SignedApi gem offers easy way to make your web APIs secure by using secret key based signature authentication.

Signature authentication

This gem make authentication very simple

Basic token based authentication for APIs

Simple and safe token authentication library that uses Rails' `authenticate_or_request_with_http_token` method

Simple implementation of authentication for Rails

Makes it possible to protect selected Sinatra routes with HTTP Basic Authentication

A Rails engine for quickly adding SMS authentication to a Rails API

SMS Authentication

Apppend rows to a Google Sheets spreadsheet. Uses Google Sheets API v4 with server-to-server authentication

Provides an authentication solution for ruby applications being used at the Vienna University of Technology

simple twitter authentication wrapper

Simple, transparent, and powerful middleware authentication.

Super simple authentication system for Rails, using username, email and password.

User management and authentication for your Ruby app.

A warden strategy for easy OAuth2 rack based authentication

Authentication / Authorization library for Watermark apps

Simple prototype for new way of authentication

Ruby WebHDFS/HttpFs client with krb5 authentication

Manages git repositories, authentication information for OpenSSH and authorization.