Free payment verify services with data post-back
Posted on 2006-05-21
i don't know if this is the right area or not for my question, but here it is:
i need a payment verification service, something perhaps like paypal that is free.
i'm not real sure of paypal, or any other's limitations, but transactions need to be applied to each user's account real-time. meaning, i don't want to wait for emails from said pay service and manually apply changes to the user's account.
the way to overcome this is with a post-back from the pay service. when the user completes a transaction, "accept/decline" data is sent back to a web service on my server so that changes can be made real-time and automatic.
what are the best known services that support options like this? can you explain your answers a bit?