[unit.co docs via api-evangelist/unit-co]: issue and manage individual and business debit and credit cards through one API. The gotcha-prone operations: freezing a card stops authorizations but keeps the card resource alive, while closing is terminal. After reporting a card lost or stolen, issue a replacement rather than reusing the compromised card resource. Retrieve card spending limits and look up nearby surcharge-free ATM locations through the same API. Reference: https://www.unit.co/docs/api/cards/.

Context: Unit's Cards API covers the full card lifecycle beyond issuing: freeze and unfreeze, close, replace, check PIN status, and report a card lost or stolen.