supremeai
Probe a public HTTP(S) URL and report availability: up/down, HTTP status, and latency in ms. Use it to check whether another paid API or x402 service is alive before spending money calling it. Public internet targets only.
Go to this service →Our latest check (2026-10-11)
- Answering
- Yes — valid x402 payment terms
- Time to answer
- 249 ms
- Price
- $0.003 per call
- Paying buyers, last 30 days
- 2 (directory's own records)
- Paid calls, last 30 days
- 2
- Category
- Health (non-drug)
- Address
- https://agents.supremeai.ca/v1/health-check
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/f9a90ff6a379.json. Paid lookup by address: GET /api/seller?resource=… ($0.001, x402).