Providers: Yahoo, Google, OpenExchangeRates

A basic library to retrieve and convert currency

Currency exchanger gem

Ruby wrapper for currencylayer by apilayer. This gem depends on the apilayer gem, which provides a common connection-interface to various services of apilayer.net (such as currencylayer and vatlayer). See https://currencylayer.com/ and https://apilayer.com/ for more details.

A gem that calculates the historical exchange rate using published rates from currencylayer.com. Compatible with the money gem.

Provides listing of currency that you may need in your ruby applications.

Operate with currencies by your defined rates

Currency manager for Rails 5

**Very preliminary, not currently recommended for use**

Parse strings formatted as currencies

Converts currencies and accepts conversion rates

A simple gem to parse and fetch currency rates from different websites.

A ruby gem to convert currencies to different units.

A gem to get the current exchange rate.

This gem uses real-time data and conversion rates provided by x-rates.com

Track Current Objects

Small gem to work with list of astronauts currently in space. Raw JSON data is available, along with a few methods for accessing specific portions of the data and print out a formatted list.

Adds current_domain helper method to ActionController::Base

Do you need to keep track of a current user, account, page, etc? The current_object gem does just that.

A ruby stock price & option chain crawler