diff --git a/app.py b/app.py
index 07b93b9..691e2d4 100644
--- a/app.py
+++ b/app.py
@@ -97,6 +97,18 @@ class Oas3Handler(tornado.web.RequestHandler, metaclass=ABCMeta):
         self.finish()
 
 
+class AllEntitiesHandler(AuthenticatedHandler, metaclass=ABCMeta):
+    # noinspection PyAttributeOutsideInit
+    def initialize(self, auth_provider=None):
+        super().initialize(auth_provider)
+
+    def post(self):
+        pass
+
+    def get(self):
+        pass
+
+
 class SingleEntityHandler(AuthenticatedHandler, metaclass=ABCMeta):
     # noinspection PyAttributeOutsideInit
     def initialize(self, auth_provider=None):