EPC QR code for SEPA payments in any format

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

Sermepa is a spanish payments gateway

Easier Rabobank OmniKassa payments

Allows easy calculation of revenue sharing by app and in-app purchases. Munges the monthly CSV reports from Google Play or Amazon Android app stores. Does Amazon currency conversions and verifies against payment amounts.

This gem implements the REST API of the Sisow payment provider.

Wrapper around the Paypal Adaptive Payments API

An engine for the Straight payment gateway software. Requires no state to be saved (that is, no storage or DB). Its responsibilities only include processing data coming from an actual gateway.

Add Ogone payments functionality to your Rails application

A soapy interface to ACH Direct's PaymentsGateway.com service.

Add support to ActiveMerchant for the Sermepa payment gateway by Servired used by many banks in Spain

A Ruby library to make use of the payments API at http://realexpayments.com

EBANX is the market leader in e-commerce payment solutions for International Merchants selling online to Brazil

Balanced is the payments platform for marketplaces.

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.

Qiwi payments solution

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.

This engine allows users to inject requests into a queue to be processed. The queue handles bank account validations, credit payments, debit orders and collecting bank statements/notify me statements.

Add support for Pagseguro checkout as a payment method.

A ruby gem for integration of your backend with the payment services provided by Efí Pay