A gem for e-payment systems API's and SCI's

A think wrapper of PayDesign API for convenience store payment, pay-easy and some more.

PayU SDK in Ruby for Payments API and Reports API

Payzen payment form generator

Peakium allows global, flexible recurring payments. See https://peakium.com for details.

Postino allows you to generate Italian postal payment forms in PDF format using Prawn.

TPaga Payment Gateway API [Learn about TPaga](https://tpaga.co) [More information about this library] (http://tpaga.co/docs)

API Wrapper for Stone Payments

The PayPal REST SDK provides Ruby APIs to create, process and manage payment.

Module for Stripe payment functionality in the Trado Ecommerce platform.

Moncash sdk to perform and retieve payment to moncash api

With moolah.io you can process payments in-store and online. Rmoolah is a API wrapper for moolah.io