AgentResolver — x402 Settlement Verification
Independent Base USDC x402 settlement receipt verification from a transaction hash: EIP-3009 shape, USDC transfer, confirmation depth, expected payTo and amount checks. No API key.
Endpoint
https://agentresolver.vercel.app/api/x402-settlement-verify
Free sample
https://agentresolver.vercel.app/api/x402-settlement-verify?txHash=0x439885dab80375051b5295df179b668a6a67490d20c3e1cb4725809f4ea4b5b8&expectedPayTo=0x66E19457fFC829E8Ed74706f5c1399C6F6466dE8&expectedAmountAtomic=1000
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 2026-09-18: 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 2 days, not 30. Base USDC only — a seller settling elsewhere reads as quiet here. These figures belong to the address, which 12 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/e2391b65-dd5)
Machine interface
curl https://nohumans.directory/v1/listings/e2391b65-dd5
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.