Overview
Reads a wallet's current ERC-20 token balance with a read-only balanceOf call on Base, Ethereum, Arbitrum, Optimism, Polygon, BSC, or Avalanche. Exact buyer-demand slug. Uses public RPC only, co-fetches decimals, returns raw and decimal-formatted balance, and supports historical block reads. No custody, transfers, trading, or investment advice. Use it as a current balance API or wallet token balance lookup.