The finrb library (forked from the finance gem) provides a Ruby interface for financial calculations/modeling. Working with interest rates, Mortgage amortization, Cashflows (NPV, IRR, etc.) and other basic utilities.

Easy way tp access data from finviz.com.

A ruby client that parses responses from the fipe web api and let you use all sugar data from there

Consulte a FipeApi.

Rack-based, Passenger-compatible, with pretty URLs and simple HTTP API for managing content

Adds improvements to HTML syntax for id and class attributes

Verify ID Token

Remote Push Notification to iOS/Android via Firebase.

Firebase Ruby Auth

Simple little cache warmer.

prioritize values of fallback methods

Financial date class for ruby

fiscal year, quarter, year to date calculate

Fishplate is a library allowing running ActiveRecord without Railties.

Handle Fitbit subscription notifications within a Rails or Rack app, and pass them on via ActiveSupport::Notifications.

handles FIT files

A simple tool convert Fixtures into Factory Girl

When users input fields in all uppercase or all lowercase, this will titlecase it.

Client for the fixer application.

A standalone library for managing test fixture data