laravel : how to run class auto

I have an api class and i want that when the user logged in system this class should run auto and return true or false. i don't want to call this to every class.

i don't want this :

$api = new Api();

what can i do for this or it could be that :

$ret = Api::run(); // this will run auto when the user logged in but run only one time not run every redirect or refresh

and i want use it like this:

return View('api.show')->withApi($ret);

Should this return a bool variable and use every class which i want to use it in?

via Chebli Mohamed