Moodle Plugins directory: Set: Gateway Payments | Moodle.org
Gateway Payments 
A set of plugins making use of the Moodle's Payment API that allow to create a website where you can easily offer paid learning for all payment gateways.
mod_gwpayments
Provides a means of restricting access to other resources in a course by having to pay for the course module.
Access restriction to other courses can then be configured using normal availability conditions based on activity completion.
Latest release: 61 sites 29 downloads 6