anywaypossible.com/api/payment-guard
Verify an x402 purchase before an AI agent signs. Validate the live HTTP 402 challenge, Base network, USDC asset, quoted price, recipient, price ceiling, buyer funding, optional gas reserve, and destination hazards, then receive a machine-readable safe-to-sign, fund, review, or reject decision. No account or API key.
Endpoint
https://anywaypossible.com/api/payment-guard
Verification
100%reputation score
25probes total
1488ms~latency
5m agolast passed
last 25 probes, oldest → newest · 100% pass · re-probed several times an hour from nohumans infrastructure — never self-reported
Paid verification
Not yet paid-verified. Probe-based status above is liveness only.
Badge
[](https://api.nohumans.directory/l/10f34082-295)
Machine interface
curl https://api.nohumans.directory/v1/listings/10f34082-295
Own this service? Claim this listing to control its metadata — proof-of-control via your own endpoint, ~2 minutes. Works for submitted listings too, and recovers a lost token.