Nordea::Siirto implements requests according to Nordea Siirto protocol, which enables real time payments for select Finnish bank accounts

Spree extension for integration with GoPay payment gateway.

Ruby client to process mobile payment with Orange Money webpay API.

Enable spree store to allow payment via PAGA Gateway (an online payment solution for Africa).

This Ruby Gem is the official reference client for the CryptoWallet.com payments API. To use this, you will need the Bitcoin API key from cryptowallet.com. Go ahead, sign up :)

Provides complete access to PayPal's Adaptive Payments API

all the information about thingspace

Checkout.com payment integration.

Uses blockchain.info's json API to generate 'checkout wallets' that can be associated with sales or customers. Your are notified when payments are made in multiple ways.

A gem to to send and verify payments with Zarinpal. Zarinpal is an Iranina provider.

Red Shepherd Payments Ruby Gem

Affirm payments solution

Adds PayPal Express as a Payment Method to Spree Commerce

Cash on delivery payment method for Spree

Adds the ability to view payment logs in the admin

Views to see Order, Payment and Shipment Papertrail versions

Qiwi payments solution

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 inter...

Merchant signature calculator for Adyen (https://www.adyen.com) payments service. It is implementation of HPP HMAC (SHA-256) algorithm from Adyen documentation (https://docs.adyen.com/display/TD/HPP+HMAC+calculation).

I hope to communicate to developers of web apps, especially of those handles payment information, that they should be aware of what they trust when developing an app. This should make the app more secure and make the developers aware of when to update gems or certs.