diff --git a/openHAB.Core.Client.csproj b/openHAB.Core.Client.csproj
new file mode 100644
index 00000000..8fcc514f
--- /dev/null
+++ b/openHAB.Core.Client.csproj
@@ -0,0 +1,19 @@
+
+
+ netstandard2.0
+ 11.0
+ true
+ annotations
+ true
+ $(DefineConstants);EXPERIMENTAL
+ https://pkgs.dev.azure.com/azure-sdk/public/_packaging/azure-sdk-for-net/nuget/v3/index.json
+
+
+
+
+
+
+
+
+
+
diff --git a/src/openHAB.Common/openHAB.Common.csproj b/src/openHAB.Common/openHAB.Common.csproj
index edcfab1c..bf581cc9 100644
--- a/src/openHAB.Common/openHAB.Common.csproj
+++ b/src/openHAB.Common/openHAB.Common.csproj
@@ -8,7 +8,7 @@
-
-
+
+
diff --git a/src/openHAB.Core.Client/AutoNumberToStringConverter.cs b/src/openHAB.Core.Client/AutoNumberToStringConverter.cs
new file mode 100644
index 00000000..62df6465
--- /dev/null
+++ b/src/openHAB.Core.Client/AutoNumberToStringConverter.cs
@@ -0,0 +1,43 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Text.Json.Serialization;
+using System.Text.Json;
+using System.Threading.Tasks;
+
+namespace openHAB.Core.Client
+{
+ public class AutoNumberToStringConverter : JsonConverter