | Yes | Unknown | |
| Toodledo | From their site: An easy to use, web-based to-do list. | No | Yes | Unknown | |
| Toornament Participant | The Toornament Participant API is used to register users organized by third parties. | No | Yes | Unknown | |
| Toornament Viewer | The Toornament Viewer API allows developers to access public information about an Esports... | No | Yes | Unknown | |
| Top Bottom Center | The Top Bottom Center free API can be used to classify articles based on their political bias. | No | Yes | Unknown | |
| Topdesk | The TOPdesk API integrates service management into applications. | No | Yes | Unknown | |
| Topdesk Change Management | The Topdesk Change Management API integrates manager's authorizable actions and activity rejection... | No | Yes | Unknown | |
| Topdesk Reservations | The Topdesk Reservations API integrates reservations locations, facilities occupancies, and... | No | Yes | Unknown | |
| Topdesk SSP Look and Feel | The Topdesk SSP Look and Feel API integrates alphabetic lists of services with name and ID into... | No | Yes | Unknown | |
| Trackin | The Trackin API allows developers to access and integrate the functionality of Trackin with other... | No | Yes | Unknown | |
| TrackingMore | The TrackingMore API integrates package tracking and notifications into shipping applications. | No | Yes | Unknown | |
| TrackingMore Webhooks | The TrackingMore Webhooks API allows you to get notifications for when the tracking is updated and... | No | Yes | Unknown | |
| TrackThis | TrackThis is a package tracking service that allows users to track packages sent by major package... | No | Yes | Unknown | |
| Traffic Monitor | APItools Traffic Monitor API allows for tracking, transforming and analyzing the traffic between an... | No | Yes | Unknown | |
| TrailerAddict | Easily embed trailers from TrailerAddict | apiKey |
No | Unknown | |
| Transaxt | Transaxt is an online fundraising platform that lets users to accept donations via the internet. | No | Yes | Unknown | |
| TransIP | TransIP is a domain provider focusing primarily on the needs of power users and domain resellers. | No | Yes | Unknown | |
| TranslateMe French to English | The TranlateMe API enables applications to translate from English to French and French to English. | No | Yes | Unknown | |
| Transport for Manchester, England | TfGM transport network data | apiKey |
Yes | No | Unknown |
| Transport for Philadelphia, US | SEPTA APIs | No | No | Unknown | |
| Treez Customers | The Treez Customers API retrieves customers' data from the cannabis point of sale system. | No | Yes | Unknown | |
| Treez Ticket | The Treez Ticket API retrieves customer orders that are represented in Treez, the seed to sale... | No | Yes | Unknown | |
| Trimble Process States | The Trimble Process States API allows developers to get a list of states or countries in a... | No | Yes | Unknown | |
| Trogsoft Public Holidays | The Trogsoft Public Holidays API allows developers to access and integrate the functionality and... | No | Yes | Unknown | |
| Tronald Dump | The dumbest things Donald Trump has ever said | No | Yes | Unknown | |
| TrueConf Server | The TrueConf Server API allows developers to control TrueConf servers remotely using simple REST... | No | Yes | Unknown | |
| TrueConf Terminal Management | The TrueConf Terminal Management API allows developers to integrate video conferencing capabilities... | No | Yes | Unknown | |
| TrueNCOA | The NCOA Application Programming Interface (NCOA API) is free for developers to write code to... | No | Yes | Unknown | |
| Trulia GraphQL | This GraphQL API decouples Trulia web applications and mobile apps from backend services. | No | Yes | Unknown | |
| TrustYou Meta-Review | TrustYou provides several tools for performing semantic analysis of data, such as reviews of hotels... | No | Yes | Unknown | |
| Turkish Airlines | The Turkish Airlines API allows developers to retrieve specific flight information in their... | No | Yes | Unknown | |
| Tutorials Garden | From their site: Tutorials Garden is an ultimate place for tutorials on worlds most used tools and... | No | Yes | Unknown | |
| Tuxx Business Days | The Tuxx Business Days API retrieves data to check whether a given date is a workable day. | No | Yes | Unknown | |
| Tuxx Country codes - ISO 3166 | The Tuxx Country codes - ISO 3166 API provides a list given a country code (either in ISO ALPHA-2,... | No | Yes | Unknown | |
| Tuxx EU Country | The Tuxx EU Country API checks whether a given country is a country in the European Union. | No | Yes | Unknown | |
| Tuxx Holidays | The Tuxx Holidays API finds days of celebration and school holidays in over 20 countries, providing... | No | Yes | Unknown | |
| Tuxx IBAN validate | The Tuxx IBAN validate API retrieves standard data for bank account numbers in Europe and a few... | No | Yes | Unknown | |
| TwoDNS | TwoDNS provides Domain Name System services. | No | Yes | Unknown | |
| TwoJS | The aim of the Two.js API is to provide developers with a two-dimensional drawing API geared... | No | Yes | Unknown | |
| Typeform Data | The TypeForm Data API allows developers will consult with the data that is available on their... | No | Yes | Unknown | |
| Typekit | Typekit is a subscription-based font library. | No | Yes | Unknown | |
| UCAR People | The University Corporation for Atmospheric Research (UCAR) is an organization focused on the study... | No | Yes | Unknown | |
| UCLA.in | Based on Bit.ly's API, UCLA.in allows users to shorten URLs "in" the allowed UCLA domains. UCLA. | No | Yes | Unknown | |
| uCoz | The service provides hosted websites with simple configuration and content management (CMS) tools... | No | Yes | Unknown | |
| Uinames | The Uinames API returns JSONP data over HTTPS requests with name, surname, gender, and region. | No | Yes | Unknown | |
| UK Coronavirus Data | The UK Coronavirus Data API serves as a data crawler to get COVID-19 figures from The National... | No | Yes | Unknown | |
| Ukraine Car registration | This API lets you determine the make, model, colour, fuel type and age of a vehicle registered in... | No | Yes | Unknown | |
| UltiPro | Ultimate software is a provider of HR management solutions. | No | Yes | Unknown | |
| UltraHook | UltraHook is a free webhook service. UltraHook allows users to create and manage webhooks over... | No | Yes | Unknown | |
| Ulvis Free URL Shortener | The Ulvis URL Shortener API in REST architecture returns JSON and XML data with shortener variables. | No | Yes | Unknown | |
| Unbabel | The Unbabel REST API allows developers to access and integrate the functionality of Unbabel with... | No | Yes | Unknown | |
| UniCourt Webhooks | The UniCourt Webhooks API enables users to receive notifications concerning events in the UniCourt... | No | Yes | Unknown | |
| Unofficial Astrology.com Horoscope | This is an unoffical API for daily horoscopes from Astrology.com | No | Yes | Unknown | |
| Unofficial TrackingMore | All-in-one global package tracking tool. Support track and trace international 472 couriers | No | Yes | Unknown | |
| UpCloud | UpCloud is a european based Infrastructure-as-a-service company that provides server deployment and... | No | Yes | Unknown | |
| updown.io | Updown is a webservice that checks a website’s status by periodically sending a HTTP HEAD request... | No | Yes | Unknown | |
| Uploadcare CDN | The Uploadcare CDN API retrieves content delivery network features including file upload, file... | No | Yes | Unknown | |
| Uploadify | The Uploadify API integrates uploads into websites, via Flash and HTML5. It can parse PHP, ASP. | No | Yes | Unknown | |
| UPS Paperless Document | The Paperless Document API is designed to expedite UPS customs processing. | No | Yes | Unknown | |
| UPS Shipping | The UPS Shipping API provides UPS shipping functionalities to be integrated into websites and... | No | Yes | Unknown | |
| Upscope Secure Cobrowsing | The Upscope Secure Cobrowsing API gives you the ability to customize and embed cobrowsing into your... | No | Yes | Unknown | |
| Uptime | The Uptime REST service is a API interface to ensure optimal ease of integration and common web API... | No | Yes | Unknown | |
| Uptrends | The service provides monitoring of websites and other online resources for continuous uptime, with... | No | Yes | Unknown | |
| Upwave | The Upwave API allows developers to integrate Upwave's visual collaboration platform into their... | No | Yes | Unknown | |
| Urban Jungle Partners | Urban Jungle is a UK-based provider of home content insurance services for urban dwellers and... | No | Yes | Unknown | |
| Usabilla | The Usabilla API allows developers to integrate their applications with the Usabilla data and... | No | Yes | Unknown | |
| UserVoice | UserVoice is a service that provides companies and organizations with feedback forums and help... | No | Yes | Unknown | |
| UserVoice HelpDesk | The UserVoice HelpDesk API provides administrator functionalities to build client apps and... | No | Yes | Unknown | |
| USPS City/State Lookup Web Tool | The USPS City/State Lookup Web Tool API allows developers to get the city and state corresponding... | No | Yes | Unknown | |
| USPS Customs Forms (CP72V3) | The USPS Customs Forms (CP72V3) API allows developers to fill out PS Form 2976-A, Customs... | No | Yes | Unknown | |
| USPS eVS Priority Mail Express International Label | This API lets customers generate eVS Priority Mail Express International labels given the weight... | No | Yes | Unknown | |
| USPS Hold For Pickup Express Mail Label | The USPS Hold For Pickup Express Mail Label API allows developers to generate Express Mail labels... | No | Yes | Unknown | |
| USPS Hold For Pickup First Class Mail Label | The USPS Hold For Pickup First Class Mail Label API allows developers to generate First Class Mail... | No | Yes | Unknown | |
| USPS Hold For Pickup Priority Mail Label | The USPS Hold For Pickup Priority Mail Label API allows developers to generate Priority Mail labels... | No | Yes | Unknown | |
| USPS Package Pickup Cancel Web Tools | The USPS Package Pickup Cancel Web Tools API allows developers to cancel a scheduled package pickup. | No | Yes | Unknown | |
| USPS Package Pickup Change Web Tools | The USPS Package Pickup Change Web Tools API allows developers to change certain data in the... | No | Yes | Unknown | |
| USPS Package Pickup Inquiry Web Tools | The USPS Package Pickup Inquiry Web Tools API allows developers to retrieve the data contained in... | No | Yes | Unknown | |
| USPS Package Pickup Schedule Web Tools | The USPS Package Pickup Schedule Web Tools API allows developers to schedule a package pickup. | No | Yes | Unknown | |
| USPS Priority Mail International Label | The USPS Priority Mail International Label API allows customers to generate Priority Mail... | No | Yes | Unknown | |
| USPS SCAN | This API allows integrators to consolidate multiple domestic and international labels and custom... | No | Yes | Unknown | |
| USPS ZIP Code Lookup Web Tool | The USPS ZIP Code Lookup Web Tool API allows developers to get the ZIP Code and ZIP Code + 4... | No | Yes | Unknown | |
| USPTO BDSS | The USPTO BDSS API allows developers to discover, search, and download patent and trademark data in... | No | Yes | Unknown | |
| USPTO OCE - Patent Examination Event Codes | The USPTO OCE - Patent Examination Event Codes API gives developers programmatic access to short... | No | Yes | Unknown | |
| USPTO OCE - Patent Litigation Cases | The USPTO OCE - Patent Litigation Cases API provides access to detailed data on 74,623 unique... | No | Yes | Unknown | |
| USPTO Patent Assignment Search (Beta) | The USPTO Patent Assignment Search (Beta) API allows developers to retrieve patent assignment... | No | Yes | Unknown | |
| USPTO PatentsView | The USPTO PatentsView API allows developers to explore US intellectual property to discover people... | No | Yes | Unknown | |
| USPTO PTAB (Beta) | The USPTO PTAB (Beta) API allows developers to browse Patent Trial and Appeal Board (PTAB) public... | No | Yes | Unknown | |
| USPTO Unified Event | The USPTO Unified Event API allows developers to discover public facing events that are sponsored... | No | Yes | Unknown | |
| Vacasa | Vacasa enables vacation rental booking with applications. | No | Yes | Unknown | |
| Vagrant Cloud | Vagrant offers solutions for development teams to create new environments, manage versioning, and... | No | Yes | Unknown | |
| ValEx | The service provides estimates of property value for real estate in Australia. | No | Yes | Unknown | |
| Validator.nu | The service validates html code against a range of standards specified in the request. | No | Yes | Unknown | |
| Vapour | The service validates RDF/XML found at a URL specified in the request and confirms that the data is... | No | Yes | Unknown | |
| Vedic Rishi Astro | Vedic Rishi is a company based in India that offers mantras, horoscopes, and astrology, and... | No | Yes | Unknown | |
| Vegan Guide | Vegan Guide is an interactive guide to vegan-friendly restaurants, cafes, pubs, and other stores. | No | Yes | Unknown | |
| Veriff Webhooks | This Webhooks API supports listening for decision notifications from Veriff. | No | Yes | Unknown | |
| Verisign DomainCountdown | DomainCountdown is a web application from Verisign Inc designed to help customers to evaluate... | No | Yes | Unknown | |
| VERISIGN DomainScore | DomainScore is a free tool from Verisign Inc designed to complement domain pre-registration... | No | Yes | Unknown | |
| VeriSign NameStudio | The VeriSign NameStudio API is a domain name search service that allows you to integrate a search... | No | Yes | Unknown | |
| Vertafore | The Vertafore API allows customers and partners to integrate Vertafore's cloud-based insurance... | No | Yes | Unknown | |
| Viettel AI REST Speech to Text | The Viettel AI REST Speech to Text API in REST architecture returns JSON formats with speech... | No | Yes | Unknown | |
| VinFreeCheck Vin Decoding | The VinFreeCheck Vin Decoding API allows developers to decode VIN numbers as well as get accurate... | No | Yes | Unknown | |
| VinSolutions | The VinSolutions API retrieves car sales data including vehicle catalog, digital showroom, call... | No | Yes | Unknown | |
| VIP Auto Shipping | VIP Auto Shipping provides car service transport across the entire US. | No | Yes | Unknown | |
| Virtuoso Sponger Proxy | The OpenLink Virtuoso Sponger Proxy turns a web resource into RDF, which is useful in Ajax and... | No | Yes | Unknown | |
| Vision Helpdesk | The Vision Helpdesk API gives users open access to several functions of Vision Helpdesk. | No | Yes | Unknown | |
| VisionProject | VisionProject is a web-based project management service that is composed of several modules. | No | Yes | Unknown | |
| Visual Composer | The Visual Composer API allows developing custom elements to build a website. | No | Yes | Unknown | |
| Vizdum Flexible Push | The Push REST API allows developers to push information into Vizdum's business analytics dashboards... | No | Yes | Unknown | |
| Vonage Nexmo Pricing | The Vonage Nexmo Pricing API allows developers to retrieve pricing for Nexmo services. | No | Yes | Unknown | |
| Voog | The Voog API allows users to integrate services into a web application to manage a website's... | No | Yes | Unknown | |
| Vtiger | The Vtiger CRM API is a REST webservice that is exposed over HTTP(s) and allows you to access data... | No | Yes | Unknown | |
| VURL URL Shortener | The VURL API can be integrated with applications to automate URL shortener capabilities. | No | Yes | Unknown | |
| W3C ActivityPub | The W3C ActivityPub API is a protocol that provides an API for creating, updating, and deleting... | No | Yes | Unknown | |
| W3C Badging | The W3C Badging API describes the process to set an application-wide badge without showing a more... | No | Yes | Unknown | |
| W3C Browser Extensions | The W3C Browser Extensions API allows you to create interoperable extensions for browsers that... | No | Yes | Unknown | |
| W3C Contact Picker | The W3C Contact Picker API is a web standard that provides access to services for Contact pickers. | No | Yes | Unknown | |
| W3C Contacts Manager | The W3C Contacts Manager API specification defines an API that provides an interface for managing a... | No | Yes | Unknown | |
| W3C CSS Properties and Values | The W3C CSS Properties and Values API document defines an API for registering new CSS properties. | No | Yes | Unknown | |
| W3C CSS Validator | The W3C CSS Validation Service is a free software created by the W3C to help Web designers and Web... | No | Yes | Unknown | |
| W3C High Resolution Time | The W3C High Resolution Time API is a specification that defines an API for providing the current... | No | Yes | Unknown | |
| W3C Identifiers for WebRTC's Statistics | The W3C Identifiers for WebRTC's Statistics API defines a set of JavaScript APIs that allow... | No | Yes | Unknown | |
| W3C Navigation Timing | The W3C Navigation Timing API is a specification that defines an interface for accessing complete... | No | Yes | Unknown | |
| W3C Page Lifecycle | The Page Lifecycle API is a W3C Web specification that supports a browser's ability to manage the... | No | Yes | Unknown | |
| W3C Presentation | The W3C Presentation API is a specification that defines an API for allowing web content to access... | No | Yes | Unknown | |
| W3C Resource Timing | The W3C Resource Timing API is a specification for an interface that allows web applications to... | No | Yes | Unknown | |
| W3C Screen Orientation | The W3C screen orientation API integrates the changing reading state of a device as landscape or... | No | Yes | Unknown | |
| W3C Task Scheduler | The W3C Task Scheduler API document specifies an API that allows developers to schedule tasks to... | No | Yes | Unknown | |
| W3C Time Framing | The W3C Time Framing API allows for specification for defined interfaces to assist web developers... | No | Yes | Unknown | |
| W3C User Timing | The W3C User Timing API defines an interface for accessing high precision timestamps that help... | No | Yes | Unknown | |
| W3C Web Animations | The W3C Web Animations API provides a model definition for implementing Web animation and... | No | Yes | Unknown | |
| W3C Web Notifications | The W3C Web Notifications API is a specification that defines an API for handling end-user... | No | Yes | Unknown | |
| W3C Webmention | The W3C Webmention API is a specification for an API that notifies a URL when the user mentions it... | No | Yes | Unknown | |
| W3C XHTML Validator | The Markup Validator is a free service by W3C that helps check the validity of Web documents. | No | Yes | Unknown | |
| Walgreens Clinic Appointment Scheduler | The Walgreens Healthcare Clinic Appointment Scheduler API offers users the ability to do just that:... | No | Yes | Unknown | |
| Watchful REST | Watchful.li allows users to keep Joomla websites safe with regular updates, maintenance, and... | No | Yes | Unknown | |
| WatchingWords Transcription | The WatchingWord REST API lets you build transcription right into your company's workflow. | No | Yes | Unknown | |
| WatchMouse | The WatchMouse service checks the behavior and availability of websites. | No | Yes | Unknown | |
| Watson | Watson deploys APIs to allow developers to programmatically access the semantic content (semantic... | No | Yes | Unknown | |
| We Vote | The We Vote API retrieves a voter's ballot, candidates, address, verification, phone number, social... | No | Yes | Unknown | |
| Web Africa | Web Africa is a privately owned internet service provider that supplies local and international... | No | Yes | Unknown | |
| Web Series Quotes Generator | API generates various Web Series Quote Images | No | Yes | Yes | Unknown |
| WebAIM WAVE | WAVE is a free Web Accessibility Evaluation Tool from WebAIM. | No | Yes | Unknown | |
| WebGL | WebGL is a web standard for APIs that allow users to work with low-level 3D graphics in a browser... | No | Yes | Unknown | |
| WebhookInbox | The WebhookInbox API can be used to monitor and debug webhooks. | No | Yes | Unknown | |
| WebKnox Proxies | Begun as a research project from the Royal Melbourne Institute of Technology and the University of... | No | Yes | Unknown | |
| Webmention.io | Webmention.io is an API designed to keep track of webmentions and pingbacks, both of which are... | No | Yes | Unknown | |
| WebSanitize | The WebSanitize REST API allows developers to access and integrate the functionality of... | No | Yes | Unknown | |
| WebsiteTranslation.net | WebsiteTranslation.net is a service that allows whole websites to be translated from one language... | No | Yes | Unknown | |
| WebSpellChecker | WebSpellChecker is an application that allows website owners and managers to provide spell checking... | No | Yes | Unknown | |
| WebThumb | From their site: Web Page Thumbnails with API support. | No | Yes | Unknown | |
| Wellynews | The Wellynews API provides RSS and JSON interfaces to a collection of local news items aggregated... | No | Yes | Unknown | |
| WestFax | The service accepts content input and generates fax messages either individually to specified... | No | Yes | Unknown | |
| WhatIsMyIP.com | WhatIsMyIP.com (WIMI) is a simple web service and HTTP API that can be integrated into custom web... | No | Yes | Unknown | |
| WHATWG Notifications | The WHATWG Notifications standard defines an API that allows developers to display notifications to... | No | Yes | Unknown | |
| Where's it up? | Where's it up? provides a network of servers that allows users to make sure that their websites are... | No | Yes | Unknown | |
| Whitepages Pro Find Person | The WhitePages Find Person API identifies, enhances, and updates records from a data attribute. | No | Yes | Unknown | |
| Whitepages Pro Identity Check | The WhitePages Identity Check API returns data to verify customer identities, screen applications... | No | Yes | Unknown | |
| Whitepages Pro Phone Reputation | The WhitePages Phone Reputation API blocks and filters spam. | No | Yes | Unknown | |
| Whitepages Pro Reverse Phone | The WhitePages Pro Reverse Phone API returns data to obtain an owner’s current name, address,... | No | Yes | Unknown | |
| WHMCS | The WHMCS API provides developers with an interface to access and perform actions in WHMCS both... | No | Yes | Unknown | |
| Who Hosts This | The Who Hosts This API offers JSON formatted data about a website's hosting provider. | No | Yes | Unknown | |
| WhoAPI | WhoAPI is a service for mass domain lookups that provides details about each domain to the user. | No | Yes | Unknown | |
| WhoAPI Domain Availability | The WhoAPI Domain Availability API allows you to check domain availability for registration. | No | Yes | Unknown | |
| WhoAPI Domain Score | The WhoAPI Domains Score API allows you to get domain reputation scores that rank certain domains... | No | Yes | Unknown | |
| WhoAPI Screenshot | The WhoAPI Screenshot API is used for taking website screenshots. | No | Yes | Unknown | |
| whois.net.pk | The service based in Pakistan provides whois search for domain names registered under the . | No | Yes | Unknown | |
| WhoisJson | The Whois API in JSON and XML formats aims to simplify complex data forms, accessing public... | No | Yes | Unknown | |
| WhoisXML Domain Reputation | The Whois XML Domain Reputation API allows users to assess a domain's or IP addresses' reputation... | No | Yes | Unknown | |
| WikiArt | WikiArt provides a read-only API to obtain information about artist and paintings. | No | Yes | Unknown | |
| Wikidot | Wikidot is a web application service where people can create collaborative web spaces that look... | No | Yes | Unknown | |
| Wikispaces | The Wikispaces API can be used for the advanced management of Wikispace wikis. | No | Yes | Unknown | |
| WikiTree | The WikiTree API retrieves relatives, ancestors, person, and DNA profiles data from a genealogy... | No | Yes | Unknown | |
| Wind Serve DNS Check | The Wind Serve DNS Check API is a DNS record checking platform that can be integrated to existing... | No | Yes | Unknown | |
| Windows Azure Billing | The Windows Azure Billing API, that predicts and manages billing services, is available for preview. | No | Yes | Unknown | |
| Windows Live Contacts | The Windows Live Contacts API is an HTTP-based service that enables developers to programmatically... | No | Yes | Unknown | |
| Windows Live Gadgets | Windows Live Gadgets API | No | Yes | Unknown | |
| Windows Live Presence | From their site: The Windows Live Presence API is an HTTP-based API that returns a Windows Live... | No | Yes | Unknown | |
| Windows Sidebar Gadgets | For Windows Vista sidebar. | No | Yes | Unknown | |
| WizeHive | WizeHive is a collaboration platform that allows users and groups to share and collaborate on... | No | Yes | Unknown | |
| Wobaka | Wobaka is a non-restricted Customer Relationship Management API that functions as a task manager... | No | Yes | Unknown | |
| Wootric | The Wootric API offers a Net Promoter Score platform to integrate with existing applications. | No | Yes | Unknown | |
| WordAi | WordAi uses JSON and plaintext return to show spintax, or article spinning, a technique that aims... | No | Yes | Unknown | |
| Wordbee System | Wordbee is a provider of translation software solutions for digital content. | No | Yes | Unknown | |
| Wordbee User | Wordbee is a provider of translation software solutions for digital content. | No | Yes | Unknown | |
| Wordbee Webhooks | Wordbee is a provider of translation software solutions for digital content. | No | Yes | Unknown | |
| Workflow | The Workflow REST API allows developers to access and integrate the functionality of Workflow with... | No | Yes | Unknown | |
| WorkflowMax | WorkflowMax is a flexible web-based program for business Job and Invoice management. | No | Yes | Unknown | |
| Working Days | The Working Days API returns the number of days, working days, weekend days, and list of public... | No | Yes | Unknown | |
| Workzone | The Workzone API integrates project management features, aiming to ease dashboard workflow, to do... | No | Yes | Unknown | |
| World Tides | Use the World Tides API to retrieve tidal information for anywhere in the world. | No | Yes | Unknown | |
| WorldwideDNS | WorldwideDNS provides comprehensive DNS services for thousands of businesses, developers, and... | No | Yes | Unknown | |
| Wormly | Wormly is an uptime and server monitoring service. | No | Yes | Unknown | |
| WP REST | WP REST API allows developers to access their Wordpress site's data in a RESTful way. | No | Yes | Unknown | |
| WPAPI.org | WPapi is an API that gives you access to up-to-date download stats for your WordPress-hosted... | No | Yes | Unknown | |
| Writeapp.me | Writeapp is a text edit platform that allows users to create, organize, and publish text. | No | Yes | Unknown | |
| X.nu | "X.NU allows developers to interact with the website via an Application Programming Interface (API). | No | Yes | Unknown | |
| Xero Accounting | The Xero Accounting API is a RESTful web service that uses the OAuth1 protocol to authenticate 3rd... | No | Yes | Unknown | |
| Xero HQ | Xero is a provider of cloud-based accounting software. | No | Yes | Unknown | |
| Xero Payroll UK | This UK Payroll API is currently in beta, you will need to contact Xero to gain access. | No | Yes | Unknown | |
| Xero Projects | The Projects API is currently in closed beta, contact api@xero. | No | Yes | Unknown | |
| Xero Signup | The Xero Signup API is a RESTful web service that allows you to trigger new Xero signups from your... | No | Yes | Unknown | |
| Xero Webhooks | The Xero Webhooks API allows you to subscribe to events in Xero that are currently limited to... | No | Yes | Unknown | |
| XLS Parser | The XLS Parser is a REST API that can read and parse large xls files and save data to a MySQL... | No | Yes | Unknown | |
| Yahoo Site Explorer | From their site: Yahoo! Site Explorer APIs provide access to information about your site from the... | No | Yes | Unknown | |
| Yahoo YUI | YUI (Yahoo! User Interface) is a free, open source JavaScript and CSS framework that is also hosted... | No | Yes | Unknown | |
| Yandex Browser | The Yandex Browser API allows developers to customize the appearance of a website or the features... | No | Yes | Unknown | |
| Yandex Dictionary | Yandex, a European internet company, provides this dictionary API. | No | Yes | Unknown | |
| Yandex Webmaster | Yandex is a major Russia-based internet company and search engine with the stated mission of... | No | Yes | Unknown | |
| Yaware.TimeTracker | The Yaware.TimeTracker API tracks team and individual work time automatically, without starting or... | No | Yes | Unknown | |
| YellowBot Location | This API lets users search for businesses within the US, display business information, get ratings... | No | Yes | Unknown | |
| Yes-co | Yes-co is a real estate project management system for brokers and agents. | No | Yes | Unknown | |
| You've Got Leads | You’ve Got Leads (YGL) is a customer relationship management (CRM) solution designed to help senior... | No | Yes | Unknown | |
| Zammad | The Zammad API provides programmatic access to Zammad's web-based, open-source customer support and... | No | Yes | Unknown | |
| Zapier Partner | The Zapier Partner API is available by request, allowing flexibility and control over user... | No | Yes | Unknown | |
| ZebraPlan | ZebraPlan offers agile project management tools for software development companies. | No | Yes | Unknown | |
| Zendesk chat | The Zendesk Javascript API returns JSON data for chats, sessions, read and unread messages,... | No | Yes | Unknown | |
| Zendesk Support | The Zendesk Support API retrieves support data for customer service platforms. | No | Yes | Unknown | |
| Zenscrape | The Zenscrape API extracts data with HTML markup, standard and premium proxies, IP rotation, and... | No | Yes | Unknown | |
| Zeplin | The Zeplin API in REST architecture with optional Webhooks implements a connected space for... | No | Yes | Unknown | |
| ZestyIO Accounts | The Zesty.io Accounts API provides methods to manage accounts, users, emails, companies,... | No | Yes | Unknown | |
| ZestyIO Instances | The Instances API is a programmatic HTTP Rest API to control all aspects of the Zesty. | No | Yes | Unknown | |
| ZestyIO Webhooks | This Webhooks API is access to Zesty.io API notifications via the Zesty.io content manager system. | No | Yes | Unknown | |
| Zillow Current Rates | The Zillow Current Rates API retrieves current mortgage rates. | No | Yes | Unknown | |
| Zillow Home Valuation GetChart | The GetChart API allows developers to generate a URL for an image file that displays historical... | No | Yes | Unknown | |
| Zillow Home Valuation GetComps | The GetComps API allows for access to Zillow's database of recent sales for a specified property... | No | Yes | Unknown | |
| Zillow Home Valuation GetZestimate | The Zillow GetZestimate API allows developers to access Zillow's home estimates. | No | Yes | Unknown | |
| Zillow Lender Contact Notification | The Zillow Lender Contact Notification API uses JSON formats and HTTP status codes to return... | No | Yes | Unknown | |
| Zillow Lender Reviews | The Zillow Lender Reviews API retrieves the reviews for a specific lender. | No | Yes | Unknown | |
| Zillow Mortgage CalculateMonthlyPaymentsAdvanced | The CalculateMonthlyPaymentsAdvanced API offers developers access to the estimated monthly payment,... | No | Yes | Unknown | |
| Zillow Mortgage GetMonthlyPayments | The GetMonthlyPayments API aims to return the estimated monthly payment that includes principal and... | No | Yes | Unknown | |
| Zillow Neighborhood GetDemographics | The GetDemographics API aims to return a set of market, affordability, real estate, and demographic... | No | Yes | Unknown | |
| Zillow Property GetDeepComps | The GetDeepComps API aims to return a list of comparable recent sales for a specified property. | No | Yes | Unknown | |
| Zillow Property GetDeepSearch-Results | The GetDeepSearchResults API aims to find a property for a specified address. | No | Yes | Unknown | |
| Zip API US | A free way to lookup city and state based on zip code. | No | Yes | Unknown | |
| ZipBooks | ZipBooks provides small businesses with free invoicing software. | No | Yes | Unknown | |
| Zoho Sales IQ | The Zoho Sales IQ API facilitates the customization of chat widgets for web applications. | No | Yes | Unknown | |
| Zoho Subscriptions | Zoho Subscriptions is an online billing and subscription management application that provides... | No | Yes | Unknown | |
| Zonos | The Zonos API provides localization and checkout data to integrate into duty and tax services. | No | Yes | Unknown | |
| Zulip | RESTful API for Zulip, an open source group chat platform alternative to Slack, meaning it could be... | No | Yes | Unknown | |
| Zweena | The Zweena API offers health data from any medical provider and integrated with existing health... | No | Yes | Unknown |