diff --git a/lightrag/api/lightrag_server.py b/lightrag/api/lightrag_server.py
index 8b35e34b..e2160b12 100644
--- a/lightrag/api/lightrag_server.py
+++ b/lightrag/api/lightrag_server.py
@@ -13,13 +13,12 @@ import re
 from fastapi.staticfiles import StaticFiles
 import logging
 import argparse
-from typing import List, Any, Optional, Dict
+from typing import List, Any, Literal, Optional, Dict
 from pydantic import BaseModel
 from lightrag import LightRAG, QueryParam
 from lightrag.types import GPTKeywordExtractionFormat
 from lightrag.api import __api_version__
 from lightrag.utils import EmbeddingFunc
-from enum import Enum
 from pathlib import Path
 import shutil
 import aiofiles
@@ -626,23 +625,11 @@ class DocumentManager:
         return any(filename.lower().endswith(ext) for ext in self.supported_extensions)
 
 
-# LightRAG query mode
-class SearchMode(str, Enum):
-    naive = "naive"
-    local = "local"
-    global_ = "global"
-    hybrid = "hybrid"
-    mix = "mix"
-
-
 class QueryRequest(BaseModel):
     query: str
 
     """Specifies the retrieval mode"""
-    mode: SearchMode = SearchMode.hybrid
-
-    """If True, enables streaming output for real-time responses."""
-    stream: Optional[bool] = None
+    mode: Literal["local", "global", "hybrid", "naive", "mix"] = "hybrid"
 
     """If True, only returns the retrieved context without generating a response."""
     only_need_context: Optional[bool] = None
@@ -688,13 +675,18 @@ class InsertTextRequest(BaseModel):
     text: str
 
 
+class InsertTextsRequest(BaseModel):
+    texts: list[str]
+
+
 class InsertResponse(BaseModel):
     status: str
     message: str
 
 
-def QueryRequestToQueryParams(request: QueryRequest):
-    param = QueryParam(mode=request.mode, stream=request.stream)
+def QueryRequestToQueryParams(request: QueryRequest, is_stream: bool):
+    param = QueryParam(mode=request.mode, stream=is_stream)
+
     if request.only_need_context is not None:
         param.only_need_context = request.only_need_context
     if request.only_need_prompt is not None:
@@ -1523,7 +1515,7 @@ def create_app(args):
             logging.error(f"Error /documents/text: {str(e)}")
             logging.error(traceback.format_exc())
             raise HTTPException(status_code=500, detail=str(e))
-        
+
     @app.post(
         "/documents/file",
         response_model=InsertResponse,
@@ -1653,9 +1645,7 @@ def create_app(args):
             raise HTTPException(status_code=500, detail=str(e))
 
     @app.post(
-        "/query", 
-        response_model=QueryResponse, 
-        dependencies=[Depends(optional_api_key)]
+        "/query", response_model=QueryResponse, dependencies=[Depends(optional_api_key)]
     )
     async def query_text(request: QueryRequest):
         """
@@ -1674,7 +1664,7 @@ def create_app(args):
         """
         try:
             response = await rag.aquery(
-                request.query, param=QueryRequestToQueryParams(request)
+                request.query, param=QueryRequestToQueryParams(request, False)
             )
 
             # If response is a string (e.g. cache hit), return directly
@@ -1703,9 +1693,8 @@ def create_app(args):
             StreamingResponse: A streaming response containing the RAG query results.
         """
         try:
-            params = QueryRequestToQueryParams(request)
+            params = QueryRequestToQueryParams(request, True)
 
-            params.stream = True
             response = await rag.aquery(  # Use aquery instead of query, and add await
                 request.query, param=params
             )