diff --git a/python/packages/openai/agent_framework_openai/_chat_client.py b/python/packages/openai/agent_framework_openai/_chat_client.py
index 24ca5066975..3877dbdf479 100644
--- a/python/packages/openai/agent_framework_openai/_chat_client.py
+++ b/python/packages/openai/agent_framework_openai/_chat_client.py
@@ -814,6 +814,15 @@ def _handle_request_error(self, ex: Exception) -> NoReturn:
             inner_exception=ex,
         ) from ex
 
+    @override
+    def service_url(self) -> str:
+        """Get the URL of the service.
+
+        Returns:
+            The base URL of the underlying OpenAI client, or ``"Unknown"`` if there is no client.
+        """
+        return str(self.client.base_url) if self.client else "Unknown"
+
     @override
     def _inner_get_response(
         self,
diff --git a/python/packages/openai/tests/openai/test_openai_chat_client.py b/python/packages/openai/tests/openai/test_openai_chat_client.py
index bd576e61321..181b943c5ca 100644
--- a/python/packages/openai/tests/openai/test_openai_chat_client.py
+++ b/python/packages/openai/tests/openai/test_openai_chat_client.py
@@ -215,6 +215,12 @@ def test_init(openai_unit_test_env: dict[str, str]) -> None:
     assert isinstance(openai_responses_client, SupportsChatGetResponse)
 
 
+def test_service_url() -> None:
+    client = OpenAIChatClient(model="test-model", api_key="test-key", base_url="http://localhost:1234/v1")
+
+    assert client.service_url() == "http://localhost:1234/v1/"
+
+
 def test_init_uses_explicit_parameters() -> None:
     signature = inspect.signature(OpenAIChatClient.__init__)