underground.substratesymposium.com
Wire-In Lookup — per-entity merchant-seat verdict. Pass ?ua=<counterparty-UA>; get ONE signed row: score (0.0-1.0 payment-reliability observed at this seat), confidence, verdict (settled | attempted_payment | probe_only | low_signal | unkno
Go to this service →Our latest check (2026-10-11)
- Answering
- Yes — valid x402 payment terms
- Time to answer
- 221 ms
- Price
- $0.010 per call
- Paying buyers, last 30 days
- 2 (directory's own records)
- Paid calls, last 30 days
- 5
- Category
- Payments and on-ramps
- Address
- https://underground.substratesymposium.com/api/wire-in
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/6ca768a07de6.json. Paid lookup by address: GET /api/seller?resource=… ($0.001, x402).