> For the complete documentation index, see [llms.txt](https://docs.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.multimarkets.org/client-api/market-data/query/historical-k-line.md).
# Historical K-line
### Interface Description
Note: The server performs libz compression on the entire packet.
### Request-Protocol Number: 14012
#### Data format:json
#### Data Structure
**data definition**
| Fields | name | type | Required fields | illustrate |
| --------------------- | --------------------------- | ------ | --------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| symbol\_id | Product ID | uint64 | yes | |
| trade\_type | Transaction Type | uint32 | yes | 1: Full position contract, 2: Isolated position contract, 3: Leverage, 5: Spot, 6: Stock |
| trade\_mode | Trading Model | uint32 | yes | 1:MM, 2:ButterflyMM, 3:Matchmaking, 4:Aggregation |
| kline\_type | K-line type | uint32 | yes | 1 minute K, 2 is 5 minute K, 3 is 15 minute K, 4 is 30 minute K, 5 is hour K, 6 is 2 hour K, 7 is 4 hour K, 8 is daily K, 9 is weekly K, 10 is monthly K |
| kline\_timestamp\_end | Line end timestamp | uint64 | no | Unit: Seconds |
| query\_kline\_num | Query the number of K lines | uint32 | yes | kline\_timestamp\_end is 0, query\_kline\_num is not 0, query the latest query\_kline\_num K-lines (including the current K-line) kline\_timestamp\_end is not 0, query\_kline\_num is not 0, query the query\_kline\_num K-lines from kline\_timestamp\_end to the previous query\_kline\_num K-lines In other cases, the interface directly returns an error, indicating that the query service is not supported |
#### Request Example
Copy
```
{
"cmd_id":14012,
"seq_id":123,
"ext":"3baaa938-f92c-4a74-a228-fd49d5e2f8bc-1678419657806",
"data":{
"symbol_id": 1,
"trade_type": 1,
"trade_mode": 0,
"kline_type": 1,
"kline_timestamp_end": 1605509068,
"query_kline_num": 100,
}
}
```
### Response-Protocol Number: 14013
#### Data format:json
#### Data Structure
**data definition**
| Fields | name | type | illustrate |
| ------------- | -------------------- | ------ | -------------------------------------------------------------------------------------------------------------------------------------------------------- |
| symbol\_id | Product ID | uint64 | |
| trade\_type | Transaction Type | uint32 | 1: Full position contract, 2: Isolated position contract, 3: Leverage, 5: Spot, 6: Stock |
| trade\_mode | Trading Model | uint32 | 1:MM, 2:ButterflyMM, 3:Matchmaking, 4:Aggregation |
| kline\_type | K-line type | uint32 | 1 minute K, 2 is 5 minute K, 3 is 15 minute K, 4 is 30 minute K, 5 is hour K, 6 is 2 hour K, 7 is 4 hour K, 8 is daily K, 9 is weekly K, 10 is monthly K |
| price\_digits | Price decimal places | uint32 | |
| kline\_list | K-line list | array | See the kline\_list definition below for the specific format. |
**kline\_list definition**
| Fields | name | type | illustrate |
| -------------------- | ----------------------------------------- | ------ | ------------------ |
| timestamp | The timestamp of the K line | uint64 | Unit: Seconds |
| open\_price | The opening price of the K-line | string | |
| close\_price | The closing price of the K-line | string | |
| high\_price | The highest price of the K line | string | |
| low\_price | The lowest price of the K line | string | |
| last\_tick\_time | The last tick time of the K line | uint64 | Unit: milliseconds |
| last\_tick\_seq | The last tick number of the K-line | uint64 | |
| transactions\_number | The number of transactions of this K line | string | |
#### Example Response
Copy
```
{
"ret":200,
"msg":"ok",
"cmd_id":14013,
"seq_id":123,
"ext":"3baaa938-f92c-4a74-a228-fd49d5e2f8bc-1678419657806",
"data":{
"symbol_id": 1123,
"trade_type": 1,
"trade_mode": 0,
"kline_type": 1,
"price_digits": 2,
"kline_list":[
{
"timestamp": 1605509068,
"open_price": "651.12",
"close_price": "623.12",
"high_price": "674.12",
"low_price": "619.12",
"last_tick_time": 1605509068000001,
"last_tick_seq": 1605509068000001,
"transactions_number": "12345.6",
},
]
}
}
```
[
](https://docs-cn.multimarkets.org/client-api/bao-jia-jie-kou/cha-xun-jie-kou/xin-tiao)
---
# 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, and the optional `goal` query parameter:
```
GET https://docs.multimarkets.org/client-api/market-data/query/historical-k-line.md?ask=&goal=
```
`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.
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.