tonglian-ruby-sdk is a light and easy to use gem. It could help developers quickly make use of Tonglian Payment Gateway's services.

OffsitePayments for Allpay

Affirm payment Gateway for Spree

Adds PayPal Express as a Payment Method to Spree Commerce

A Ruby client library for integrating with Kody payment APIs using gRPC

Payment method for onpay.ru

Ruby client library for the Contact Payment System API

Provides Paypal payment integration for spree

Midtrans payment gateway for Spree framework

Additional Payment Gateways for Spree Commerce using Veritrans

Handles payment processing with STAPI

subsify is a Ruby client for the Subsify Subscription Payment API.

Wrapper around stripe.js to make Opal payments easier

A simple payu payment gem

Ruby API Library for Vesta's vSafe Payment Gateway.

Spree Commerce PayPal Checkout payment gateway integration

API wrapper for Sinopac E-Commerce Payment APIs.

Sends payments

Xfers is the easiest way to accept payments online in South East Asia. See https://xfers.com for details.

Basic API client for President Collect Payment Service