Screen a name (person, company, vessel, aircraft) against loaded sanctions and export-control watchlists — OFAC SDN + Consolidated, EU, UK, UN, and the six BIS/State CSL lists — alias- and fuzzy-aware. Check sanctions_list_sources for coverage before interpreting an empty result; zero-record CSL lists are not loaded. Returns scored potential matches with the source list, sanctioning program, designation date, and the matched alias; an OFAC party both OFAC lists publish under one entry ID is one hit, its sources naming both lists. Strict mode (default) matches exact-normalized then all-tokens-present, then runs a fuzzy pass over each selected list strict finds nothing on: a full pass when strict finds nothing on any list, otherwise one that adds only candidates covering every word of the name other than legal forms, articles and other function words, and the jurisdiction codes uk, usa, uae, and rf, ranked after the strict hits. Fuzzy mode runs the fuzzy pass over every selected list. It adds Jaro-Winkler and phonetic matching and labels hits approximate with a raw 0–1 similarity score plus the count of query tokens the candidate covers, which orders candidates that tie on score; fuzzySources names the lists it searched. Results are paged: totalAvailable and hasMore report matches beyond the returned page, and nextOffset retrieves them. This is a screening AID for a human/compliance review, NOT a compliance determination: a hit means "review this candidate against the official source," and an empty result never means "cleared."
Look up an identifier — a vessel IMO number, a SWIFT/BIC code, a digital-currency wallet address, a passport or national ID number, or any other identifier a list publishes — against all loaded sanctions watchlists at once: OFAC SDN + Consolidated, EU, UK, and UN. Exact match after normalization, with no fuzzy or partial matching and no score: spacing, letter case, and the separators - . / are ignored, an IMO number matches with or without its IMO prefix, a SWIFT/BIC code compares on its first eight characters so a branch code matches its institution, and a wallet address folds case only where its encoding is case-insensitive (hex, bech32, cashaddr — never base58). Returns every designation that publishes a matching identifier, one per designation — an OFAC party both OFAC lists publish under one entry ID is one hit, its sources naming both lists — with the identifiers that matched as published; sanctions_get_designation pulls the full record. This is a screening AID for a human/compliance review, NOT a compliance determination: a hit means "review this candidate against the official source," and an empty result never means "cleared" — an identifier a list prints only in free-text remarks, or bundled with other numbers in one field, does not match.
Fetch the full record for one sanctions designation by source list + entry ID or the list's published reference number — the drill-in after sanctions_screen_name or sanctions_screen_identifier surfaces a candidate, or the lookup for a reference a notice cites (UN QDe.004, EU EU.27.28, UK OFSI Group ID). Returns all published aliases, identifiers (passport, national ID, tax and registration numbers, SWIFT/BIC codes, digital-currency addresses, vessel call signs, aircraft tail and serial numbers, phone numbers, email addresses, websites), addresses, dates and places of birth at the precision the source published, nationalities, descriptive features (a vessel's flag, type, and tonnage; an aircraft's model and operator; a title or gender; sanctions notes), sanctioning program, legal basis, and designation date. The record reflects exactly what the source published; missing fields mean the source omitted them. This is a screening aid — the designation record supports a compliance review, it is not itself a determination.
List supported watchlists (OFAC SDN + Consolidated, EU, UK, UN, BIS Entity/Denied Persons/Unverified/Military End User, State ITAR Debarred/Nonproliferation) and GLEIF datasets with current mirrored counts, source URLs, licenses, readiness, and as-of timestamps. coverageNotice names unloaded CSL lists and how to refresh them; prior mirror readiness does not establish coverage of newly added lists. For GLEIF, reports Level 2 ownership relationships, reporting-exception coverage, and alternate-name index readiness. Use this for provenance, freshness, and coverage on any result. Attribution: UK data is under the Open Government Licence v3.0; BIS and State CSL data is supplied by the International Trade Administration under its published terms. This product uses the International Trade Administration’s Data API but is not endorsed or certified by the International Trade Administration.
Resolve a company or organization name (with an optional jurisdiction: a country code, which includes its subdivisions, or an ISO 3166-2 subdivision code) to candidate GLEIF Legal Entity Identifiers (LEIs), ranked. This turns a free-text counterparty name into a stable global identifier that sanctions_get_entity and sanctions_trace_ownership key off. Every name GLEIF publishes takes part: the legal name, previous legal names, trading names, alternative-language legal names, and ASCII transliterations of a legal name in another script — each candidate reports the name it matched on and that name's type, one candidate per LEI. Strict mode (default) matches exact-normalized then all-tokens-present; fuzzy mode (or auto when strict is empty) adds Jaro-Winkler scoring labeled approximate with a raw 0–1 score plus the count of query tokens the matched name covers, which orders candidates that tie on score. Results are paged: totalAvailable and hasMore report candidates beyond the returned page, and nextOffset retrieves them. Returns potential matches to confirm against the GLEIF record — name resolution is a candidate ranking, not an authoritative identification.
Fetch the full GLEIF Level 1 record for one LEI: legal name, other/trading names, legal and headquarters addresses, registration status, jurisdiction, registration authority and ID, and last-update date — plus a sanctions cross-reference against all loaded watchlists. The cross-reference screens the legal name and every other and transliterated name strict (exact, then all tokens present — never fuzzy, unlike sanctions_screen_name), and looks up the LEI and the registration number as exact non-document identifiers, the registration number matching only an identifier published for the country of the entity's legal jurisdiction. Hits merge to one per designation, an OFAC party both OFAC lists publish to one hit whose sources names both: matchedOn names every input that produced each, and a hit only an identifier produced carries matchedIdentifiers and no matchedName. The screening cross-reference is a screening AID: a hit is a candidate to verify against the official source, and no hit is not a clearance. screeningStatus says whether that cross-reference actually ran — an empty sanctionsHits under not_ready means the sanctions mirror was unavailable, not that nothing matched. sanctionsScreen says whether the hit list is the whole set: it reports how many potential matches existed before the cap, so a capped cross-reference is distinguishable from a complete one. LEI must be a 20-character GLEIF identifier (18 alphanumerics + 2 check digits).
Trace a paged GLEIF Level 2 ownership segment from a 20-character LEI (use sanctions_resolve_entity to obtain one). Direction both walks parents and children separately from the root, never sideways into siblings or co-parents; parents-side placement wins cycles. Ultimate-parent edges are shortcuts, never walked hops; ultimate-only nodes are flagged reachedVia: ultimate. Drain nextCursor with the same query, then re-root each boundary with its LEI, same-side direction and depth, including at depth five; deduplicate branch roots and edges across segments. Pages emit nodes, then edges, then boundaries, up to limit records (50 default, 100 maximum), stopping after an intact record reaches the soft 64-KiB target. Edges reference nodes across assembled pages. Cursors bind query and topology; changed topology requires restarting without a cursor. Entity and screening values read current mirrors, not an immutable snapshot. Set screenNodes to cross-reference only this page of nodes as sanctions_get_entity does: legal, other and transliterated names strict (exact then all tokens present, never fuzzy), LEI and country-matched registration number as exact non-document identifiers, with merged designation hits and matchedOn inputs. A node missing Level 1 is screened by LEI alone. Every hit is a candidate to verify; no hit is a clearance. Each eligible node retains direct and ultimate parentStatus: relationship, reporting exception and its reasons, none, or unknown when exceptions are not loaded. Read hasMore and truncationReasons separately from segment-wide missingEntityCount and page-local missingEntityLeis, screening counts and per-node ten-hit cap disclosures. A screening aid, not a compliance determination; a finished segment never proves full beneficial ownership.