iDEALv3 payment gateway (see http://www.ideal.nl)

Kaznachey payments api

Allows you to request information on the user profile, payment history, wallet balance, etc.

A Ruby wrapper for the Forte Payment REST API

Flow Method Payment Integration

REST API Client for iPay payment gateway

This product is used for managing payments under The Yandex.Checkout API For usage by those who implemented Yandex.Checkout using the API method.

Solidus extension to allow payment methods to be restricted by zones

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.

Kassa24 API wrapper (online payments)

This is currently a dummy until a public beta is over.

jquery.payment library for building credit card forms for the Rails Asset Pipeline

Nordea::Siirto implements requests according to Nordea Siirto protocol, which enables real time payments for select Finnish bank accounts

Ruby client to process mobile payment with Orange Money webpay API.

Ruby implementation of Wompi Payment transactions gateway.

Process your payment through Dragonpay API

Buckaroo payment gem for the NVP gateway

all the information about thingspace

Checkout.com payment integration.

Client for Mundipagg Payment Gateway.