ActivePayment is an abstraction layer for different Payment-Interfaces (XML, JSON)

This gem make it easier to implement payment system with Paidy

ActiveTiger allows you to simply add payment processing to your application using Tiger Payment Solutions

A Ruby Interface to Alipay Payment Gateway. Unofficial.

A simple gem to calculate amortizing loan payments, as part of training at Samyukti

This is currently a dummy until a public beta is over

Alternative Payments ruby gem sdk. Accept local payments from all over the world

A RubyGem that interfaces with the Authorize.net payment gateway

This gem extends the activemerchant offsite_payments gem providing integration of Przelewy24.

Ruby Wrapper to process payments via any installed Bygpay Payment Gateway

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

THIS GEM IS STILL IN DEVELOPMENT STAGE. Find documentation here: https://github.com/leandrosardi/invoicing_payments_processing.

Beyonic.com makes enterprise payments to mobile easy. Details: http://beyonic.com

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