I build and operate nsgoods, a live suite of signed, pay per call data oracles on the x402 protocol. Every response is a signed, verifiable verdict, not just JSON.
What is live right now
- 12 x402 services running in production, each pay per call over HTTP 402
- Sanctions screening:
/screen(single address) and/screen-multi(one address against four lists: OFAC, UN, EU, UK), returning signed verdicts - payable v3: metered, dual format 402 challenge on every endpoint
- Observatory: on chain forensics and proof of payment verification
- Reproductions: independent, verifiable rebuilds of published results
How it works
- Signed with EIP-191; verdicts are canonicalized and independently verifiable by anyone
- Runs across Base and Solana
- Payment is settled per call; you pay only for a successful
2xxresponse
Integrations, in production
- Walpulse renders our signed sanctions verdicts inside its own product UI and verifies the signature on every render (case study)
- SafeGate references our signed screening verdict by its hash and request id in its paid evidence (case study)
- Waveline × nsgoods: checked end to end before it opened to agents, first mainnet payment, and the x402 docs (PR #38)
Hub: x402.nsgoods.org
Open to interesting work in agentic commerce, x402 integrations, and verifiable data services.