Ethereum Address & Balance Checker

index.js

// This is incredibly stupid and you will never hit an address with a balance.
// Anyway, enjoy.

const bip39 = require("bip39");
const { hdkey } = require("@ethereumjs/wallet");
const { Web3 } = require("web3");

const web3 = new Web3("RPC_ENDPOINT_GOES_HERE");

const generateMnemonic = () => {
  return bip39.generateMnemonic();
};

const deriveAddressAndBalance = async (mnemonic) => {
  const seed = await bip39.mnemonicToSeed(mnemonic);
  const hdWallet = hdkey.EthereumHDKey.fromMasterSeed(seed);
  const derivedPath = "m/44'/60'/0'/0/0";
  const childNode = hdWallet.derivePath(derivedPath);
  const address = childNode.getWallet().getChecksumAddressString();

  const balance = await web3.eth.getBalance(address);

  return { address, balance };
};

const generateAndCheck = async () => {
  try {
    const mnemonic = generateMnemonic();
    const { address, balance } = await deriveAddressAndBalance(mnemonic);
    if (balance != 0) {
      console.log(`${mneumonic} | Balance: ${balance}`);
    } else {
      console.log(`${address} | Balance: ${balance}`);
    }
  } catch (error) {
    console.error("Error:", error);
  }

  generateAndCheck();
};

for (let i = 0; i < 5; i++) {
  generateAndCheck();
}