define an api group as an example

app/Http/Kernel.php

@@ -28,6 +28,10 @@ class Kernel extends HttpKernel
             \Illuminate\View\Middleware\ShareErrorsFromSession::class,
             \App\Http\Middleware\VerifyCsrfToken::class,
         ],
+
+        'api' => [
+            'throttle:60,1'
+        ],
     ];
 
     /**

app/Http/routes.php

@@ -26,6 +26,6 @@ Route::get('/', function () {
 |
 */
 
-Route::group(['middleware' => 'web'], function () {
+Route::group(['middleware' => ['web']], function () {
     //
 });