A mountable Rails engine to create a payment server that can handle the money in your Bitcoin ecosystem

M-Pesa SDK for Ruby is an unofficial library aiming to help businesses integrating every M-Pesa operations to their Ruby applications.

Provides Paypal web payments standard support to nimbleshop

This is a Ruby library for integrating with SagePay. SagePay is a payment gateway for accepting credit card payments through your web app.

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

A rails plugin to add an active_merchant patch for china online payment platform

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

Ruby library for Nihaopay payment gateway API

simple gem for payanyway payment gateway

Payu (polish payment service) rails engine.

Accept payments using Beanstream and Ruby

Kill Bill payment plugin for Cybersource.

Spreedly is a cloud service that allows you to store credit cards and run transactions against them, enabling you to accept payments on your website while avoiding all liability and PCI compliance requirements.

Paid is the programmatic way to manage payments. See https://paidlabs.com for details.

Payments platform for marketplaces

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

Validation for Dutch bank account numbers, Citizen Service Numbers (BSN) and Payment reference

[DEPRECATED] Ruby SDK for interacting with the Trolley API, now deprecated. New Gem: https://rubygems.org/gems/trolley

Authorize.Net SDK includes standard payments, recurring billing, and customer profiles

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