FirstData payment plugin using ActiveMerchant for use with Lolita CMS

MoneyOnline (aka DengiOnline) is a payment system, that have a single interface for many payment providers

gitreport keeps track of your projects. It collects info about commited and pushed data, submits it to gitreport.com and provides a gorgous frontend to examine, discover and extract the data that you need to generate the payment recipes for your customers, measure your performance, find gaps and ...

Client for the Mollie API (currently iDEAL-only)

ActiveMerchant plugin for Paypal Adaptive Payments

Aprova Fácil Payment Gateway to Spree

To accommodate the SSO functionality of SallieMae Business Office Solutions Electronic Payment Gateway within a Rails applicaiton.

Package to simplify including the Cyberplus payment service into a Ruby application.

Add social payments to your business by adding a ‘Pay with Pygg’ button to your site!

iDEAL payment gateway (see http://www.ideal.nl and http://www.activemerchant.org/)

ErpInvoicing adds models and services to the CompassAE core to handle invoicing and billing functions. It includes extensions to the core ERP classes for accounts and things that are 'billable' (products, work efforts), and additional models for the invoices/items, payments and the application of...

The CompassAE Commerce Engine uses the engines that implement Parties, Products and Orders, and adds the ability to conduct commerce. It implements a pricing engine, fees, payment gateways.

Spree extension for integration with PagSeguro payment. Based on spree_pp_website_standart gem

Paiement CIC is a gem to ease credit card payment with the CIC / Crédit Mutuel banks system. It's a Ruby on Rails port of the connexion kits published by the bank.

Library for doing payments using DebiTech (DIBS)

A small sinatra server that supports all the actions Mollie iDeal API needs to make a payment. Now you can test your transactions on you local machine without having to make portforwards

Activemerchant patch for china online payment platform alipay

Payment Method for Skrill Transactions for Spree

Payment Method for USA ePay SOAP Webservice

Integration with TNS Payments Gateway