3 Services from sanctions.nsgoods.org

Screens a blockchain address against the OFAC Specially Designated Nationals (SDN) list and returns a cryptographically signed verdict indicating whether the address is sanctioned

Screens the payee addresses of an x402 payment endpoint against OFAC, UN, EU, and UK sanctions lists before payment is made, returning a signed per-payee and overall verdict.

Screens a blockchain address against multiple sanctions lists (OFAC, UN, EU, HMT) and returns a cryptographically signed verdict