WebPay is payment gateway service in Japan. See also https://webpay.jp/.

This engine allows users to inject requests into a queue to be processed. The queue handles bank account validations, credit payments, debit orders and collecting bank statements/notify me statements.

This library is meant to interface with PayPal's Adaptive Payment Gateway.

A Ruby gem wrapper for the pin-payments (pinpayments.com) API

Embed QuickPay's secure payments directly into your Ruby applications. Learn more at https://tech.quickpay.net

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.

Our APIs allow easy and secure access to bank account data and payment initiation. The account data accessible are account holder's personal information, account balances, transaction history and much more. The available payment methods depend on the banks implementation but typically are domestic transfers, SEPA credit transfer, instant SEPA credit transfer, fast payment scheme, and SWIFT international payments.

TrueLayer provides instant access to open banking to easily integrate next-generation payments and financial data into any app.This helps easily sign TrueLayer API requests using a JSON web signature.

Kill Bill payment plugin for Paypal Express Checkout.

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

Manage your professional association online. Membership categories, applications to join and reclassify, annual dues payments and more.

Ruby wrapper for PayGate Korea payment gateway

Radiant Shop is an attempt at a simple but complete store. It includes Products, Categories, Orders and Credit Card Payments

EPC QR code for SEPA payments in any format

Ruby library for Nihaopay payment gateway API

One-off and subscription payments for your Rails application

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

simple gem for payanyway payment gateway

Kill Bill payment plugin for Litle & Co.

The interface supports Account holder verifications, EFT payments, Debit orders, collecting statements.