Hashie2 + ActiveModel 3, offering declared properties, validations, JSON serialization/deserialization

Use the Money gem and ActiveRecord's composed_of to store fields wich contains currency data in a safe and clean way.

Gets information about stuff.

A pure ruby hbci banking client

SOAP Wrapper for Heartland Portico payment gateway

Use a CSV file for improved forecasting with hledger

Easily convert hashes to Ruby objects. Originally developed at www.onthebeach.co.uk.

ING API Client

Instant quote providers gem.

Internal Affairs integration helper

A stupid and simple invoice generator

SDK for Iugu Platform Applications

A Jekyll plugin for dealing with money. Because we all have to at some point.

A Jekyll plugin for dealing with money. Enhanced from the original jekyll-money gem.

Active Merchant is a simple payment abstraction library used in and sponsored by Shopify. It is written by Tobias Luetke, Cody Fauser, and contributors. The aim of the project is to feel natural to Ruby users and to abstract as many parts as possible away from the user to offer a consistent interface across all supported gateways.

Kill Bill payment plugin for Bitpay.

Kill Bill payment plugin for BraintreeBlue.

Kill Bill notification plugin for ChartMogul.

Kill Bill payment plugin for Cybersource.

Kill Bill payment plugin for First Data e4.