diff --git a/api/core/tools/tool_manager.py b/api/core/tools/tool_manager.py
index f3fa18393e..61e29672f9 100644
--- a/api/core/tools/tool_manager.py
+++ b/api/core/tools/tool_manager.py
@@ -9,6 +9,7 @@ from typing import Any, Union
 from flask import current_app
 
 from core.agent.entities import AgentToolEntity
+from core.model_runtime.utils.encoders import jsonable_encoder
 from core.provider_manager import ProviderManager
 from core.tools import *
 from core.tools.entities.common_entities import I18nObject
@@ -29,7 +30,6 @@ from core.tools.utils.configuration import (
     ToolConfigurationManager,
     ToolParameterConfigurationManager,
 )
-from core.tools.utils.encoder import serialize_base_model_dict
 from core.utils.module_import_helper import load_single_subclass_from_source
 from core.workflow.nodes.tool.entities import ToolEntity
 from extensions.ext_database import db
@@ -545,7 +545,7 @@ class ToolManager:
                 "content": "\ud83d\ude01"
             }
 
-        return json.loads(serialize_base_model_dict({
+        return jsonable_encoder({
             'schema_type': provider.schema_type,
             'schema': provider.schema,
             'tools': provider.tools,
@@ -553,7 +553,7 @@ class ToolManager:
             'description': provider.description,
             'credentials': masked_credentials,
             'privacy_policy': provider.privacy_policy
-        }))
+        })
 
     @classmethod
     def get_tool_icon(cls, tenant_id: str, provider_type: str, provider_id: str) -> Union[str, dict]:
diff --git a/api/core/tools/utils/encoder.py b/api/core/tools/utils/encoder.py
deleted file mode 100644
index 6d2ea5d7c6..0000000000
--- a/api/core/tools/utils/encoder.py
+++ /dev/null
@@ -1,21 +0,0 @@
-
-from pydantic import BaseModel
-
-
-def serialize_base_model_array(l: list[BaseModel]) -> str:
-    class _BaseModel(BaseModel):
-        __root__: list[BaseModel]
-
-    """
-        {"__root__": [BaseModel, BaseModel, ...]}
-    """
-    return _BaseModel(__root__=l).json()
-
-def serialize_base_model_dict(b: dict) -> str:
-    class _BaseModel(BaseModel):
-        __root__: dict
-
-    """
-        {"__root__": {BaseModel}}
-    """
-    return _BaseModel(__root__=b).json()
diff --git a/api/services/tools_manage_service.py b/api/services/tools_manage_service.py
index 29245f1f3b..f342c019f6 100644
--- a/api/services/tools_manage_service.py
+++ b/api/services/tools_manage_service.py
@@ -3,6 +3,7 @@ import logging
 
 from httpx import get
 
+from core.model_runtime.utils.encoders import jsonable_encoder
 from core.tools.entities.common_entities import I18nObject
 from core.tools.entities.tool_bundle import ApiBasedToolBundle
 from core.tools.entities.tool_entities import (
@@ -18,7 +19,6 @@ from core.tools.provider.builtin._positions import BuiltinToolProviderSort
 from core.tools.provider.tool_provider import ToolProviderController
 from core.tools.tool_manager import ToolManager
 from core.tools.utils.configuration import ToolConfigurationManager
-from core.tools.utils.encoder import serialize_base_model_array, serialize_base_model_dict
 from core.tools.utils.parser import ApiBasedToolSchemaParser
 from extensions.ext_database import db
 from models.tools import ApiToolProvider, BuiltinToolProvider
@@ -89,9 +89,9 @@ class ToolManageService:
             :return: the list of tool providers
         """
         provider = ToolManager.get_builtin_provider(provider_name)
-        return json.loads(serialize_base_model_array([
+        return jsonable_encoder([
             v for _, v in (provider.credentials_schema or {}).items()
-        ]))
+        ])
 
     @staticmethod
     def parser_api_schema(schema: str) -> list[ApiBasedToolBundle]:
@@ -152,14 +152,12 @@ class ToolManageService:
                 ),
             ]
 
-            return json.loads(serialize_base_model_dict(
-                {
-                    'schema_type': schema_type,
-                    'parameters_schema': tool_bundles,
-                    'credentials_schema': credentials_schema,
-                    'warning': warnings
-                }
-            ))
+            return jsonable_encoder({
+                'schema_type': schema_type,
+                'parameters_schema': tool_bundles,
+                'credentials_schema': credentials_schema,
+                'warning': warnings
+            })
         except Exception as e:
             raise ValueError(f'invalid schema: {str(e)}')
 
@@ -213,7 +211,7 @@ class ToolManageService:
             schema=schema,
             description=extra_info.get('description', ''),
             schema_type_str=schema_type,
-            tools_str=serialize_base_model_array(tool_bundles),
+            tools_str=json.dumps(jsonable_encoder(tool_bundles)),
             credentials_str={},
             privacy_policy=privacy_policy
         )
@@ -406,7 +404,7 @@ class ToolManageService:
         provider.schema = schema
         provider.description = extra_info.get('description', '')
         provider.schema_type_str = ApiProviderSchemaType.OPENAPI.value
-        provider.tools_str = serialize_base_model_array(tool_bundles)
+        provider.tools_str = json.dumps(jsonable_encoder(tool_bundles))
         provider.privacy_policy = privacy_policy
 
         if 'auth_type' not in credentials:
@@ -515,9 +513,7 @@ class ToolManageService:
             ) for tool in tools
         ]
 
-        return json.loads(
-            serialize_base_model_array(result)
-        )
+        return jsonable_encoder(result)
     
     @staticmethod
     def delete_api_tool_provider(
@@ -586,7 +582,7 @@ class ToolManageService:
                 schema=schema,
                 description='',
                 schema_type_str=ApiProviderSchemaType.OPENAPI.value,
-                tools_str=serialize_base_model_array(tool_bundles),
+                tools_str=json.dumps(jsonable_encoder(tool_bundles)),
                 credentials_str=json.dumps(credentials),
             )