Active Merchant is a simple payment abstraction library used in and sponsored by Shopify. It is written by Tobias Luetke, Cody Fauser, and contributors. The aim of the project is to feel natural to Ruby users and to abstract as many parts as possible away from the user to offer a consistent interface across all supported gateways.

Stripe is the easiest way to accept payments online. See https://stripe.com for details.

Mountable rails engine which loads assets (svg files of payment icons) and provides a frozen_record model called PaymentIcon to access these through groups, names of icons, etc.

Offsite Payments is a simple abstraction library used in and sponsored by Shopify. It is written by Tobias Luetke, Cody Fauser, and contributors. The aim of the project is to put as simple an abstraction as possible on top of offsite (often called hosted) payment pages, and allow contributors to easily help services such as Shopify extend the number of offsite payment services they support.

Stripe, Paddle, and Braintree payments for Ruby on Rails apps

Resources and tools for developers to integrate Braintree's global payments platform.

Custom payments for your custom app. Api client for Payment Highway

Gem for Spree 2.1.7 which adds PXPay (paymentexpress.com - a NZ and Australian Payment Processor) as a Payment Method.

[Deprecated] It is recommended to use paypal-server-sdk instead The PayPal Merchant SDK provides Ruby APIs for processing payments, recurring payments, subscriptions and transactions using PayPal's Merchant APIs, which include Express Checkout, Recurring Payments, Direct Payment and Transactional APIs.

OffsitePayments for SmilePay 訊航科技, a Taiwan based payment gateway

Package to simplify including the Adyen payments services into a Ruby on Rails application. The package provides functionality to create payment forms, handling and storing notifications sent by Adyen and consuming the SOAP services provided by Adyen. Moreover, it contains helper methods, mocks and matchers to simpify writing tests/specs for your code.

Collection of Payment Gateways for Spree Commerce such as Stripe, Braintree, etc.

Package to simplify including the Adyen payments services into a Ruby on Rails application. The package provides functionality to create payment forms, handling and storing notifications sent by Adyen and consuming the SOAP services provided by Adyen. Moreover, it contains helper methods, mocks and matchers to simpify writing tests/specs for your code. Fork version with payouts implemented.

Accepting iDEAL, Bancontact, SOFORT Banking, Creditcard, SEPA Bank transfer, SEPA Direct debit, PayPal, KBC Payment Button, CBC Payment Button, Belfius Direct Net, paysafecard, PODIUM Cadeaukaart and ING Home’Pay online payments without fixed monthly costs or any punishing registration procedures.'

Our APIs allow easy and secure access to bank account data and payment initiation. The account data accessible are account holder's personal information, account balances, transaction history and much more. The available payment methods depend on the banks implementation but typically are domestic transfers, SEPA credit transfer, instant SEPA credit transfer, fast payment scheme, and SWIFT international payments.

The "monopay-ruby" gem simplifies Monobank payment integration in Ruby and Rails applications. It provides an intuitive interface and essential functionalities for generating payment requests, verifying transactions, handling callbacks, and ensuring data integrity. With this gem, you can quickly and securely implement Monobank payments, saving development time and delivering a seamless payment experience to your users.

The PayPal Merchant SDK provides Ruby APIs for processing payments, recurring payments, subscriptions and transactions using PayPal's Merchant APIs, which include Express Checkout, Recurring Payments, Direct Payment and Transactional APIs.

A gem to provide a ruby interface for Chase Paymentech Orbital payment gateway. It has been development thus far to meet specific ends, so not all functionality is present.

Spree extension to manage recurring payments/subscriptions using Stripe Payment Gateway.

Rails UI plugin for the payment-test plugin.