Using OAuth2 to authenticate wechat user when web resources being viewed within wechat(weixin) client.

OmniAuth strategy for Instagram.

OmniAuth strategy for Line

Unofficial OmniAuth OAuth2 strategy for Okta

Vkontakte OAuth2 Strategy for OmniAuth

Discord OAuth2 Strategy for OmniAuth

omniauth provider for new Microsoft Graph API

Assertion grant extension for Doorkeeper.

OAuth 2 authentication with the Entra ID API.

Stripe Connect OAuth2 Strategy for OmniAuth 1.0.

OmniAuth Oauth2 strategy for weibo.com.

Omniauth strategy for Keycloak

OmniAuth strategy for Slack

Official OmniAuth strategy for Asana.

OmniAuth provider for Microsoft Office365

A Box OAuth2 strategy for OmniAuth 1.x

OmniAuth strategy for clever.com SSO OAuth2 integration

OmniAuth OAuth2 strategy for Fitbit

OmniAuth strategy for Hubspot (borrowed heavily from @kmrshntr)

OmniAuth strategy for Smartsheet