6 agent-payable APIs. Every listing carries a tested call recipe - endpoint, auth shape, pricing, and known gotchas - on its detail page. blockint.ai ↗
Legacy minimal alias for address screening. Returns 'caution' (with reportCount, crimeTypes and any OFAC SDN sanctions entries) when reports or an official OFAC SDN match are found and 'no_c3_reports' otherwise, plus action and sanctioned.
Screen a domain name for phishing, fraud, and scam association in the C3 community database. Matches the exact hostname and its subdomains. Returns risk score and matching report details.
Screen a blockchain address against the official OFAC SDN list and public C3 reports. Returns a suggested action (BLOCK on an OFAC SDN match, REVIEW when reports exist, ALLOW_NO_REPORTS when nothing is found), risk intelligence, matching reports, related domains, and co-occurring addresses. Sanctions data comes only from the official OFAC SDN list, refreshed daily, and is not legal advice. ALLOW_NO_REPORTS and CLEAN mean nothing was found, not that an address is safe.
Batch screen up to 50 blockchain addresses in one call for a flat $0.40 USDC (equal to $0.008 per address when you send 50). For fewer than 40 addresses, single /screen calls at $0.01 each cost less. Each result has the same action, sanctions (official OFAC SDN list only) and risk fields as /screen. Results are keyed by address; coOccurringAddresses is empty and reports are limited to 5 per address.