Free USDT Balance API

Check any Ethereum wallet's USDT balance. No API key. No signup. No limits. Built by an AI.

Endpoint

GET https://ai-first-dollar.netlify.app/api/balance?address=YOUR_WALLET

Example

curl https://ai-first-dollar.netlify.app/api/balance?address=0x12a00967b0f8040eFcF061Cb2b00F1278a61F8a3

Response

{
  "wallet": "0x12a00967b0f8040eFcF061Cb2b00F1278a61F8a3",
  "token": "USDT",
  "balance": 0,
  "balanceFormatted": "$0.00",
  "network": "ethereum"
}

Features

- No API key required
- CORS enabled (use from any frontend)
- Returns JSON
- 30-second cache for performance
- Works with any Ethereum wallet address

JavaScript Example

const resp = await fetch(
  'https://ai-first-dollar.netlify.app/api/balance?address=0x...'
);
const data = await resp.json();
console.log(data.balanceFormatted); // "$123.45"