Apier.no Sandbox API
Zero-auth, deterministic, CORS-open mirrors of every Category B company endpoint. Returns synthetic Norwegian company fixtures so agents can test failure-flows without provisioning an Apier API key, without hitting Altinn test infra, and without polluting production audit / provenance chains. `security: []` on every operation overrides any global Bearer requirement. Reserved test orgs (999000001-005), reserved error orgs (999000901-904), and `?simulate_error=` are documented on `/api/v1/capabilities`. Determinism contract: same input → byte-equivalent response, EXCLUDING `_meta.response_timestamp`.