A number of fully-tested clients for interacting with all of the available postcode anywhere services, including capture, cleansing, payment validation and email validation

Ruby Implementation of the Monero Payment Request Standard. https://github.com/lukeprofits/Monero_Payment_Request_Standard

Paid is the programmatic way to manage payments. See https://paidlabs.com for details.

Payment solutions with GMO services

Parsley-Payment.js bundled for Rails Asset Pipeline

API Wrapper for Stone Payments

The PayPal REST SDK provides Ruby APIs to create, process and manage payment.

Module for Stripe payment functionality in the Trado Ecommerce platform.

Simple gem for Robokassa payments. This gem can work with Robokassa API.

Moncash sdk to perform and retieve payment to moncash api

Ruby support for Buckaroo Payment Engine 3.0

Integrate payments into your rails app easily without much effort

A uniform and simple way to create recurring payments with supported providers.

Payment gateway for USA ePay transaction

Simple Ruby library to interact with Paymentwall's Brick API

SlidePay makes it ridiculously easy to take swiped payments anywhere, on any device. Check out http://www.slidepay.com for more info.

Views to see Order, Payment and Shipment Papertrail versions

Adds the ability to view payment logs in the admin

Encryption in Ruby to interface with SagePay's payment gateway protocol v3.

simple gem for payanyway payment gateway