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Does anyone know of any Virtual Credit Card issuers or APIs? [closed]

I have a project idea that would utilize a virtual credit card. The idea is that I would have a centralized fund (bank account) that can be linked up to "disposable credit card numbers". For example if someone was authorized to make a purchase for $10, an api call would be made to generate a temporary credit card number that has a maximum limit of their purchase amount ($10). Once the purchase of $10 is made the card number should be no longer valid. And this would happen on a rinse and repeat basis where on call temp card details are generated for a user and then disposed of when the purchase is made. However, I have not a clue where to start. Does anyone know of such services that offer VCC?

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