tonglian-ruby-sdk is a light and easy to use gem. It could help developers quickly make use of Tonglian Payment Gateway's services.

Adds the ability to work with the payment system pay24.

Simple wrapper to BNL e-Positivity payment gateway

TB Checkout is a shopping cart and payments system designed for use with Twice Baked and Active Merchant

A gem to implement Telipass micropayment notifications for basic payments

The alipay directly payment web&mobile gem.

Affirm payments solution

This gem allows you to interface with 2c2p payment gateway

A Ruby gem for Verifi.com's Hosted Payment Pages API.

Kill Bill payment plugin for Orbital.

Outsource your check writing and other payment services to Wells Fargo's API via this Ruby client.

Borika gem for Ruby. Borica Bank 3D Secure Internet Payments in Ruby

Spree Commerce PayPal Checkout payment gateway integration

A gem to to send and verify payments with Zarinpal. Zarinpal is an Iranina provider.

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

Gem for working with the payment system of Sberbank

Ruby wrapper for PayGate Korea payment gateway

Kill Bill payment plugin for Cybersource.

Syncs your AR models with Braintree (Payment Gateway) and offers a lightweight reoccurring billing script

Plugin that implements CompraFacil Payments.