> For the complete documentation index, see [llms.txt](https://docs.console.zenlayer.com/api-reference/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.console.zenlayer.com/api-reference/cn/compute/zec/instance/describevminventorycapacity.md).

# DescribeVmInventoryCapacity

## 1. 接口描述

本接口(DescribeVmInventoryCapacity)用于查询各节点VM库存容量级别信息。

## 2. 请求参数

以下请求参数列表仅列出了接口中需要的请求参数

| 参数名称      | 必选 | 类型              | 描述                                                 |
| --------- | -- | --------------- | -------------------------------------------------- |
| regionIds | 否  | Array of String | <p>节点 ID 列表，格式如 asia-north-1。</p><p>不传则返回全部节点。</p> |

## 3. 响应结果

| 参数名称      | 类型                                                                                                   | 描述                                                       |
| --------- | ---------------------------------------------------------------------------------------------------- | -------------------------------------------------------- |
| requestId | String                                                                                               | <p>唯一请求 ID。</p><p>每次请求都会返回。定位问题时需要提供该次请求的 requestId。</p> |
| remark    | String                                                                                               | 库存容量档位说明，描述各档位对应的可售核数范围。                                 |
| dataSet   | Array of [VmRegionCapacityItem](/api-reference/cn/compute/zec/datastructure.md#vmregioncapacityitem) | 各节点库存容量列表。                                               |

## 4. 代码示例

{% tabs %}
{% tab title="示例" %}
**1. 查询全部节点的VM库存容量。**

```json
POST /api/v2/zec HTTP/1.1
Host: console.zenlayer.com
Content-Type: application/json
X-ZC-Action: DescribeVmInventoryCapacity
<Common Request Params>

Request：
{}

Response:
{
  "requestId": "A1B2C3D4-0000-0000-0000-000000000001",
  "response": {
    "remark": "LIMITED:  < 1000；NORMAL: 1000–2000；SUFFICIENT: 2000–5000；ABUNDANT: ≥ 5000。",
    "dataSet": [
      {
        "regionId": "sa-north-1",
        "capacity": "LIMITED",
        "instanceTypes": [
          {"instanceType": "z2a", "capacity": "LIMITED"}
        ]
      },
      {
        "regionId": "asia-southeast-1",
        "capacity": "LIMITED",
        "instanceTypes": [
          {"instanceType": "z2a", "capacity": "NORMAL"},
          {"instanceType": "z2a", "gpuSpec": "z4a.g.C49", "capacity": "LIMITED"}
        ]
      },
      {
        "regionId": "na-west-1",
        "capacity": "NORMAL",
        "instanceTypes": [
          {"instanceType": "z2a", "capacity": "SUFFICIENT"},
          {"instanceType": "z2i", "capacity": "NORMAL"}
        ]
      }
    ]
  }
}
```

**2. 查询指定节点的VM库存容量。**

```json
POST /api/v2/zec HTTP/1.1
Host: console.zenlayer.com
Content-Type: application/json
X-ZC-Action: DescribeVmInventoryCapacity
<Common Request Params>

Request：
{
  "regionIds": ["asia-southeast-1"]
}

Response:
{
  "requestId": "A1B2C3D4-0000-0000-0000-000000000002",
  "response": {
    "remark": "LIMITED:  < 1000；NORMAL: 1000–2000；SUFFICIENT: 2000–5000；ABUNDANT: ≥ 5000。",
    "dataSet": [
      {
        "regionId": "asia-southeast-1",
        "capacity": "LIMITED",
        "instanceTypes": [
          {"instanceType": "z2a", "capacity": "NORMAL"},
          {"instanceType": "z2a", "gpuSpec": "z4a.g.C49", "capacity": "LIMITED"}
        ]
      }
    ]
  }
}
```

{% endtab %}
{% endtabs %}

## 5. 开发者工具

Zenlayer Cloud API 2.0 提供了配套的[开发工具集（SDK）](/api-reference/cn/api-introduction/toolkit.md)，未来会陆续支持更多开发语言，方便快速接入和使用Zenlayer的产品和服务。

## 6. 错误码

下面包含业务逻辑中遇到的错误码，其他错误码见[公共错误码](/api-reference/cn/api-introduction/instruction/commonerrorcode.md)

| HTTP状态码 | 错误码 | 说明 |
| ------- | --- | -- |