diff --git a/litellm/proxy/search_endpoints/search_tool_management.py b/litellm/proxy/search_endpoints/search_tool_management.py
index fac12ebf256..c9d415c0b9a 100644
--- a/litellm/proxy/search_endpoints/search_tool_management.py
+++ b/litellm/proxy/search_endpoints/search_tool_management.py
@@ -2,7 +2,7 @@
 CRUD ENDPOINTS FOR SEARCH TOOLS
 """
 from datetime import datetime
-from typing import Any, Dict, List, Union
+from typing import Any, Dict, List, Optional, Union, cast
 
 from fastapi import APIRouter, Depends, HTTPException
 from pydantic import BaseModel
@@ -130,7 +130,7 @@ async def list_search_tools(
                         search_tool_id=None,
                         search_tool_name=tool_name,
                         litellm_params=masked_litellm_params_dict,
-                        search_tool_info=search_tool.get("search_tool_info"),
+                        search_tool_info=cast(Optional[dict], search_tool.get("search_tool_info")),
                         created_at=None,
                         updated_at=None,
                         is_from_config=True,
@@ -143,8 +143,8 @@ async def list_search_tools(
             if tool.get("search_tool_name") not in db_tool_names
         ]
 
-        for search_tool in search_tools_from_db:
-            litellm_params_dict = dict(search_tool.get("litellm_params", {}))
+        for db_tool in search_tools_from_db:
+            litellm_params_dict = dict(db_tool.get("litellm_params", {}))
             masked_litellm_params_dict = _get_masked_values(
                 litellm_params_dict,
                 unmasked_length=4,
@@ -153,12 +153,12 @@ async def list_search_tools(
 
             search_tool_configs.append(
                 SearchToolInfoResponse(
-                    search_tool_id=search_tool.get("search_tool_id"),
-                    search_tool_name=search_tool.get("search_tool_name", ""),
+                    search_tool_id=cast(Optional[str], db_tool.get("search_tool_id")),
+                    search_tool_name=db_tool.get("search_tool_name", ""),
                     litellm_params=masked_litellm_params_dict,
-                    search_tool_info=search_tool.get("search_tool_info"),
-                    created_at=_convert_datetime_to_str(search_tool.get("created_at")),
-                    updated_at=_convert_datetime_to_str(search_tool.get("updated_at")),
+                    search_tool_info=cast(Optional[dict], db_tool.get("search_tool_info")),
+                    created_at=_convert_datetime_to_str(cast(Optional[Union[datetime, str]], db_tool.get("created_at"))),
+                    updated_at=_convert_datetime_to_str(cast(Optional[Union[datetime, str]], db_tool.get("updated_at"))),
                     is_from_config=False,
                 )
             )