diff --git a/src/Infrastructure/BotSharp.OpenAPI/Controllers/ConversationController.cs b/src/Infrastructure/BotSharp.OpenAPI/Controllers/ConversationController.cs
index 13fb51990..7f12eec20 100644
--- a/src/Infrastructure/BotSharp.OpenAPI/Controllers/ConversationController.cs
+++ b/src/Infrastructure/BotSharp.OpenAPI/Controllers/ConversationController.cs
@@ -371,9 +371,11 @@ await conv.SendMessage(agentId, inputMsg,
             {
                 response.Text = !string.IsNullOrEmpty(msg.SecondaryContent) ? msg.SecondaryContent : msg.Content;
                 response.Function = msg.FunctionName;
+                response.MessageLabel = msg.MessageLabel;
                 response.RichContent = msg.SecondaryRichContent ?? msg.RichContent;
                 response.Instruction = msg.Instruction;
                 response.Data = msg.Data;
+                response.AdditionalMessageWrapper = ChatResponseWrapper.From(msg.AdditionalMessageWrapper, conversationId, inputMsg.MessageId);
             });
 
         var state = _services.GetRequiredService<IConversationStateService>();
@@ -426,11 +428,13 @@ await conv.SendMessage(agentId, inputMsg,
             async msg =>
             {
                 response.Text = !string.IsNullOrEmpty(msg.SecondaryContent) ? msg.SecondaryContent : msg.Content;
+                response.MessageLabel = msg.MessageLabel;
                 response.Function = msg.FunctionName;
                 response.RichContent = msg.SecondaryRichContent ?? msg.RichContent;
                 response.Instruction = msg.Instruction;
                 response.Data = msg.Data;
                 response.States = state.GetStates();
+                response.AdditionalMessageWrapper = ChatResponseWrapper.From(msg.AdditionalMessageWrapper, conversationId, inputMsg.MessageId);
 
                 await OnChunkReceived(Response, response);
             });
diff --git a/src/Infrastructure/BotSharp.OpenAPI/ViewModels/Conversations/Response/ChatResponseModel.cs b/src/Infrastructure/BotSharp.OpenAPI/ViewModels/Conversations/Response/ChatResponseModel.cs
index 4d1492007..37db30841 100644
--- a/src/Infrastructure/BotSharp.OpenAPI/ViewModels/Conversations/Response/ChatResponseModel.cs
+++ b/src/Infrastructure/BotSharp.OpenAPI/ViewModels/Conversations/Response/ChatResponseModel.cs
@@ -1,7 +1,46 @@
 using BotSharp.Abstraction.Conversations.Dtos;
+using System.Text.Json.Serialization;
 
 namespace BotSharp.OpenAPI.ViewModels.Conversations;
 
 public class ChatResponseModel : ChatResponseDto
 {
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    [JsonPropertyName("additional_message_wrapper")]
+    public ChatResponseWrapper? AdditionalMessageWrapper { get; set; }
 }
+
+public class ChatResponseWrapper
+{
+    [JsonPropertyName("sending_interval")]
+    public int SendingInterval { get; set; }
+
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    [JsonPropertyName("messages")]
+    public List<ChatResponseModel>? Messages { get; set; }
+
+    public static ChatResponseWrapper? From(ChatMessageWrapper? wrapper, string conversationId, string? messageId = null)
+    {
+        if (wrapper == null)
+        {
+            return null;
+        }
+
+        return new ChatResponseWrapper
+        {
+            SendingInterval = wrapper.SendingInterval,
+            Messages = wrapper?.Messages?.Select(x => new ChatResponseModel
+            {
+                ConversationId = conversationId,
+                MessageId = messageId ?? x.MessageId,
+                Text = !string.IsNullOrEmpty(x.SecondaryContent) ? x.SecondaryContent : x.Content,
+                MessageLabel = x.MessageLabel,
+                Function = x.FunctionName,
+                RichContent = x.SecondaryRichContent ?? x.RichContent,
+                Instruction = x.Instruction,
+                Data = x.Data,
+                IsAppend = true
+            })?.ToList()
+        };
+    }
+}
\ No newline at end of file