FractalAI x402 Notary
FractalAI Notary: pay for an independent ML-DSA-65 attestation of an x402 settlement.
Go to this service →Our latest check (2026-10-11)
- Answering
- Yes — valid x402 payment terms
- Time to answer
- 768 ms
- Price
- $0.005 per call
- Paying buyers, last 30 days
- 7 (directory's own records)
- Paid calls, last 30 days
- 11
- Category
- Payments and on-ramps
- Address
- https://fractalai.net.co/api/x402/witness
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/d0d4ecad2395.json. Paid lookup by address: GET /api/seller?resource=… ($0.001, x402).