diff --git a/DI/XDIHelperExtension.cs b/DI/XDIHelperExtension.cs
index 5ccef03..87eaf59 100644
--- a/DI/XDIHelperExtension.cs
+++ b/DI/XDIHelperExtension.cs
@@ -495,6 +495,12 @@ namespace xAiModels.DI
             #endregion
             #endregion
 
+            //
+            // Data Provider ...
+            services.Add(
+                new ServiceDescriptor(typeof(IXAiDataProvider), typeof(XAiDataProvider), lifeTime)
+            );
+
             //
             Log("Service Regitration Succeed ...");
         }