npm install alchemy-sdk

yarn add alchemy-sdk

// Imports the Alchemy SDK
const { Alchemy, Network } = require("alchemy-sdk");

// Configures the Alchemy SDK
const config = {
    apiKey: "alchemy-replit", // Replace with your API key
    network: Network.ETH_MAINNET, // Replace with your network
};

// Creates an Alchemy object instance with the config to use for making requests
const alchemy = new Alchemy(config);

const main = async () => {
    //Initialize variables for the parameters
    let vitalikAddress = "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045";
    let usdcContract = "0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48";
    
    //Call the method to return the token balances for this address
    let response = await alchemy.core.getTokenBalances(vitalikAddress, [usdcContract])

    //Logging the response to the console
    console.log(response)
};

main();

{
  address: '0xd8da6bf26964af9d7eed9e03e53415d37aa96045',
  tokenBalances: [
    {
      contractAddress: '0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48',
      tokenBalance: '0x0000000000000000000000000000000000000000000000000000000002561840'
    }
  ]
}