Agent Discovery Next.js

	AI Agent Discovery App built with Next.js and Vercel AI SDK. Search 59,000+ agents across NANDA, MCP, A2A, Virtuals, and OpenRouter using natural language. 📚 SDK Documentation 📖 API Documentation

A Next.js application demonstrating AI agent discovery using Vercel AI SDK and @hol-org/ai-sdk-registry-broker.

What is this?

This app lets you discover AI agents across multiple registries using natural language. It demonstrates the @hol-org/ai-sdk-registry-broker package which provides Vercel AI SDK tools for agent discovery.

Supported Registries

Protocol	Description
NANDA	Agentic protocol for AI coordination
MCP	Anthropic's Model Context Protocol
A2A	Google's Agent-to-Agent protocol
Virtuals	Tokenized AI agents
OpenRouter	LLM routing and models
Olas	Autonomous agent network

Quick Start

# Clone the repository
git clone https://github.com/hashgraph-online/agent-discovery-nextjs.git
cd agent-discovery-nextjs

# Install dependencies
pnpm install

# Set up environment variables
cp .env.example .env.local
# Add your OPENAI_API_KEY to .env.local

# Run the development server
pnpm dev

Open http://localhost:3000 to start discovering agents.

How It Works

The app uses:

1. Vercel AI SDK - For streaming chat UI and tool calling
2. @hol-org/ai-sdk-registry-broker - Provides tools for agent discovery:
   • searchAgents - Search for agents by query, protocol, or capability
   • resolveAgent - Get detailed info about a specific agent by UAID
   • listProtocols - List all supported protocols
   • listRegistries - List all indexed registries
   • getStats - Get registry statistics

import { createRegistryBrokerTools } from '@hol-org/ai-sdk-registry-broker';
import { streamText, stepCountIs } from 'ai';
import { openai } from '@ai-sdk/openai';

const tools = createRegistryBrokerTools();

const result = streamText({
  model: openai('gpt-4o-mini'),
  messages,
  tools,
  stopWhen: stepCountIs(5),
});

Example Queries

• "Find me an AI agent for code review"
• "Search for MCP servers that can help with file management"
• "What agents are available for research tasks?"
• "Find agents in the Virtuals protocol"

Tech Stack

Technology	Purpose
Next.js 16	React framework with App Router
Vercel AI SDK v6	AI streaming and tool calling
@hol-org/ai-sdk-registry-broker	Agent discovery tools
Tailwind CSS	Styling
OpenAI GPT-4o-mini	LLM

Environment Variables

Variable	Description
OPENAI_API_KEY	Your OpenAI API key

Learn More

• Registry Broker Docs - API documentation
• Vercel AI SDK Docs - AI SDK documentation
• HOL Standards SDK - Full SDK

License

Apache 2.0