A Ruby client for the HBCI-compliant Hibiscus payment server.

Kill Bill payment plugin for First Data e4.

Kill Bill payment plugin for Bitpay.

An API wrapper for the inpay.com payment system

Ruby library for integrating with the MundiPagg payment web services

This gem serves as a Ruby wrapper for the NetRegistry Payment Gateway's API. Official documentation can be found at http://www.netregistry.com.au/ee-images/uploads/support/NR-ecom-gateway8.pdf. Source can be found on https://github.com/carnextnoor/net_registry

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A number of fully-tested clients for interacting with all of the available postcode anywhere services, including capture, cleansing, payment validation and email validation

Payment gateway abstraction for rack applications. Think omniauth for off-site payment.

Paid is the programmatic way to manage payments. See https://paidlabs.com for details.

RubyTML (or just RTML) is a Ruby framework for communicating with Ingenico's Incendo-based payment devices.

Payment Gateway to Paybox's services

Client gem for the PaymentSpring Gateway

Payture payment system API for sendind cheques separately from payments

Ruby client for Payments HTTP API

Simple SDK interface to create transactions for the Pay.nl payment service provider.