feat: add supabase tool (#473)

* feat: add supabase tool

* add docstring

Author: yaozheng-fang

veadk/tools/builtin_tools/supabase_toolset.py

@@ -0,0 +1,37 @@
+# Copyright (c) 2025 Beijing Volcano Engine Technology Co., Ltd. and/or its affiliates.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from google.adk.tools.mcp_tool.mcp_session_manager import (
+    StreamableHTTPConnectionParams,
+)
+from google.adk.tools.mcp_tool.mcp_toolset import MCPToolset
+
+
+def build_supabase_mcptoolset(url: str, api_key: str) -> MCPToolset:
+    """Build a MCPToolset for Supabase.
+
+    You can get the corresponding information from https://supabase.com/docs/guides/getting-started/mcp
+
+    Args:
+        url (str): The Supabase URL.
+        api_key (str): The Supabase API key.
+
+    Returns:
+        MCPToolset: The MCPToolset for Supabase.
+    """
+    return MCPToolset(
+        connection_params=StreamableHTTPConnectionParams(
+            url=url, headers={"Authorization": f"Bearer {api_key}"}
+        ),
+    )