Provides an interface to AzeriCard online payment processing system

This gem allows your Ruby (1.9.2+) or Rails (3.2+) app to quickly integrate with Culqi Payment processor. It handles Culqi's flavor of encryption, decryption and Culqi ticket creation.

Sermepa is a spanish payments gateway

Qiwi payments solution

Adyen HPP payments for Solidus Stores

A Ruby wrapper of Tenpay(财付通) Payment API

Simple rails engine to add payments to your web application using sermepa standard web tpv

Gem for use Sofort Api in Ruby. Payments and check details. SOFORT Überweisung - Sofort Api Banking

A simple gem to integrate Rails app with Webpay Interswitch, a nigerian payment gateway

Integrates the mpay24 credit card and online payment processing system into the spree web shop

WebPay is payment gateway service in Japan. See also https://webpay.jp/.

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

This gem was designed to help you to access the locaweb payment gateway.

This is currently a dummy until a public beta is over

EPC QR code for SEPA payments in any format

Kill Bill payment plugin for Paypal Express Checkout.

SystemPay is a gem to ease credit card payment with Natixis Paiements / CyberplusPaiement bank system. It's a Ruby on Rails port of the connexion kits published by the bank.

Gem using curl to post to Venmo payment gateway

PingPlusPlus is the easiest way to accept payments online. See https://pingxx.com for details.

Simple REST API for the CyberSource Global Payments Platform