diff --git a/backend/routes/allowlist.py b/backend/routes/allowlist.py
index 02574ca505d..5581015c510 100644
--- a/backend/routes/allowlist.py
+++ b/backend/routes/allowlist.py
@@ -48,6 +48,7 @@ BACKEND_PATH_PREFIXES: tuple[str, ...] = (
     "/cache_settings",
     "/coordination_redis/",
     "/cost_tracking",
+    "/cost_optimization/",
     "/cost/",
     "/credentials",
     "/credential",