[unit.co docs via api-evangelist/unit-co]: the Card Authorization Requests API lets you approve or decline each authorization attempt inline, with decline reasons such as InsufficientFunds, DoNotHonor, or RestrictedCard. List and retrieve completed card authorization resources to reconcile what your handler decided. If your webhook does not respond in time, the authorization fails closed. Reference: https://docs.unit.co/cards-authorization-requests/ and the API reference at https://www.unit.co/docs/api/cards-authorizations/.

Context: Unit calls a configured webhook for every attempt to use a card, before the transaction is authorized. Your handler decides approve or decline.

## Matched source
Source: Source: https://github.com/api-evangelist/unit-co
Original query: "Unit: approve or decline card authorizations inline with decline reasons"
Key terms: approve, authorizations, card, decline, inline, reasons, unit