This tool will enable you to pull google+ and eventual all of its api

Provides access_token only callback phase

A Google oauth2 strategy for OmniAuth 1.0

A Google oauth2 strategy for OmniAuth 1.0

Gorgias OAuth2 strategy for OmniAuth

Official OmniAuth strategy for GoTo.

OmniAuth strategy for integrating authentication with Brazilian Gov.br using OmniAuth and OAuth2.

A Google+ Sign In OAuth2 strategy for Omniauth

Granicus Admin strategy for OmniAuth

GroupMe OAuth strategy for OmniAuth

Gust OAuth strategy for OmniAuth

OmniAuth strategy for authenticating to use Gusto’s API with OAuth 2

OmniAuth strategy for Gyazo

OmniAuth strategy for HackCentral, see https://github.com/hackcentral/omniauth-hackcentral for examples and more information.

An OmniAuth strategy for authenticating with Hack Club Auth using OAuth2.

HackID strategy for OmniAuth

OmniAuth strategies for haobtc

Harvest strategy for OmniAuth

OmniAuth (OAuth 2) strategy for hh.ru

OAuth2 strategy for the Headquarters API, by Group Buddies