# Card Real-Time Decisioning

- `OBJECT` [**Real-time decision request object**](/api/card-real-time-decisioning/real-time-decision-request-object) — The authorization request sent to your system when Column receives a card transaction.
- `OBJECT` [**Real-time decision response object**](/api/card-real-time-decisioning/real-time-decision-response-object) — Your system's authorization decision, which must be returned within 3 seconds.
- `OBJECT` [**3DS authentication decision request object**](/api/card-real-time-decisioning/3ds-authentication-decision-request-object) — The request sent to your system during a 3DS authentication.
- `OBJECT` [**3DS authentication decision response object**](/api/card-real-time-decisioning/3ds-authentication-decision-response-object) — Your system's 3DS authentication decision, which must be returned within 1 second.