diff --git a/litellm/proxy/auth/master_key_policy.py b/litellm/proxy/auth/master_key_policy.py
index 0d4bb0bde4b..0386461382d 100644
--- a/litellm/proxy/auth/master_key_policy.py
+++ b/litellm/proxy/auth/master_key_policy.py
@@ -44,7 +44,7 @@ _DEPLOYMENT_MARKERS: Final = TypeAdapter(list[_DeploymentMarker])
 _ACCESS_CREDENTIAL_ROUTES: Final = (
     "/credentials",
     "/credentials/by_name/{credential_name:path}",
-    "/credentials/by_model",
+    "/credentials/by_model/{model_id}",
     "/model/info",
     "/v1/model/info",
     "/v2/model/info",
diff --git a/tests/test_litellm/proxy/auth/test_master_key_policy.py b/tests/test_litellm/proxy/auth/test_master_key_policy.py
index f8c744f6d31..863715d991e 100644
--- a/tests/test_litellm/proxy/auth/test_master_key_policy.py
+++ b/tests/test_litellm/proxy/auth/test_master_key_policy.py
@@ -85,7 +85,7 @@ def test_insecure_master_key_warning_survives_redaction():
         ("/model/unblock", "POST", None),
         ("/credentials", "GET", "access_credentials"),
         ("/credentials/by_name/my_creds", "GET", "access_credentials"),
-        ("/credentials/by_model", "GET", "access_credentials"),
+        ("/credentials/by_model/abc123", "GET", "access_credentials"),
         ("/model/info", "GET", "access_credentials"),
         ("/v1/model/info", "GET", "access_credentials"),
         ("/v2/model/info", "GET", "access_credentials"),