One signed preflight for an autonomous x402 payment: WalletGuard counterparty screening, Payment Policy challenge validation, and structured evidence verification. Returns allow, deny, or needs_review plus the component findings and a tamper-evident service receipt. Caller-provided wallet context only; no external chain-intelligence feed.
| Network | Scheme | Amount | Pay To |
|---|---|---|---|
| Base | exact | $0.25 USDC | 0x5171...4c1B |