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

Simple implementation of authentication for Rails

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

Basic token based authentication for APIs

This gem make authentication very simple

Signature authentication

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

Users and Authentications service

Central Authentication Service for Reviewed.com

Simple Google authentication.

Rack authentication middleware

Simple HTTP proxy which adds Conjur authentication headers

Rack webmoney authentication

SimpleAuth HMAC authentication

Rack Middleware for OAuth Authorization and Authentication via/twitter

OAuth Echo authentication by a rack middleware

a Rack module for testing NTLM Authentication in an HTTP client

A warden/sinatra mini-app providing authentication and user management for any rack-based framework.

JWT-based token authentication middleware for Rack.

rack-auth-ldap : provide LDAP authentication for Rack middelware