eth_chainId

Ethereum API

Returns the chain ID of the current network.

Params

(0)

(Chain ID)

string

Match pattern:

^0x([1-9a-f]+[0-9a-f]*|0)$

Install MetaMask for your platform and refresh the page. The interactive features in this documentation require installing MetaMask.

await window.ethereum.request({
  "method": "eth_chainId",
  "params": []
});