io.github.cyanheads/sanctions-screening-mcp-server

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, 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.

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 any sanctions hits screened against the same legal name across all loaded watchlists. 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).

List the sanctions watchlists (OFAC SDN + Consolidated, EU, UK, UN) and GLEIF datasets currently loaded in the local mirror, each with its record count, source URL, license, and the mirror's readiness and as-of timestamp — for GLEIF, also whether its reporting exceptions are loaded and how many. Use this for provenance and freshness on any result — results are only as current as the last mirror refresh, and a not-ready mirror means screening cannot run yet. Attribution: UK data is under the Open Government Licence v3.0; all sources are cited here.

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.

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, 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.

Screen a name (person, company, vessel, aircraft) against all loaded sanctions watchlists at once — OFAC SDN + Consolidated, EU, UK, and UN — alias- and fuzzy-aware. Returns scored potential matches with the source list, sanctioning program, designation date, and the matched alias. Strict mode (default) matches exact-normalized then all-tokens-present; fuzzy mode (or auto when strict is empty) 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. 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."

Trace the GLEIF Level 2 corporate-ownership graph for an LEI: direct and ultimate parents and/or children, traversed breadth-first to a bounded depth, with relationship type for each edge. Set screenNodes to also screen every entity in the graph against all loaded watchlists — resolving "is anyone in this ownership chain sanctioned." Each per-node screen is a screening AID: hits are candidates to verify, and an empty result for a node is not a clearance of that node. Each node whose parents were walked carries parentStatus for its direct and ultimate parent: a published relationship, a reporting exception with the reasons the entity gave (such as NATURAL_PERSONS or NON_CONSOLIDATING), none, or unknown when reporting exceptions are not loaded. The response says what it could not do: complete/truncated/missingEntityLeis report whether the loaded relationship graph within the depth is fully shown, screeningStatus reports whether the cross-reference actually ran, and each screened node reports whether its own hit list was capped. Requires a valid 20-character LEI (use sanctions_resolve_entity to obtain one).