diff --git a/app/Http/Controllers/SubdomainController.php b/app/Http/Controllers/SubdomainController.php
new file mode 100644
index 000000000000..73733e382c7c
--- /dev/null
+++ b/app/Http/Controllers/SubdomainController.php
@@ -0,0 +1,39 @@
+<?php
+/**
+ * Invoice Ninja (https://invoiceninja.com).
+ *
+ * @link https://github.com/invoiceninja/invoiceninja source repository
+ *
+ * @copyright Copyright (c) 2021. Invoice Ninja LLC (https://invoiceninja.com)
+ *
+ * @license https://opensource.org/licenses/AAL
+ */
+
+namespace App\Http\Controllers;
+
+use App\Libraries\MultiDB;
+
+class SubdomainController extends BaseController
+{
+
+    public function __construct()
+    {
+
+    }
+
+    /**
+     * Display a listing of the resource.
+     *
+     * @return void
+     */
+    public function index()
+    {
+        $subdomain_exists = MultiDB::findAndSetDbByDomain(request()->input('subdomain'));
+
+        if($subdomain_exists)
+            return response()->json(['message' => 'Domain not available'] , 401);
+
+        return response()->json(['message' => 'Domain available'], 200);
+    }
+
+}
diff --git a/routes/api.php b/routes/api.php
index 26136e5009ee..7038fa7856ee 100644
--- a/routes/api.php
+++ b/routes/api.php
@@ -24,6 +24,7 @@ Route::group(['middleware' => ['api_secret_check', 'email_db']], function () {
 });
 
 Route::group(['middleware' => ['api_db', 'token_auth', 'locale'], 'prefix' => 'api/v1', 'as' => 'api.'], function () {
+    Route::post('check_subdomain', 'SubdomainController@index')->name('check_subdomain');
     Route::get('ping', 'PingController@index')->name('ping');
     Route::get('health_check', 'PingController@health')->name('health_check');