diff --git a/api/controllers/service_api/__init__.py b/api/controllers/service_api/__init__.py
index 9032733e2c..05fb3aa629 100644
--- a/api/controllers/service_api/__init__.py
+++ b/api/controllers/service_api/__init__.py
@@ -36,6 +36,9 @@ from .dataset import (
 )
 from .workspace import models
 
+# Register MethodView classes with the blueprint
+bp.add_url_rule("/", view_func=index.IndexApi.as_view("index_api"), methods=["GET"])
+
 __all__ = [
     "annotation",
     "app",
@@ -56,4 +59,5 @@ __all__ = [
     "workflow",
 ]
 
-api.add_namespace(service_api_ns)
+# Temporarily disable namespace registration to test MethodView
+# api.add_namespace(service_api_ns)
diff --git a/api/controllers/service_api/index.py b/api/controllers/service_api/index.py
index a9d2d6fadc..2252931b5b 100644
--- a/api/controllers/service_api/index.py
+++ b/api/controllers/service_api/index.py
@@ -1,11 +1,9 @@
-from flask_restx import Resource
+from flask.views import MethodView
 
 from configs import dify_config
-from controllers.service_api import service_api_ns
 
 
-@service_api_ns.route("/")
-class IndexApi(Resource):
+class IndexApi(MethodView):
     def get(self):
         return {
             "welcome": "Dify OpenAPI",