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