Ultra Swap API to get the token balances of an account.
const balancesResponse = await ( await fetch(`https://lite-api.jup.ag/ultra/v1/balances/3X2LFoTQecbpqCR7G5tL1kczqBKurjKPHhKSZrJ4wgWc`) ).json(); console.log(JSON.stringify(balancesResponse, null, 2));
{ "SOL": { "amount": "0", "uiAmount": 0, "slot": 324307186, "isFrozen": false } }
{ "error": "Invalid address" }