# 指定项目ID
cli-x-project-id用于指定项目ID，用于认证鉴权，在需指定请求头中项目ID时添加此参数。
```
hcloud VPC ListAddressGroup/v3 --cli-region="cn-north-4" --cli-x-project-id="2cc60****************caefa5019ef"
{
  "request_id": "29ec21****************6d6b4cdd82",
  "address_groups": [],
  "page_info": {
  "current_count": 0
   }
}
```