MCP.so
Sign In

Agent402

@MikeyPetrillo

Repository

About Agent402

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).

#mcp#x402#agents#web-search#headless-chromium#pdf#ocr#payments#usdc#base#utilities#self-hostable#open-source

Basic information

Category

Search

Transports

stdio

Publisher

MikeyPetrillo

Submitted by

Mike Petrillo

Config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "agent402": {
      "url": "https://agent402.tools/mcp"
    }
  }
}

Tools

4

Search Agent402's 1123 pay-per-call web tools (encoding, crypto, text, time, math, validation, unit conversions, network, browser, PDF, search, memory). 1076 pure-CPU tools run free right here; the rest need a USDC wallet. Returns slugs + input schemas for call_tool.

Describe a task in plain language and get the best-matching Agent402 tool(s) ready to call — slug, price, input schema, and an example — so you skip searching/exploring. Then run call_tool with the chosen slug + params.

Run an Agent402 tool by slug (find slugs with search_tools). The 1076 pure-CPU tools execute free on this hosted connector (rate-limited). Wallet-only tools (live search, browser rendering, PDFs, durable memory) return instructions for paid access instead.

What this connector is: the free tier of agent402.tools, what's free vs wallet-only, and how paid access works (x402, USDC on Base, proof-of-work).

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.

Comments

More Search MCP servers

duckduckgo-search MCP Server

zhsama

84

Naver Search MCP Server

isnow890

MCP server for Naver Search API integration. Provides comprehensive search capabilities across Naver services (web, news, blog, shopping, etc) and data trend analysis tools via DataLab API.

77

Baidu AI Search

baidubce

appbuilder-sdk, 千帆AppBuilder-SDK帮助开发者灵活、快速的搭建AI原生应用

583

DuckDuckGo Search MCP Server

nickclyde

A Model Context Protocol (MCP) server that provides web search capabilities through DuckDuckGo, with additional features for content fetching and parsing.

1.3K

Google Search MCP Server

mixelpixx

MCP Server built for use with Claude Code, Claude Desktop, VS Code, Cline - enable google search and ability to follow links and research websites

249