Chainlist

liveCryptoDeveloper

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

3tools
0msauth
free tier50 calls/day

Tools

list_chains

Browse / filter the EVM chain registry.

Parameters
NameTypeDescription
testnetoptboolean—
nameoptstringCase-insensitive substring
activeoptboolean—
▶Try it
get_chainrequired: chain_id_or_short_name

Fetch a chain by chainId or shortName.

Parameters
NameTypeDescription
chain_id_or_short_namereqstring—
▶Try it
find_rpcrequired: chain_id_or_short_name

RPC endpoints for a chain. https_only filters out plaintext.

Parameters
NameTypeDescription
chain_id_or_short_namereqstring—
https_onlyoptboolean—
▶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");