Cards

You can use the CreateCard endpoint to save a credit or debit card to a Square account. Developers can integrate the Cards API in their application to let Square sellers:

• Save a card that can be charged by any Square seller who uses your application. Your application specifies the organization access token in the CreateCard request.
• Save a card that can be charged by a single Square seller. Your application specifies the access token of the specific seller account in the CreateCard request.

The Cards API also supports other endpoints to manage the cards.