Selling Monthly Online Services [closed]

Question

I am wondering if anyone knows of a system (open source or otherwise) that will allow my clients to sell their online services per month/year/etc. In other words, the user buys a month subscription, can log in, and access anything that my clients choose for them to see.

Thanks for any help.

Answer 1

Have you heard of Spreedly? Spreedly isn't a hosted solution it's a SaaS but has a really easy to use API.

Answer 2

What about Membergate?