We developed internally a system for looking up invoices in a FreshBooks account and processing to a Converge merchant account.

It supports tokenization of credit card details at a per client level, allowing clients to save their payment method, and optionally choose whether to automatically process payments. At this time the “Automatic Processing” functionality is simply a check box and viewable from the admin interface to confirm who has selected it.

If you’re using FreshBooks and Converge, and would be interested in implementing this for your company to avoid paying the higher FreshBooks Payments processing fees, please reach out!