diff --git a/mcp_server.py b/mcp_server.py
index ca497619..9f95d8c6 100644
--- a/mcp_server.py
+++ b/mcp_server.py
@@ -48,7 +48,7 @@ class ServiceEndpoints:
     ROADSHOW_API = "http://222.128.1.157:19800"  # 路演API
     CONCEPT_API = "http://222.128.1.157:16801"  # 概念API（本地）
     STOCK_ANALYSIS_API = "http://222.128.1.157:8811"  # 涨停分析+研报API
-    MAIN_APP_API = "http://49.232.185.254:5001"  # 主应用API（自选股、自选事件等）
+    MAIN_APP_API = "http://127.0.0.1:5001"  # 主应用API（自选股、自选事件等）
 
 # HTTP客户端配置
 HTTP_CLIENT = httpx.AsyncClient(timeout=60.0)