Agent Output Verifier
Independently verify an agent's output before you pay: an invoice or any deliverable, checked against your JSON Schema and rules like sums matching totals. Pass/fail, % passed, fix hints and a signed receipt. $0.02 USDC, no signup, x402 v2.
Go to this service →Our latest check (2026-10-11)
- Answering
- No — HTTP 200
- Time to answer
- 146 ms
- Price
- $0.020 per call
- Paying buyers, last 30 days
- 2 (directory's own records)
- Paid calls, last 30 days
- 13
- Category
- Email and phone validation
- Address
- https://fastapi-service-5ag4.onrender.com/verify/schema
Accuracy
Accuracy scores are published once a seller has enough paid checks against an independent record (at least 7 scored answers over at least 7 days). Until then no score is shown, and a missing score is never a pass.
For agents
This page as JSON: /sellers/b87a29f32c63.json. Paid lookup by address: GET /api/seller?resource=… ($0.001, x402).