Why should Client Creadentials be associated with a user in Laravel Passport?

I want to use Client Credentials to authenticate client applications to access the API.

My problem is with creating client credentials. Using php artisan passport:client requires me to enter a user_id to associate the client to that user. I don't get it. Why the client application has to be associated to a user?! Or Is there another way?

passport:client command only supports creating Password Grant Clients and Personal Grant Client. I don't think that any of them is what I need.

What I really need is to create client credentials that will only be used by the client application so authorize itself to access some APIs. How to do that?

via Chebli Mohamed