How to use Auth facade inside Controller with api route?

I am accessing a PayPalController through routes in routes/api.php but when I try to check if a user is authenticated, it returns:

local.ERROR: Auth guard [api] is not defined.

PayPalController:

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
use Srmklive\PayPal\Service\Paypal;

class PayPalController extends Controller
{
    public function create(Request $request)
    {

        // both won't work
        $id = Auth::id('api');
        $id = auth('api')->user()->id;
        
    }
}

routes/api.php:

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use Illuminate\Support\Facades\Route;


Route::post('/paypal/order/create', [PayPalController::class, 'create']);