chain-data

https://chain-data-mcp.vercel.app/mcp

● healthy model-context-protocol-mcp

Live multi-chain on-chain data in one call for AI agents: wallet portfolio (native + ERC-20 + USD value), token/contract info, live gas, token prices across Ethereum, Base, Polygon, Arbitrum, Optimism. No API key.

How to call

cURL · x402-fetch / x402-axios will auto-handle 402

curl -X POST https://chain-data-mcp.vercel.app/mcp

MCP endpoint

https://chain-data-mcp.vercel.app/mcp

/.well-known/x402.json

https://chain-data-mcp.vercel.app/.well-known/x402