Credit card payment gateway for SaaS (pay per use)

Question

Hi, We would like: 1. Get customer payment details (credit card) once upon registration 2. Store it in a 3rd party site and just get a token (no PCI compliance issues) 3. Charge monthly per use (the amount will be changed each month). 4. We prefer not to email invoices each month for customer manual payment but just debit the credit card.

It seems that Amazon FPS, Google Checkout, and Paypal are not suitable for all the above, and I would like to have your advise in case you have similar requirements and experience. Thanks, Avi.

Answer 1

I gave a lot of answers here:

http://stackoverflow.com/questions/1780538/minimizing-pci-compliance-when-my-checkout-flow-has-a-confirmation-page

Though the accepted answer doesn't meet the requirements stated in the question.