finance-internal-futures-kline
Domestic Futures Candlestick Chart
Domestic Futures Candlestick Charts
Usage Cost
5 coins/call
Quick Start
Use a unified response envelope and call directly from your backend.
https://openapi.toolkk.com/v1/finance-internal-futures-klinecURL Example
curl --request POST \
--url 'https://openapi.toolkk.com/v1/finance-internal-futures-kline' \
--header 'Content-Type: application/json' \
--header 'X-API-Key: YOUR_API_KEY' \
--data '{\n "symbol": "期货品种代码,详见代码表",\n "type": "k线类型,0:日k,1:1分钟,5:五分钟;30:30分钟,60:60分钟,120:120分钟,240:240分钟",\n "limit": "返回条数,默认10"\n}'Python Example
import os
import requests
url = "https://openapi.toolkk.com/v1/finance-internal-futures-kline"
payload = {
"symbol": "期货品种代码,详见代码表",
"type": "k线类型,0:日k,1:1分钟,5:五分钟;30:30分钟,60:60分钟,120:120分钟,240:240分钟",
"limit": "返回条数,默认10"
}
headers = {
"Content-Type": "application/json",
"X-API-Key": os.getenv("TOOLKK_API_KEY", "YOUR_API_KEY"),
}
response = requests.request("POST", url, headers=headers, json=payload, timeout=30)
response.raise_for_status()
print(response.json())Go Example
package main
import (
"bytes"
"fmt"
"io"
"net/http"
)
func main() {
endpoint := "https://openapi.toolkk.com/v1/finance-internal-futures-kline"
payload := []byte("{\n \"symbol\": \"期货品种代码,详见代码表\",\n \"type\": \"k线类型,0:日k,1:1分钟,5:五分钟;30:30分钟,60:60分钟,120:120分钟,240:240分钟\",\n \"limit\": \"返回条数,默认10\"\n}")
req, err := http.NewRequest("POST", endpoint, bytes.NewBuffer(payload))
if err != nil {
panic(err)
}
req.Header.Set("Content-Type", "application/json")
req.Header.Set("X-API-Key", "YOUR_API_KEY")
resp, err := http.DefaultClient.Do(req)
if err != nil {
panic(err)
}
defer resp.Body.Close()
body, err := io.ReadAll(resp.Body)
if err != nil {
panic(err)
}
fmt.Println(string(body))
}Java Example
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
public class ToolkkExample {
public static void main(String[] args) throws Exception {
String payload = "{\n \"symbol\": \"期货品种代码,详见代码表\",\n \"type\": \"k线类型,0:日k,1:1分钟,5:五分钟;30:30分钟,60:60分钟,120:120分钟,240:240分钟\",\n \"limit\": \"返回条数,默认10\"\n}";
HttpRequest request = HttpRequest.newBuilder()
.uri(URI.create("https://openapi.toolkk.com/v1/finance-internal-futures-kline"))
.method("POST", HttpRequest.BodyPublishers.ofString(payload))
.header("Content-Type", "application/json")
.header("X-API-Key", "YOUR_API_KEY")
.build();
HttpResponse<String> response = HttpClient.newHttpClient()
.send(request, HttpResponse.BodyHandlers.ofString());
System.out.println(response.body());
}
}PHP Example
<?php
$endpoint = 'https://openapi.toolkk.com/v1/finance-internal-futures-kline';
$payload = "{\n \"symbol\": \"期货品种代码,详见代码表\",\n \"type\": \"k线类型,0:日k,1:1分钟,5:五分钟;30:30分钟,60:60分钟,120:120分钟,240:240分钟\",\n \"limit\": \"返回条数,默认10\"\n}";
$ch = curl_init($endpoint);
curl_setopt_array($ch, [
CURLOPT_RETURNTRANSFER => true,
CURLOPT_CUSTOMREQUEST => 'POST',
CURLOPT_HTTPHEADER => [
'Content-Type: application/json',
'X-API-Key: YOUR_API_KEY',
],
CURLOPT_POSTFIELDS => $payload,
]);
$response = curl_exec($ch);
if ($response === false) {
throw new RuntimeException(curl_error($ch));
}
curl_close($ch);
echo $response;Response Example
{
"msg": "成功",
"taskNo": "075556736233047430019762",
"code": 200,
"data": {
"lines": [
[
552.44,
552.82,
553.2,
552.36,
0.38,
0.07,
2516,
1717178400
]
],
"fields": [
"open",
"close",
"high",
"low",
"change",
"changeRate",
"volume",
"tick_at"
]
}
}Examples illustrate the response structure. Actual results depend on the API response.
- Authentication
- Send X-API-Key in request headers
- Rate limit
- 60 req/min
- Timeout
- 5000 ms
Send your API Key in the X-API-Key header from your backend.
Check both HTTP status and business fields before treating a call as successful.
Use retries and backoff together with rate limits in high-frequency scenarios.
Request Fields
Send requests from your server with the key in the X-API-Key header.
Request Fields
Fields are read from the API schema. Missing descriptions and examples are marked as unspecified.
| Path | Type | Required | Description | Sample |
|---|---|---|---|---|
| symbol | string | Yes | 期货品种代码,详见代码表 | Unspecified |
| type | string | Yes | k线类型,0:日k,1:1分钟,5:五分钟;30:30分钟,60:60分钟,120:120分钟,240:240分钟 | Unspecified |
| limit | string | No | 返回条数,默认10 | Unspecified |
Request Example
{
"symbol": "期货品种代码,详见代码表",
"type": "k线类型,0:日k,1:1分钟,5:五分钟;30:30分钟,60:60分钟,120:120分钟,240:240分钟",
"limit": "返回条数,默认10"
}- Authentication
- Send X-API-Key in request headers
- Rate limit
- 60 req/min
- Timeout
- 5000 ms
Response Fields
Examples illustrate the response structure. Actual results depend on the API response.
Response Fields
Fields are read from the API schema. Missing descriptions and examples are marked as unspecified.
| Path | Type | Required | Description | Sample |
|---|---|---|---|---|
| msg | string | No | 返回码对应描述 | 成功 |
| taskNo | string | No | 本次请求号 | 075556736233047430019762 |
| code | number | No | 返回码,详见返回码说明 | 200 |
| data | object | No | Unspecified | Unspecified |
| data.lines | array | No | Unspecified | [[552.44,552.82,553.2,552.36,0.38,0.07,2516,1717178400]] |
| data.lines[] | array | Unspecified | Unspecified | [552.44,552.82,553.2,552.36,0.38,0.07,2516,1717178400] |
| data.fields | array | No | Unspecified | ["open","close","high","low","change","changeRate","volume","tick_at"] |
| data.fields[] | string | Unspecified | Unspecified | open |
Response Example
{
"msg": "成功",
"taskNo": "075556736233047430019762",
"code": 200,
"data": {
"lines": [
[
552.44,
552.82,
553.2,
552.36,
0.38,
0.07,
2516,
1717178400
]
],
"fields": [
"open",
"close",
"high",
"low",
"change",
"changeRate",
"volume",
"tick_at"
]
}
}API overview
Capabilities, use cases, limitations, and frequently asked questions.
API Introduction
This API provides historical K-line data query services for the domestic futures market. It supports obtaining market data for specified periods via futures product codes, covering core indicators such as open, close, high, low, and trading volume. Data is returned in an array format, facilitating front-end chart rendering or back-end quantitative calculations.
Use Cases
- Quantitative Trading Strategy Backtesting: Obtain historical minute-level or daily data for strategy validation.
- Financial Terminal Development: Provide real-time or historical K-line chart data sources for apps or web clients.
- Market Trend Monitoring: Monitor the volatility of specific futures products to assist investment decisions.
Request and Response Description
Request Method: POST Key Parameters:
symbol(Required): Futures product code, must refer to the standard code table.type(Required): K-line type, supports 0 (Daily K), 1 (1-minute), 5 (5-minute), 30/60/120/240 minutes, etc.