diff --git a/lightrag/api/lightrag_server.py b/lightrag/api/lightrag_server.py
index 0839c1f8..44443440 100644
--- a/lightrag/api/lightrag_server.py
+++ b/lightrag/api/lightrag_server.py
@@ -1115,6 +1115,7 @@ def create_app(args):
         ("relationships_vdb", rag.relationships_vdb),
         ("chunks_vdb", rag.chunks_vdb),
         ("doc_status", rag.doc_status),
+        ("llm_response_cache", rag.llm_response_cache),
     ]
 
     async def index_file(file_path: Union[str, Path]) -> None: