Whalestack SDK. Programmatically accept and settle payments in digital currencies.

Bongloy is the easiest way to accept payments online. See https://www.bongloy.com for details.

A ruby wrapper for Yapstone's Payment APIs

Allows easy calculation of revenue sharing by app and in-app purchases. Munges the monthly CSV reports from Google Play or Amazon Android app stores. Does Amazon currency conversions and verifies against payment amounts.

Kassa24 API wrapper (online payments)

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

Simple implementation for one-shot monetico payments. Generates and validates MAC parameter.

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

Client for Mundipagg Payment Gateway.

This Jekyll plugin creates paypal Encrypted Web Payments buttons and encrypts them at build time so items in your store cannot have their prices or other attributes changed in Inspect Element

There are only a few way to calculate prorations & manage recurring payments.

Use the Tester Stripped API to manage business including payment. customer, product and inventory management.

The Authorize.Net Ruby SDK is meant to offer an alternate object-oriented model of development with the Authorize.net APIs (Version 3.1). The SDK is based entirely off the name-value pair API, but performs the core payment activities (such as error handling/parsing, network communication,...

To aid Cameroon businesses to make both national and international payments using MTN and Orange Mobile Money, Paypal, Credit Card and Express Union.