diff --git a/mem0/client/main.py b/mem0/client/main.py
index 2e79eef2ae..2de59cc2a7 100644
--- a/mem0/client/main.py
+++ b/mem0/client/main.py
@@ -94,7 +94,7 @@ def __init__(
     def _validate_api_key(self):
         """Validate the API key by making a test request."""
         try:
-            response = self.client.get("/v1/memories/", params={"user_id": "test"})
+            response = self.client.get("/v1/ping/")
             response.raise_for_status()
         except httpx.HTTPStatusError:
             raise ValueError("Invalid API Key. Please get a valid API Key from https://app.mem0.ai")