Base & BSC Wallet Audit — balance, tx count, USDC/USDT

Inspect any EVM wallet on Base and BNB Smart Chain in one GET: native balance (ETH/BNB), transaction count, latest block, plus USDC and USDT token balances with contract addresses. Use cases: base balance checker, BSC wallet audit, EVM address inspector, USDT balance checker, ERC-20 balance lookup, pre-payment wallet verification, treasury monitor. Read-only public RPCs, no API key, instant JSON.