Alibaba Cloud RDS OpenAPI MCP Server

Instructions

Queries instances.
Args:
    region_id: queries instances in region id(e.g. cn-hangzhou)
:return:

Implementation Reference

• src/alibabacloud_rds_openapi_mcp_server/server.py:67-89 (handler)

  The core handler function for the 'describe_db_instances' MCP tool. It creates a DescribeDBInstancesRequest, calls the RDS client's describe_dbinstances method via get_rds_client, processes the response into CSV format using json_array_to_csv, and returns the list of DB instances or a 'No RDS instances found.' message if empty.

  @mcp.tool(annotations=READ_ONLY_TOOL)
  async def describe_db_instances(region_id: str):
      """
      Queries instances.
      Args:
          region_id: queries instances in region id(e.g. cn-hangzhou)
      :return:
      """
      client = get_rds_client(region_id)
      try:
          request = rds_20140815_models.DescribeDBInstancesRequest(
              region_id=region_id,
              page_size=100
          )
          response = client.describe_dbinstances(request)
  
          res = json_array_to_csv(response.body.items.dbinstance)
          if not res:
              return "No RDS instances found."
          return res
      except Exception as e:
          raise e