diff --git a/api/controllers/console/datasets/rag_pipeline/rag_pipeline_workflow.py b/api/controllers/console/datasets/rag_pipeline/rag_pipeline_workflow.py
index 22b5b64009..df2cc3f892 100644
--- a/api/controllers/console/datasets/rag_pipeline/rag_pipeline_workflow.py
+++ b/api/controllers/console/datasets/rag_pipeline/rag_pipeline_workflow.py
@@ -3,7 +3,7 @@ import logging
 from typing import Any, Literal, cast
 
 from flask import abort, request
-from flask_restx import Resource, marshal_with, reqparse  # type: ignore
+from flask_restx import Resource, marshal_with  # type: ignore
 from pydantic import BaseModel, Field
 from sqlalchemy.orm import Session
 from werkzeug.exceptions import Forbidden, InternalServerError, NotFound
@@ -120,6 +120,10 @@ class DatasourceVariablesPayload(BaseModel):
     start_node_title: str
 
 
+class RagPipelineRecommendedPluginQuery(BaseModel):
+    type: str = "all"
+
+
 register_schema_models(
     console_ns,
     DraftWorkflowSyncPayload,
@@ -134,6 +138,7 @@ register_schema_models(
     NodeIdQuery,
     WorkflowRunQuery,
     DatasourceVariablesPayload,
+    RagPipelineRecommendedPluginQuery,
 )
 
 
@@ -974,11 +979,8 @@ class RagPipelineRecommendedPluginApi(Resource):
     @login_required
     @account_initialization_required
     def get(self):
-        parser = reqparse.RequestParser()
-        parser.add_argument("type", type=str, location="args", required=False, default="all")
-        args = parser.parse_args()
-        type = args["type"]
+        query = RagPipelineRecommendedPluginQuery.model_validate(request.args.to_dict())
 
         rag_pipeline_service = RagPipelineService()
-        recommended_plugins = rag_pipeline_service.get_recommended_plugins(type)
+        recommended_plugins = rag_pipeline_service.get_recommended_plugins(query.type)
         return recommended_plugins