With ActsAsSubscription, you can hook your model into several subscription services, such as CheddarGetter.

Required dependancy for API-Spree

A Ruby on Rails engine for running ticketing, CRM, and order management. See http://fracturedatlas.github.com/artfully_app/ for the reference implementation

Accounting sucks. Well if you are trying to do it right it does. Bean machine gives you the power of an immutable double entry accounting system through the use of a simple transfer method. The idea is to make accounting easy by breaking it into easy to follow steps. Transfer this much from this account to that account.

Adds activemerchant gateway support for hash validation, querying transactions, and submitting payment via hosted forms

Gem to integrate with Mundipagg's webservice.

This is a simple E-Commerce plugin that permits to start selling in about 10 minutes, because it takes advantage of all features of Camaleon CMS to easy management by admin panel.

Gem packaging of Catarse, a crowdfunding application.

Support for cro IPG's

Support for cro IPG's

Part of MokshaCms, Event Management Engine

Setup a fully functional e-commerce cart

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.

Eway payment Api

Flow.io is PCI compliant gateway which supports authorizations, captures, refunds and tokenization of credit cards globally.

The Forge CMS dependency gem.

The Forge CMS dependency gem Ruby 1.9.

The Forge CMS dependency gem for Ruby 2.0.

PaypalExpress integration with Funddit crowdfunding platform

A Rails engine that handles credit cards for Authorize.net and Braintree using ActiveMerchant