Beyonic.com makes enterprise payments to mobile easy. Details: http://beyonic.com

A library for handling online payments using services providing transparent redirects.

THIS GEM IS STILL IN DEVELOPMENT STAGE. Find documentation here: https://github.com/leandrosardi/invoicing_payments_processing.

Adds activemerchant gateway support for hash validation, querying transactions, and submitting payment via hosted forms

This gem helps to simplify the integration to Powerpay21 Payment gateway for Ruby applications

This gem provides a Rails interface to the Amazon Simple Pay payment service.

OffsitePayments for Pay2go_cvs

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

REST API Client for iPay payment gateway

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

A library that interact with fonePaisa payment gateway service.

Implement Redsys HMAC SHA256 signature and payment parameters handling.

API Wrapper for SinoPac FunBiz Payment

None of current gems cover advanced payments, so here we go.

This is currently a dummy until a public beta is over

Kassa24 API wrapper (online payments)

A simple gem to calculate amortizing loan payments, as part of training at Samyukti

This gem can help you integrate Alipay Dual-function Payment.

A Ruby Interface to Alipay Payment Gateway. Unofficial.

Payify is a Ruby gem that simplifies payment integration into Ruby on Rails projects.