Laravel Passport provides OAuth2 server support to Laravel.

OAuth 2.0 Token Introspection implementation for extending Laravel Passport (RFC 7662)

Laravel 5.3 Auth with MongoDB and able to integrate with Passport user_id foreign key

Laravel Passport provides OAuth2 server support to Laravel and use mongodb.

Laravel Passport provides OpenID Connect server support to Laravel.

Laravel Passport provides OAuth2 server support to Laravel with MongoDB Jenssegers.

Laravel Passport RethinkDB provides OAuth2 server support to Laravel with RethinkDB adapter.