import { Avalanche } from "@avalanche-sdk/chainkit";

const avalanche = new Avalanche({
  chainId: "43114",
});

async function run() {
  const result = await avalanche.data.evm.address.balances.getNative({
    blockNumber: "6479329",
    address: "0x71C7656EC7ab88b098defB751B7401B5f6d8976F",
    currency: "usd",
  });

  console.log(result);
}

run();

{
  "nativeTokenBalance": {
    "name": "Wrapped AVAX",
    "symbol": "WAVAX",
    "decimals": 18,
    "logoUri": "https://images.ctfassets.net/gcj8jwzm6086/5VHupNKwnDYJvqMENeV7iJ/fdd6326b7a82c8388e4ee9d4be7062d4/avalanche-avax-logo.svg",
    "chainId": "43114",
    "price": {
      "currencyCode": "usd",
      "value": "42.42"
    },
    "balance": "2000000000000000000",
    "balanceValue": {
      "currencyCode": "usd",
      "value": "42.42"
    }
  }
}