diff --git a/Modules/Tag/Http/Controllers/Api/TagByNamespaceController.php b/Modules/Tag/Http/Controllers/Api/TagByNamespaceController.php
new file mode 100644
index 000000000..823bccdb3
--- /dev/null
+++ b/Modules/Tag/Http/Controllers/Api/TagByNamespaceController.php
@@ -0,0 +1,28 @@
+<?php
+
+namespace Modules\Tag\Http\Controllers\Api;
+
+use Illuminate\Http\Request;
+use Illuminate\Routing\Controller;
+use Modules\Tag\Repositories\TagRepository;
+use Modules\Tag\Transformers\TagTransformer;
+
+class TagByNamespaceController extends Controller
+{
+    /**
+     * @var TagRepository
+     */
+    private $tag;
+
+    public function __construct(TagRepository $tag)
+    {
+        $this->tag = $tag;
+    }
+
+    public function __invoke(Request $request)
+    {
+        $availableTags = $this->tag->allForNamespace($request->get('namespace'));
+
+        return response()->json(TagTransformer::collection($availableTags));
+    }
+}
diff --git a/Modules/Tag/Http/apiRoutes.php b/Modules/Tag/Http/apiRoutes.php
new file mode 100644
index 000000000..7dd5f48bd
--- /dev/null
+++ b/Modules/Tag/Http/apiRoutes.php
@@ -0,0 +1,10 @@
+<?php
+
+use Illuminate\Routing\Router;
+
+/** @var Router $router */
+$router->get('tags/namespace', [
+    'as' => 'api.tag.tag.by-namespace',
+    'uses' => 'TagByNamespaceController',
+    'middleware' => 'token-can:tag.tags.index',
+]);
diff --git a/Modules/Tag/Providers/RouteServiceProvider.php b/Modules/Tag/Providers/RouteServiceProvider.php
index e19f6e58d..108bccfc0 100644
--- a/Modules/Tag/Providers/RouteServiceProvider.php
+++ b/Modules/Tag/Providers/RouteServiceProvider.php
@@ -33,6 +33,6 @@ protected function getBackendRoute()
      */
     protected function getApiRoute()
     {
-        return false;
+        return __DIR__ . '/../Http/apiRoutes.php';
     }
 }