Discover / underground.substratesymposium.com
underground.substratesymposium.com
Not checkedWire-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 | unknown), observed counts, Ed25519 attestation. $0.01 USDC/entity on Base or Solana. Fold the score into your own counterparty model — wire it into your scoring loop. Wallet lookup (?wallet=) is v2.
- Listed price
- $0.01
- Checks
- Not checked
- In our index since
- 14 Oct 2026
Endpoint
curl -i https://underground.substratesymposium.com/api/wire-in # 402 Payment Required: pay with an x402 client (USDC on Base), # then send the same request again with the payment attached.
Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/underground.substratesymposium.com
Questions
What price is recorded for underground.substratesymposium.com?
Its listed price is $0.01.
What payment terms does underground.substratesymposium.com advertise?
The listing advertises x402, Base, Solana and USDC. It names cdp as its facilitator. Check the seller's current payment challenge and authentication requirements before paying.
Where is underground.substratesymposium.com listed?
In x402 Bazaar. Superstables first indexed it on 14 Oct 2026.
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