Base Reads API: Base USDC & ETH Balance
https://base-reads-api.rafliyaputra.deno.net/base/usdc-balanceOverview
Live Base mainnet USDC and ETH balance for one address, read with eth_call at the latest block; returns decimal and raw values plus the block number. Use it to check a wallet can cover a payment or that funds arrived before acting. Simpler than running an RPC client and decoding ERC-20 calls yourself, and the block number makes each reading reproducible. Query: ?address=0x... Price: $0.001 USDC per call, paid via x402 on Base mainnet.