isEthereum

The isEthereum utility is designed to verify if the chain id is a valid Ethereum Mainnet or Ethereum Sepolia chain id.

Usage

code

import { isEthereum } from '@coinbase/onchainkit';

// Ethereum Mainnet (chain ID: 1)
isEthereum({ chainId: 1 }); // returns true

// Ethereum Sepolia (chain ID: 11155111)
isEthereum({ chainId: 11155111 }); // returns true

// Base (chain ID: 8453)
isEthereum({ chainId: 8453 }); // returns false

Returns

boolean - Returns true if the chain id is Ethereum Mainnet or Ethereum Sepolia, otherwise false.

Parameters