get_ofac_sdn

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Returns OFAC Specially Designated Nationals (SDN) sanctions list entries, republished as-is (not a screening service; verify against treasury.gov). Use this for: sanctions-program queries (e.g., 'who's on the Russia SDN list'), or cross-referencing named individuals / entities against the canonical US sanctions list. Source: US Treasury OFAC — sanctionslistservice.ofac.treas.gov. ~19,000 entries refreshed daily. Each entry represents a person, entity, vessel, or aircraft sanctioned by the US government under one or more programs (CUBA, IRAN, SDGT [terrorism], NPWMD [WMD proliferation], RUSSIA-EO14024, etc.). US persons (citizens, residents, US-domiciled companies) are legally prohibited from transacting with SDNs — this is the canonical list published by OFAC. Filter by name substring for primary lookups. entity_type values: 'individual', 'entity', 'vessel', 'aircraft'. Every SDN record carries exactly one of the four — companies are 'entity'. program is a substring filter against the comma-delimited Program field (e.g., 'iran', 'russia', 'narcotics'). remarks substring catches aliases, DOB / passport references, and related-party hints. Direct ent_num lookup is fastest (OFAC's stable entity number). WHAT'S NOT IN v1A (data-model limitations to know about): the schema does NOT include designation_date (when OFAC originally added the entry). OFAC's basic SDN.csv source file only provides 12 columns and omits this — the date lives in OFAC's advanced XML and a separate 'Recent Actions' page on their site. So 'sanctions added in the last N days' is not directly queryable via this tool — point users at ofac.treasury.gov/recent-actions for that specific question. v1.1 polish will add advanced-XML ingestion to capture designation_date. Also: there's no since/until filter and no date sort option for the same reason — the only sort options are name and ent_num. Pure-publisher posture: KeyVex returns OFAC's published list as-is. No derived 'risk score' or 'similarity match' — agents handle fuzzy matching downstream. For broader list coverage, agents should also consult the US Consolidated Screening List (get_screening_list) which spans 12 export-control / sanctions lists from State + Commerce + Treasury.