OffsitePayments for Pay2go

Checks integrity of Yandex.Money payment notification by comparing SHA of strigified params including a secret shared with Yandex.

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

Encryption in Ruby to interface with SagePay's payment gateway protocol v3.

Simple gem for Robokassa payments. This gem can work with Robokassa API.

Spree extension for integration with GoPay payment gateway.

Spree billing integration for Sisow iDeal/Bancontact/Sofort/Paypal payments

Responsible for handling referral links and all referral related operations like capture actions, show partner dashboard, payments etc.

Get a list of Federal Reserve E-Payments Routing Directory

Payment Framework focused on Authorize.net CIM for dealing with stored credit card transactions.

Activemerchant patch for china online payment platform alipay

PayUMoney.com Payment Gateway integration for ActiveMerchant

PayU.in Payment Gateway integration for ActiveMerchant

This gem make it easier to implement payment system with Paidy

Base gateway for Unlock's payment gateway integrations

A Ruby Interface to Alipay Payment Gateway. Unofficial.

This gem can help you integrate Alipay Dual-function Payment.

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

A RubyGem that interfaces with the Authorize.net payment gateway

This gem provides a Rails interface to the Amazon Simple Pay payment service.