This gem helps to integrate RBK Money payments into Ruby on Rails applications

An API for using the Amazon Flexible Payment Service (FPS) - updated for version 2008-09-17 of the API.

Ruby gem for Rent$ payment Gateway & Intermediary

Command line client for Ripple payment platform

Provides an interface to GoldenPay online payment processing system.

Easy validation and processing of Paypal IPN payments

Mock payment framework

Accept bitcoin payments on your Spree store with Coinbase.

Adds Komerci as a Payment Method to Spree Commerce

Aprova Fácil Payment Gateway to Spree

Add Payment GayeWay GGE4

OffsitePayments for Allpay

Affirm payment Gateway for Spree

Adds PayPal Express as a Payment Method to Spree Commerce

Payment method for onpay.ru

Midtrans payment gateway for Spree framework

Additional Payment Gateways for Spree Commerce using Veritrans

Handles payment processing with STAPI

subsify is a Ruby client for the Subsify Subscription Payment API.

Wrapper around stripe.js to make Opal payments easier