BUMIT

Verify a Swiss business (current scope: Switzerland only) by uid, name and/or address, using evidence from official/public Swiss sources: Zefix (commercial-register index), plus SECO sanctions and FINMA authorisation datasets ingested by the operator. Each check names its source (checks[].sources), data basis, provenance and freshness (observed_at, retrieved_at, source timestamps); explain to the user which source supplied the evidence and when BUMIT observed or retrieved it. A timestamp that is null is unknown — do not infer one. Returns the BUMIT business-verification result (contract 1.1.0); result.outcome is one of VERIFIED, NOT_VERIFIED, REVIEW_REQUIRED, UNAVAILABLE, NOT_FOUND, AMBIGUOUS, UNSUPPORTED — all are business results, not errors. You may call with only a company name; no UID is needed. An exact unique legal-name match is resolved and verified in one call. Otherwise result.outcome is AMBIGUOUS and resolution.candidates lists commercial-register companies (uid, legal_name, seat, canton): BUMIT never selects a partial/similar or duplicate-name candidate. Choose the intended company from your context (or ask the user), then call verify_business again with {"uid": "<candidate uid>"}. NOT_FOUND means the register search returned no candidate. REVIEW_REQUIRED: additional review of the blocking checks is required before acting. UNAVAILABLE: evidence could not currently support a conclusion; it is NOT NOT_VERIFIED. Checks marked UNSUPPORTED have no source and must stay unsupported.