Creates buttons to manage paying with amazon payments. Can be used for direct payments or merchant payments

Adds Alipay Payment as a Payment Method to Spree Commerce

Rails Payment Sandbox helps developers test payment flows locally without hitting real gateways. It simulates Stripe, Razorpay, PayPal, and provides fake transactions with random statuses.

The gem abstracts away the low-level details of the API, providing a simple and intuitive interface for sending payment requests, checking payment status, and managing payment callbacks

The Payments API file handles creating and processing payments, including card authorization, fraud checks, and settlements

Authorize.Net SDK includes standard payments, recurring billing, and customer profiles

Implemention of Payments Initiation (ISO 20022)

A library to interface with Fawry's payment gateway API (charge, refund, payment status, service callback).

Robokassa is payment system, that provides a single simple interface for payment systems popular in Russia. If you have customers in Russia you can use the gem. The first thing about this gem, is that it was oribinally designed for spree commerce. So keep it in mind.

Lightweight wrapper for Paypal's Adaptive Payments API

Ruby client library for the GMO Payment Platform.

Integration with polish payment method: Przelewy24

Client for ReCharge Payments recurring payments API for Shopify

acts_as_payment is a rails plugin that enables you to work with bills.

Instamojo Ruby library - Assists you to programmatically create, edit and delete offers on Instamojo. Also supports listing, updation and details of Payments, Payments Requests and Refunds.

A rails plugin to add an active_merchant patch for china online payment platform

Kill Bill Plugin to test the payment plugin api.

Ruby client for Moneybookers Automated Payment Interface and Payment Gateway

CCCAvenue Payment Gateway - CCAvenue billing page (Non-Seamless)

Adds Bank Transfer payment method option during checkout.