Stripe give you a `funding` property on a card source [0], which at least in the UK distinguishes between debit, credit and prepaid cards somewhat reliably. 0:

Stripe give you a `funding` property on a card source [0], which at least in the UK distinguishes between debit, credit and prepaid cards somewhat reliably. 0: https://stripe.com/docs/api/python#card_object-funding https://stripe.com/docs/api/python#card_object-funding I assume this is not exclusive to Stripe.