Adding Stripe as a Payment Method

Hi everyone,

I downloaded the Geodirectory plugin and the Price and Payments Addon.
The plugin is wonderful and the addon is very good too.

But I want to improve it by adding another method of payment that’s not included by default.

Which is Stripe.

My idea is to create a WP plugin that hooks the functions from Geodirectory and the Price & Payments addon.

Reading the code I found out that the methods are stored inside the default WP option table, so I can add it with default WP functions.

Now I need to know how the methods are called when the payment is selected.

Is there a documentation for this addon?
Thanks in advance!