One GLEIF entity, with its relationships and ISINs

The full Level-1 record for a single LEI plus its Level-2 relationships, any declared reporting exceptions, and its LEI↔ISIN mappings. A structurally impossible LEI returns 400 INVALID_LEI (it fails the ISO 17442 check digit); a well-formed LEI we do not hold returns 404. Corporate hierarchy as reported to the Global LEI System: accounting consolidation under IFRS/US-GAAP, not percentage ownership and not beneficial ownership. Natural persons are out of scope, and reporting is partial — an absent parent usually means the filer declared a reporting exception rather than that none exists. Plan-gated: requires the can_use_gleif entitlement (Analyst plan and up); non-entitled plans receive 403 PLAN_REQUIRED. Source: GLEIF Golden Copy, published under CC0 1.0. Every response carries meta.attributions[] with GLEIF’s required non-endorsement notice.