Doormat Payverify
https://payverify.sebastiaan-ba3.workers.dev/Verify a Base USDC transaction without running your own node. Free /verify, paid /statement 0.15 USDC.
Paid verification
How it worksNo sponsored paid call yet.
Pay this endpoint once from your own wallet (Base USDC, up to $1.00) and we call it and record what came back. Your wallet pays the listed recipient directly; Agent Tools never holds funds. Sponsored checks prove delivery; they do not count as demand.
Quality grade
How grading works- ✓ Answers a real HTTP 402 challenge
- ✓ Publishes a /.well-known/x402 descriptor
- ✓ Payment address on record
- ✓ Settlement network declared
- ✓ Price declared
x402 readiness
Readiness is how fully this listing follows its protocol and how it behaved in our probes over 30 days. It is shown for reference and does not move it in search. Search order and leaderboards use the separate quality grade (here B, 61.8/100), which weighs availability, payability and on-chain demand. How the two differ
| Valid payment requirements | 10/10 | Payment requirements carry a payee, a mainnet network and a price. |
| Live 402 challenge | 20/25 | Endpoint reachable; its 402 challenge was seen earlier (106 ms). |
| x402 version | n/a | x402 version not observed yet. |
| Signed descriptor | n/a | No x402 standard defines a signed descriptor. |
| Uptime (30 days) | 15/15 | 32/32 probes succeeded over 30 days (100%). |
| Resource declaration | 5/10 | Declares 2 paid resource(s). |
| Verified identity | 8/10 | Publisher descriptor (/.well-known/x402 or OpenAPI) on record and domain control verified on agent-tools.cloud (company-registry check not available yet). |
| Freshness + modern flags | 1/5 | not seen in a source for over 30 days; declares x402. |
| Security declaration | n/a | Payment is the access control for an x402 resource. |
Compared with peers
Against 10,082 reachable x402 APIs in our daily snapshot (2026-11-12 06:46 UTC). Display only; it does not change search order.
- Readiness
- Higher than 52% of peers
- This listing 79 · peer median 78
- Latency
- Faster than 85% of peers
- This listing 106 ms · peer median 205 ms
Where it loses the most points, and how to win them back
- Live 402 challenge −5
— Answer the paid path with a valid 402 challenge.
Now: Endpoint reachable; its 402 challenge was seen earlier (106 ms).
- Resource declaration −5
— Declare each paid resource with its input and output schema.
Now: Declares 2 paid resource(s).
- Freshness + modern flags −4
— Keep the listing current in the registry or source it comes from.
Now: not seen in a source for over 30 days; declares x402.
Paid endpoints
2 resource(s) advertised by this origin. Each price below is that resource's own x402 price; the headline price is the range across them.
https://payverify.sebastiaan-ba3.workers.dev/verify-settlement
$0.0100 / call
No-KYC x402 settlement check: tell us a transaction hash, the address that should have been paid, and the minimum amount -- we read Base directly and tell you whether that payment actually landed. Built for x402/agent-commerce sellers who want facilitator-style payment verification without a KYC'd a
https://payverify.sebastiaan-ba3.workers.dev/statement
$0.0500 / call
Base USDC mini reconciliation statement: give any address, get its most recent incoming/outgoing USDC transfers found in a recent Base block window.
How to call
curl -sS -i -X GET https://payverify.sebastiaan-ba3.workers.dev/ # expect HTTP 402 Payment Required (about 0.01 USDC/call)Listed in
Directories this entry was found in.