Experimental library for working with GoogleCheckout. Currently in use for payment at http://peepcode.com.

A straight-forward REST API for Amazon's Flexible Payments Services.

EBANX is the market leader in e-commerce payment solutions for International Merchants selling online to Brazil

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

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

QR-bills support for swiss payments, for full documentation please refer to github repo: https://github.com/damoiser/qr-bills

Payoneer provides businesses with international money transfer services and global payments

Provides integration with the Fat Zebra internet payment gateway (www.fatzebra.com), including purchase, refund, auth, capture and recurring billing functionality.

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

This is currently a dummy until a public beta is over.

Payment Method for Skrill Transactions for Spree

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

A Ruby gem for communicating with the payment platform of Redsys

EcoCash is the easiest way to accept mobile payments online. See https://ecocash.co.zw for more details.

Simplifies generating payment requests and parsing responses from banks when using iPizza protocol.

Add wallet payment method functionality to spree

A Ruby library to make use of the payments API at http://realexpayments.com

A rails plugin to add active_merchant patch for Taiwan payment

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.