I'm working on a site right now and need to set up a payment system. Basically, I need to be able to charge people arbitrary amounts each month. It's not a hosting site, so there aren't any packages including b/w, space, etc. I need to be able to just say that a person has used X credits for the month, and that costs $X, and either send out an invoice, or charge their card. I've seen nice tools such as ModernBill and ClientExec, but those are geared towards hosting, and have some specific features that I don't need, and looks like I couldn't even remove. I need a pretty simple billing system that I can use with PayPal and a regular gateway. Anybody know of a system that fits my needs?

try cubecart ? or oscommerce ? am not sure this what you need as your service your providing you have kept anonymous , but if it is as you said sale X costs X$ you just add your products there and specify your paypal address as the gateway enabled and that will be it , it can be integrated with many other processorrs (both shopping carts above )

Originally posted by Lebanon
try cubecart ? or oscommerce ? am not sure this what you need as your service your providing you have kept anonymous , but if it is as you said sale X costs X$ you just add your products there and specify your paypal address as the gateway enabled and that will be it , it can be integrated with many other processorrs (both shopping carts above )

It's a server monitoring service. Think of something like alertra or websitepulse, but more specific. At any rate, the billing is a similar idea. Users can run tests on whatever intervals, and are charged for it.

Any ideas on the best way do handle billing? The best one I've come up with is to allow people to purchase credits, and charge one credit each time a test is run. This way if they want to run a test every 15 minutes or so, it costs a little bit more. But they can change it whenever they want, so they could run the test every 15 minutes for a while, then login and change it to run once an hour, and their usage/billing changes accordingly.