Are there ready-made tools for organizing an OAuth server?

Question

PHP

For the project, it is necessary to make a centralized authorization server, similar to id.tmtm.ru.
I decided to organize everything using the OAuth protocol. I wonder if there are ready-made tools for quickly organizing such a server? And in general, should you use OAuth, or try something else?

Answer 1

Depends on your project.
1. If you have one 2nd level domain and several 3rd level ones: then you can easily make a transparent session transfer between YOUR domains.
2. If you plan to give your users the ability to use their account data with other systems / resources or provide your users with some kind of API service - then yes: you need OAuth.
3. There is also an option for cross-domain data transfer via JS .