diff --git a/python/packages/autogen-studio/autogenstudio/web/serve.py b/python/packages/autogen-studio/autogenstudio/web/serve.py
index 8dbbf1823328..7e98ae0801b6 100644
--- a/python/packages/autogen-studio/autogenstudio/web/serve.py
+++ b/python/packages/autogen-studio/autogenstudio/web/serve.py
@@ -1,6 +1,8 @@
 import os
 
 from fastapi import FastAPI
+from pydantic import BaseModel
+from typing import Any
 
 from ..datamodel import Response
 from ..teammanager import TeamManager
@@ -20,8 +22,26 @@ async def predict(task: str):
             raise ValueError("AUTOGENSTUDIO_TEAM_FILE environment variable is not set")
 
         result_message = await team_manager.run(task=task, team_config=team_file_path)
-        response.data = result_message
+        response.data = force_model_dump(result_message)
     except Exception as e:
         response.message = str(e)
         response.status = False
     return response
+
+def force_model_dump(obj: Any) -> Any:
+    """
+    Force dump all fields of a Pydantic BaseModel, even when inherited
+    from ABCs as BaseAgentEvent and BaseChatMessage.
+    """
+    if isinstance(obj, BaseModel):
+        output = {}
+        for name, _field in obj.model_fields.items():
+            value = getattr(obj, name)
+            output[name] = force_model_dump(value)
+        return output
+    elif isinstance(obj, list):
+        return [force_model_dump(item) for item in obj]
+    elif isinstance(obj, dict):
+        return {k: force_model_dump(v) for k, v in obj.items()}
+    else:
+        return obj
\ No newline at end of file
diff --git a/python/packages/autogen-studio/tests/test_serve.py b/python/packages/autogen-studio/tests/test_serve.py
new file mode 100644
index 000000000000..ad8219f0181a
--- /dev/null
+++ b/python/packages/autogen-studio/tests/test_serve.py
@@ -0,0 +1,65 @@
+import os
+from fastapi.testclient import TestClient
+from autogenstudio.web.serve import app
+from autogen_agentchat.messages import TextMessage
+from autogen_agentchat.base import TaskResult
+from autogenstudio.datamodel.types import TeamResult
+
+client = TestClient(app)
+
+def test_predict_success(monkeypatch):
+    monkeypatch.setenv("AUTOGENSTUDIO_TEAM_FILE", "test_team_config.json")
+
+    async def mock_run(*args, **kwargs):
+        assert kwargs.get('task') == 'test_task', f"Expected task='test_task', got {kwargs.get('task')}"
+        text_message = TextMessage(
+            source="agent1",
+            content="Mission accomplished.",
+            metadata={"topic": "status"}
+        )
+        task_result = TaskResult(messages=[text_message], stop_reason="test")
+        team_result = TeamResult(
+            task_result=task_result,
+            usage="3 tokens",
+            duration=0.45
+        )
+        return team_result
+    
+    from autogenstudio.web.serve import team_manager
+    team_manager.run = mock_run
+    
+    response = client.get("/predict/test_task")
+    assert response.status_code == 200
+    data = response.json()
+    assert data["status"] is True
+    assert data["message"] == "Task successfully completed"
+    # It should be able to serialize the message content
+    assert data["data"]['task_result']['messages'][0]['content'] == "Mission accomplished."
+
+def test_predict_missing_env_var():
+    # Ensure environment variable is not set
+    if "AUTOGENSTUDIO_TEAM_FILE" in os.environ:
+        del os.environ["AUTOGENSTUDIO_TEAM_FILE"]
+    
+    response = client.get("/predict/test_task")
+    assert response.status_code == 200
+    data = response.json()
+    assert data["status"] is False
+    assert "AUTOGENSTUDIO_TEAM_FILE environment variable is not set" in data["message"]
+
+def test_predict_team_manager_error(monkeypatch):
+    monkeypatch.setenv("AUTOGENSTUDIO_TEAM_FILE", "test_team_config.json")
+    
+    # Mock the team_manager.run method to raise an exception
+    async def mock_run(*args, **kwargs):
+        assert kwargs.get('task') == 'test_task', f"Expected task='test_task', got {kwargs.get('task')}"
+        raise Exception("Test error")
+    
+    from autogenstudio.web.serve import team_manager
+    team_manager.run = mock_run
+    
+    response = client.get("/predict/test_task")
+    assert response.status_code == 200
+    data = response.json()
+    assert data["status"] is False
+    assert data["message"] == "Test error" 
\ No newline at end of file