diff --git a/examples/api_client.py b/examples/api_client.py
index 70ec8c5492124..5f7daa14d5044 100644
--- a/examples/api_client.py
+++ b/examples/api_client.py
@@ -1,4 +1,9 @@
-"""Example Python client for vllm.entrypoints.api_server"""
+"""Example Python client for vllm.entrypoints.api_server
+NOTE: The API server is used only for demonstration and simple performance
+benchmarks. It is not intended for production use.
+For production use, we recommend vllm.entrypoints.openai.api_server
+and the OpenAI client API
+"""
 
 import argparse
 import json