Laravel Sanctum SPA Authentication not working in Api routes

I am using Laravel Sacntum Laravel's built-in cookie based session authentication to make some api's. how ever i noticed the auth:sanctum middleware works when we call it inside the web routes but it wont run properly in the api routes. sending token not available message.

//Web.php routes

Route::middleware('auth:sanctum')->get('stats', StatController::class); - works

//Api.php routes

Route::middleware('auth:sanctum')->get('stats', StatController::class); doesnt work

I added this part too the boostrap/app.php as well

$middleware->statefulApi();

Is there anything else to check . thanks