omniauth-auth0 3.1.0
Auth0 is an authentication broker that supports social identity providers as well as enterprise identity providers such as Active Directory, LDAP, Google Apps, Salesforce. OmniAuth is a library that standardizes multi-provider authentication for web applications. It was created to be powerful, flexible, and do as little as possible. omniauth-auth0 is the OmniAuth strategy for Auth0.