Use the Amazon Cognito IdP with OmniAuth

Official OmniAuth strategy for Digitalocean

OmniAuth OAuth2 strategy for Douban.

Unofficial ESIA OAuth2 Strategy for OmniAuth.

Eventbrite OAuth2 strategy for OmniAuth

Foursquare OAuth strategy for OmniAuth

Integrate with Greenhouse with OmniAuth

instagram Graph OAuth2 Strategy for OmniAuth

OmniAuth strategy for LinkedIn using OpenID.

OmniAuth Strategy for Mastodon

Meetup.com authentication handler for OmniAuth

OmniAuth strategy for Naver(https://developers.naver.com)

omniauth provider for new Office365 API

Enables third-party client apps to connect to the ORCID API and access/update protected profile data

A PayPal OAuth2 strategy for OmniAuth

OmniAuth strategy for the Put.io v2 API

OAuth2 Omniauth straetgy for Quickbooks (Intuit) API.

OmniAuth strategy for RunKeeper

Square OAuth strategy for OmniAuth

Tiktok OAuth2 Strategy for OmniAuth