Using this gem, you can access all of your accounts and their transaction histories or make payments to other accounts.

Integration with Balanced Payments on dune-investissement specifically with Credit Cards.

Realex is the leading payment provider for Ireland. The default gateway included in ActiveMerchant does not support 3D Secure. This implementation does, it was sponsored by Ticketsolve, written by David Rice, and released as a gem for the current version of ActiveMerchant by Arne Brasseur.

Wildland Rails Payment module.

Allows you to request information on the user profile, payment history, wallet balance, etc.

Integration with Balanced Payments on dune-investissement specifically with Bank Accounts.

DTA is a fileformat used by e.g. german banks to transmit payment informations. It has been replaced by SEPA nowadays but is still used at some places.

Doku Payment Gateway for ruby (rails)

SAKIDE encryption modul for CIB bank credit card payments

API client library for DIDWW payment gateway (UPS)

Rails integration for Tamara payment solution.

SDK Integration with Apolopag Payment

DIBS payment gateway library

OffsitePayments for Pay2go_cvs

Integrate Flow Commerce's international payments into the Workarea Commerce Platform

a mortgage calculator that enables a user to input an extra amount to current monthly payment to see in how many fewer months mortgage will be paid off.

A rails engine for working with subscriptions, selling products, and handling payments. Includes products, subscriptions, invoices, coupons, charges, etc.

Bluepay Payment Gateway API wrapper written for Ruby.

REST API Client for iPay payment gateway

This gem is used to receive and process yandex kassa payments.