These functions tell you whether a credit card number is self-consistent using known algorithms for credit card numbers. All non-integer values are removed from the string before parsing so that you don't have to worry about the format of the string.

Ruby interface for the Payment Online Direct Connect API

Active Merchant is a simple payment abstraction library used in and sponsored by Shopify. It is written by Tobias Luetke, Cody Fauser, and contributors. The aim of the project is to feel natural to Ruby users and to abstract as many parts as possible away from the user to offer a consistent inter...

The SCAI interface is used when the merchant wishes to keep the acquirer on her/his own website for the whole duration of the transaction (client payment details transits through *both* the merchant site and the saferpay database ) whereas VT implies a redirect to the saferpay site. == FEATURES/...

provides credit card payments through Cardia

ruby-paypal is a lightweight wrapper for the PayPal Name-Value Pair API providing: - direct payments - subscription and recurring payments

== DESCRIPTION: Experimental library for working with GoogleCheckout. Currently in use for payment at http://peepcode.com.

== DESCRIPTION: Experimental library for working with GoogleCheckout. Currently in use for payment at http://peepcode.com.

acts_as_payment is a rails plugin that enables you to work with bills.

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

An API for using the Amazon Flexible Payment Service (FPS).

A library to make online payments using ABN-AMRO (Dutch bank) Internetkassa.

Ruby API for Amazon Web Services Flexible Payment Service

An experimental library for sending payment requests to Google Checkout.

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

Package to simplify including the Adyen payments services into a Ruby on Rails application. The package provides functionality to create payment forms, handling and storing notifications sent by Adyen and consuming the SOAP services provided by Adyen. Moreover, it contains helper ...

BreadMachine facilitates payment processing, including 3-D Secure, with the SecureTrading XPay gateway

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

Generate Swiss DTA payment files to extract payments from your existing application

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