Variable amount recurring billing [closed]

Question

Hi i'm looking for a payment gateway that can do recurring billing that changes month to month. Fogbugz do this, they charge based on how many active users there were that month. All of the APIs that i've found only let you set a fixed amount and it's difficult/impossible to vary the subscription amount month to month.

Has anyone come across any services that do this?

Answer 1

BrainTree might be a good solution if you are manually triggering the re-bill each month. They will give you a 'token' that represents the credit card number originally supplied.

You can store this number, which is worthless to a potential thief.

Answer 2

The Authorize.Net Customer Information Manager (CIM) allows you to store customer credit card information so future payments can be semi-automated. You'll then create your own recurring billing service (could be a cron job) that determines the amount to be charged (since it fluctuates monthly) and then calls the appropriate customer profile and charges them that amount. No human interaction required.

Otherwise no payment gateway offers any service that allows for automated flexible payments since it has no way to know what the payments will be ahead of time.