Unauthenticated MCP server exposing read-only chain-data tools and pay-per-call Web3/market/travel tools settled via x402 — built on the official MCP SDK and NestJS.
View on GitHub ↗A free, public MCP (Model Context Protocol) server for Web3 data. Point any MCP client — Claude Desktop, Cursor, your own agent — at it and it can read live chain data (block height, gas, transaction status, ERC-20 info, spot prices) and, for a handful of pay-per-call tools, look up market data, wallets/tokens/ENS, and travel search.
No API key, no account, no signup. Free tools are open to anyone; paid tools are settled directly from the caller's own wallet via the x402 payment protocol — this service never holds or signs funds on your behalf.
Built on the official @modelcontextprotocol/sdk and NestJS 11.
- Quick start - Use it from Claude Desktop / Cursor - Available tools - Calling tools directly (curl) - Configuration - How it works - Database - Security - Scripts - Contributing
- Health check: GET http://localhost:3011/health - MCP endpoint: POST http://localhost:3011/mcp - API docs (health only): http://localhost:3011/api/docs
Database migrations run automatically on boot — no separate CLI step needed.
Add this to your MCP client's config (e.g. claudedesktopconfig.json or Cursor's mcp.json):
Restart the client and the tools below become available to it — no further setup.
Tool Paid? What it does --------------------------- network.blocknumber No Current EVM block number or Solana slot. Query one chain or all at once. network.transactionstatus No Look up a transaction/signature by hash on EVM or Solana. network.gasinfo No Current gas price + EIP-1559 fee hints for an EVM chain. network.tokeninfo No ERC-20 name / symbol / decimals / total supply. network.tokenpr
From the project README.
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