Screen any person, company, or entity against OpenSanctions -- 1.3M+ entries from OFAC SDN, EU Sanctions, UN List, and 330+ sources. Returns sanctioned: true/false, entity type, risk topics (sanction, debarment, role.pep), and source datasets. Optional: country (ISO-2), address, birthDate narrow false positives. For AML/KYC pre-screening and off-ramp compliance. Pay with USDC on Base, Polygon, or Arbitrum.