How to make csrf protection for api requests?

Question

Laravel

Hi, tell me, how to make protection from csrf for API routes?
I have a nuxt SPA application on the front, with authorization via api Route::group(['middleware' => 'auth:api'])
Everything is clear for the admin - when authorizing by login and password, he receives an api_token, which I save in the session
But how to be there I want to make a form that the guest must fill out, without authorization at all? How to make protection from csrf?
Should I make some kind of ajax request to get the csrf token or what?

Answer 1

CSRF has nothing to do with it. It's not made for antispam sake
Antispam - I hope you highlighted that word above.

Answer 2

Can skip cross-domain requests only from the domain on which the front is spinning? If not suitable, then make such an intermediary only for the form route