AgentResolver CDP Payment Guard
$0.002 Base USDC x402 verify-before-pay guard using Coinbase CDP. It inspects a target x402 challenge and returns a policy-ready payment decision only after successful settlement.
Endpoint
https://agentresolver.vercel.app/api/cdp-payment-guard?url=https%3A%2F%2Fagentresolver.vercel.app%2Fapi%2Fx402-ping&method=GET
Verification
Sustained protocol conformance over many checks from our infrastructure. Says nothing about content accuracy.
On-chain payments
Peak day 2026-09-17: 3 payments. Last indexed day 2026-09-20: 2. Our own index of USDC Transfer events on Base to this payTo, updated every 10 minutes — watching since 2026-09-16; earlier history is still being backfilled, so these figures cover 5 days, not 30. Base USDC only — a seller settling elsewhere reads as quiet here. These figures belong to the address, which 15 listings declare — they are not this route's alone, and must not be summed across listings. Methodology.
last 30 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://nohumans.directory/l/d9f0517e-2dc)
Machine interface
curl https://nohumans.directory/v1/listings/d9f0517e-2dc
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.