diff --git a/src/isn.abstract/ApiConfig.cs b/src/isn.abstract/ApiConfig.cs
index 1716875..907b0e6 100644
--- a/src/isn.abstract/ApiConfig.cs
+++ b/src/isn.abstract/ApiConfig.cs
@@ -17,5 +17,6 @@ namespace isnd.Entities
         public const string AutoComplete = "autocomplete";
         public const string CatalogLeaf = "catalog-leaf";
         public const string Delete = "delete";
+        public const string Registration = "registration";
     }
-}
\ No newline at end of file
+}
diff --git a/src/isnd/Controllers/Packages/PackagesController.Catalog.cs b/src/isnd/Controllers/Packages/PackagesController.Catalog.cs
index a1a7f3c..d5a2357 100644
--- a/src/isnd/Controllers/Packages/PackagesController.Catalog.cs
+++ b/src/isnd/Controllers/Packages/PackagesController.Catalog.cs
@@ -1,13 +1,6 @@
-using System.Data.Common;
-using System.Linq;
 using System.Threading.Tasks;
-using isnd.Services;
 using isnd.Entities;
 using Microsoft.AspNetCore.Mvc;
-using System.Collections.Generic;
-using NuGet.Versioning;
-using isnd.Data.Packages.Catalog;
-using isnd.Data.Catalog;
 using Isn.Abstract;
 
 namespace isnd.Controllers