Chainlist

live CryptoInfrastructure

Registry of EVM chains — chainId, shortName, RPC URLs, explorers, faucets. Sourced from chainid.network.

3 tools
0ms auth
free tier 50 calls/day

Tools

list_chains

Browse / filter the EVM chain registry.

Parameters
Name Type Description
testnet opt boolean —
name opt string Case-insensitive substring
active opt boolean —
▶ Try it
get_chain required: chain_id_or_short_name

Fetch a chain by chainId or shortName.

Parameters
Name Type Description
chain_id_or_short_name req string —
▶ Try it
find_rpc required: chain_id_or_short_name

RPC endpoints for a chain. https_only filters out plaintext.

Parameters
Name Type Description
chain_id_or_short_name req string —
https_only opt boolean —
▶ Try it

Test with curl

The gateway speaks JSON-RPC 2.0 over HTTP POST. You can test any pack directly from the terminal.

List available tools
bash 
curl -X POST https://gateway.pipeworx.io/chainlist/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'
Call a tool
bash 
curl -X POST https://gateway.pipeworx.io/chainlist/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"list_chains","arguments":{}}}'

Use with the SDK

Install @pipeworx/sdk to call tools from any TypeScript/Node project.

TypeScript 
import { Pipeworx } from '@pipeworx/sdk';
const px = new Pipeworx();
const result = await px.call("list_chains", {});
ask_pipeworx 
// Or ask in plain English:
const answer = await px.ask("registry of evm chains — chainid, shortname, rpc urls, explorers, faucets");