Pyfile x402 API
HMAC signature of a string: returns hex and base64. ?algo=sha256|sha512|sha1|md5|sha3-256&key=<secret>&input=<message>. Deterministic and independently verifiable.
Go to this service →Our latest check (2026-10-11)
- Answering
- Yes — valid x402 payment terms
- Time to answer
- 494 ms
- Price
- $0.003 per call
- Paying buyers, last 30 days
- 3 (directory's own records)
- Paid calls, last 30 days
- 18
- Category
- Developer tools and utilities
- Address
- https://pyfile-agent.taile3ff35.ts.net/data/hmac
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/a70b641f9853.json. Paid lookup by address: GET /api/seller?resource=… ($0.001, x402).