chainquery Bitcoin RPC: pay-per-call Bitcoin Core over x402, no API key. Fill a PSBT's missing UTXO and script data from the UTXO set, via chainquery's independent full node. Bitcoin Core utxoupdatepsbt.
| Network | Scheme | Amount | Pay To |
|---|---|---|---|
| Base | exact | $0.01 USDC | 0x7Cf4...87ff |