SpendPreflight — trust and verification tools for stablecoin payments, built for AI agents and the people who run them. Export native Base USDC wallet transfers as JSON or CSV for a past range up to 90 days, start inclusive/end exclusive. Exact decimal running balances, counterparties and OFAC flags. Up to 1000 transfers/128 RPC calls/25 seconds; oversized or unavailable historical data fails without charge. Informational, not tax advice.