diff --git a/src/Articulate/Services/ArticulateTagService.cs b/src/Articulate/Services/ArticulateTagService.cs
index 4f3a957..6a0be17 100644
--- a/src/Articulate/Services/ArticulateTagService.cs
+++ b/src/Articulate/Services/ArticulateTagService.cs
@@ -64,5 +64,14 @@ public PostsByTagModel GetContentByTag(
                     pageSize);
             }
         }
+
+        public IEnumerable<string> GetAllCategories(
+            IMasterModel masterModel)
+        {
+            using (ScopeProvider.CreateCoreScope(autoComplete: true))
+            {
+                return _repository.GetAllCategories(masterModel);
+            }
+        }
     }
 }