Agent402
@MikeyPetrillo
Open-source MCP server with ~1,100 deterministic tools — web search, headless Chromium, PDFs, OCR, images, ~1,040 CPU utilities. Free to self-host or pay per call via x402 (USDC on Base).
Overview
What is Agent402?
Agent402 is an open-source, self-hostable MCP server that provides an index over the x402 ecosystem (Find, Route, Leaderboard) plus a catalog of ~1,100 deterministic tools for AI agents. It gives developers a single integration for discovering, routing, and calling tools across multiple sellers, with no LLM in the serving path.
How to use Agent402?
You can use Agent402 by adding its hosted connector to Claude (claude.ai → Settings → Connectors → Add custom connector with URL https://agent402.tools/mcp), or by running the MCP server locally with npx -y agent402-mcp, or by cloning the repository and starting it with FREE_MODE=true npm start. A one-click deploy to Railway is also available.
Key features of Agent402
- ~1,100 deterministic tools (browser, search, PDFs, images, OCR, geo, live data, crypto, ~1,040 pure-CPU utilities)
- Open-source and self-hostable; no API keys or signup required
- Optional x402 protocol for per-call USDC payments (opt-in)
- x402 Index: Find, Smart Order Router, and on-chain Leaderboard across sellers
- Health-aware routing with hourly snapshot of seller data
- Framework adapters for OpenAI, Anthropic, Vercel AI SDK, LangChain, LlamaIndex, and Strands
Use cases of Agent402
- Give your AI agent ~1,100 ready-to-use web tools from one server
- Connect to Claude, ChatGPT, or any MCP client
- Add your own tools in a few lines of code
- Discover and route to the best tools across the x402 ecosystem
- Self-host and optionally monetize via x402 per-call payments
FAQ from Agent402
What makes Agent402 different?
Agent402 is open-source and self-hostable, and a single integration gives three free primitives over the whole x402 ecosystem: Find (task-to-tool routing), Route (Smart Order Router across sellers), and Leaderboard (on-chain seller ranking). It also includes ~1,100 deterministic tools.
Do I need an API key or signup to use Agent402?
No. By default everything runs free; no wallet is required in free mode. You can self-host without any API keys.
Can I charge for tool calls?
Yes, optionally. The server can charge per call over the x402 protocol (USDC on Base). That part is opt-in; by default everything runs free.
What framework adapters are available?
Agent402 provides drop-in packages for OpenAI, Anthropic, Vercel AI SDK, LangChain, LlamaIndex, and Strands. These turn the catalog into native tool objects with payment handled underneath.
How does the Router work?
The Smart Order Router (POST /api/route) ranks tools across sellers by match score, then health, then price. Sellers whose last few crawls errored are excluded; new sellers get the benefit of the doubt. The leaderboard is an on-chain snapshot of settled USDC volume.
