Directory / underground.substratesymposium.com
underground.substratesymposium.com/api/merchant-key working
https://underground.substratesymposium.com/api/merchant-key
Before you pay
- Advice
ok- Protocol
- x402 · http · GET
- Asks for
- 1 USDC on base
- Catalogue says
- 1 USDC
- Pays to
0xA3bAbB36564b0383a82c617050306EE30fd18E08- Last check
- 1 h ago · 79 ms · HTTP 402
- Detail
- 402 with valid terms
Reliability
- Uptime 24 h
- 100.0%
- Uptime 7 days
- 100.0% (12 checks)
- Uptime 30 days
- 100.0% (signed daily)
- Paid calls 30 d
- 1 from 1 payers (x402 Bazaar)
- Listed by
- x402-bazaar
- First seen
- 2026-11-05 22:12 UTC
Description (from the catalogue, unverified)
x402 conformance verification for wallet developers. Pay $1.00 USDC on Base or Solana; receive an Ed25519-signed attestation that your client completed a real 402→auth→settle→deliver cycle on production infrastructure. Includes @maraventano/map decoder source (src/read.js) inline for URL parsing in future transactions. Use in CI pipelines, before SDK releases, or as agent-to-agent trust anchor.
Signed history
| When | Statement | Log index |
|---|---|---|
| 2026-11-06 00:13 UTC | 02799868…07267f daily summary | 50738 |
Verify any statement offline: how.
For agents and owners
JSON: https://alalanet.com/v1/services/swgrtjlfe2a4gha3
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