Chainlist

Connects Claude to the EVM chain registry via three straightforward tools: list_chains for browsing and filtering, get_chain for lookup by chainId or shortName like "eth" or "matic", and find_rpc for pulling RPC endpoints with optional HTTPS filtering. Runs as a hosted gateway at pipeworx.io, so no local setup required. Useful when you need Claude to look up chain metadata, validate network names, or grab RPC URLs during blockchain development workflows. Part of a larger 250+ source gateway, but works standalone if you only need chain data. Plain HTTP transport, drop the URL in your config and go.