Launch a landing page on Heroku in less than 10 minutes with JohnHenry. This gem sets up bootstrap and provides Bootstrapped user management pages with Devise. JohnHenry also includes a payment form that works with Stripe and is ready to go immediately.

A Ruby gem wrapper for the pin-payments (pinpayments.com) API

Quickly build an online store with carts, orders, automatic email receipts and payment collection via Stripe, StripeConnect, PayPal and Moneris.

Easy online payments with eWAY and the eWAY Rapid Ruby gem.

Payment Method for Skrill Transactions for Spree

A rails plugin to add active_merchant patch for Taiwan payment

Add wallet payment method functionality to spree

[Deprecated] It is recommended to use paypal-server-sdk instead. The PayPal Permission SDK provides Ruby APIs for developers to request and obtain permissions from merchants and consumers, to execute APIs on behalf of them. The permissions include variety of operations from processing payments to...

TrueLayer provides instant access to open banking to easily integrate next-generation payments and financial data into any app.This helps easily sign TrueLayer API requests using a JSON web signature.

Implementation of Loan/Mortgage functions in Ruby language. APR function and PMT function. In calculations it includes implementation of bank fee, marketplace fee, fees for each payment to provide the most precise calculation at very high speed.

Spreedly is a cloud service that allows you to store credit cards and run transactions against them, enabling you to accept payments on your website while avoiding all liability and PCI compliance requirements.

Spree extension for integration with PayPal Website Standard payment

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

This is a Ruby library for integrating with SagePay. SagePay is a payment gateway for accepting credit card payments through your web app.

PayPal Express Checkout API Client for Instance, Recurring and Digital Goods Payment.

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.

[Deprecated] It is recommended to use paypal-server-sdk instead. The PayPal Adaptive Payments SDK provides Ruby APIs to create, process and manage simple and complex (parallel and chained) payments, and pre-approvals using the Adaptive Payments API.

Accept online payments, create a Platform, and pay out to your sub-entities, sellers and service providers.

iDEAL payment gateway (see http://www.ideal.nl and http://www.activemerchant.org/)

Radiant Shop is an attempt at a simple but complete store. It includes Products, Categories, Orders and Credit Card Payments