numberintel.dev
Signed settlement attestation: we make a REAL x402 purchase from your target endpoint (up to $0.1), grade the delivered response against its advertised schema, and return an EIP-191-signed attestation embedding the on-chain USDC receipt. Pr
Go to this service →Our latest check (2026-10-14)
- Answering
- Yes — valid x402 payment terms
- Time to answer
- 456 ms
- Price
- $0.250 per call
- Paying buyers, last 30 days
- 1 (directory's own records)
- Paid calls, last 30 days
- 6
- Category
- Blockchain reads
- Address
- https://numberintel.dev/v1/attest
Accuracy: paid answers checked against an independent record
Not yet in our paid checks. A seller we have not checked has neither passed nor failed.
For agents
This page as JSON: /sellers/ebe74f1ef0fd.json. Paid lookup by address: GET /api/seller?resource=… ($0.001, x402).