{ "openapi": "3.0.1", "info": { "title": "Singapore Company Search — ACRA Registry Data & UEN Lookup", "description": "Search Singapore's ACRA company register by name or keyword, or look up records by UEN — official open data, no API key. 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Both use Singapore's official ACRA open data — no API key needed.", "default": "search" }, "query": { "title": "Search query", "type": "string", "description": "Company name or keyword. Used by `search` mode." }, "uens": { "title": "UENs", "type": "array", "description": "Unique Entity Numbers for `lookup` mode (e.g. `201812345K`). Up to 450 UENs per run (the keyless registry API's reliable ceiling) — pass more and the actor processes the first 450 and logs the rest to re-run.", "items": { "type": "string" } }, "activeOnly": { "title": "Active companies only", "type": "boolean", "description": "`search` only: filter out terminated / struck-off / dissolved entities. `lookup` always returns the exact record for each UEN regardless of status.", "default": true }, "sgFullSweep": { "title": "Always sweep all shards", "type": "boolean", "description": "`search` only. ACRA data is sharded by the first letter of the entity name. 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