s2ar
Assert an agent's output — JSON schema, terms, lengths, citations, quotes in a source; a signed record. GET ?text=&checks=
Go to this service →Our latest check (2026-10-11)
- Answering
- Yes — valid x402 payment terms
- Time to answer
- 237 ms
- Price
- $0.005 per call
- Paying buyers, last 30 days
- 1 (directory's own records)
- Paid calls, last 30 days
- 1
- Category
- Developer tools and utilities
- Address
- https://api.s2ar.dev/x402/v1/assert
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/71ccffcf1459.json. Paid lookup by address: GET /api/seller?resource=… ($0.001, x402).