Mercer x402 (hub probe)
Settlement canary: returns a timestamped pong JSON after USDC micropayment. Use to verify x402 client + wallet + facilitator end-to-end.
Go to this service →Our latest check (2026-10-11)
- Answering
- Yes — valid x402 payment terms
- Time to answer
- 365 ms
- Price
- $0.001 per call
- Paying buyers, last 30 days
- 8 (directory's own records)
- Paid calls, last 30 days
- 8
- Category
- Developer tools and utilities
- Address
- https://x402.lucidcove.org/v1/ping
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/d3f3664f087a.json. Paid lookup by address: GET /api/seller?resource=… ($0.001, x402).