diff --git a/lib/api/internal.rb b/lib/api/internal.rb
index 576b64d..0a0f55b 100644
--- a/lib/api/internal.rb
+++ b/lib/api/internal.rb
@@ -32,6 +32,12 @@ module Gitlab
         key = Key.find(params[:key_id])
         present key.user, with: Entities::User
       end
+
+      get "/check" do
+        {
+          api_version: '3'
+        }
+      end
     end
   end
 end
--
libgit2 0.21.2