> For the complete documentation index, see [llms.txt](https://docs-cn.multimarkets.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs-cn.multimarkets.org/client-api/bao-jia-jie-kou/cha-xun-jie-kou/xin-tiao.md).

# 心跳

## 接口说明

要求请求者每10秒发送一次，在30秒内如果没有收到心跳请求，就会认为超时，断开请求者的websocket连接

## 请求-协议号：14008

### 数据格式:json

### 数据结构

#### data定义

### 请求示例

```json
{
    "cmd_id":14008,
    "seq_id":123,
    "ext":"3baaa938-f92c-4a74-a228-fd49d5e2f8bc-1678419657806",
    "data":{
    }
}
```

## 应答-协议号：14009

### 数据格式:json

### 数据结构

#### data定义

### 应答示例

```json
{
    "ret":200,
    "msg":"ok",
    "cmd_id":14009,
    "seq_id":123,
    "ext":"3baaa938-f92c-4a74-a228-fd49d5e2f8bc-1678419657806",
    "data":{
    }
}
```


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs-cn.multimarkets.org/client-api/bao-jia-jie-kou/cha-xun-jie-kou/xin-tiao.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.