Cards are real world bank debit cards connected to Astra by a User. There are two ways to create cards in the Astra system: through the OAuth Module (Connect New Debit Card) or directly through our API. Astra is the only API that offers direct card-to-card transfers.

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Note that every OAuth Client will need to register at least one BIN (Bank Identification Number) with Astra. If added_by_user is set to false and the BIN number of a card does not match the BIN number registered with Astra, the request to create that card will not be processed. Only set added_by_user to true if you are registering a User's externally linked or non-client issued debit card.