Quick Start

Key takeaways

• Fubon Futures Market Data Web API provides intraday futures/options data for Taiwan.
• Exceeding limits returns status code 429.
• SDK examples are available for Python, Node.js, and C#.

Item	Details
Interface	Web API
Market	Taiwan futures / options
Data types	Intraday
Rate limit	429 on exceed
SDK	Python / Node.js / C#

Fubon Futures Market Data Web API provides developer-friendly services for Taiwan futures and options.

Rate Limit

If your API requests exceed the limit, you will receive a response with a status code 429 ( For detailed limitations, please refer to Rate Limit )

API Category

Web API are categorized based on data types:

• /intraday/products - Futures and Options Contract List（Query by conditions）
• /intraday/tickers - Futures and Options product list（Query by condition）
• /intraday/quote/{symbol} - Real-time quotes (query by symbol)
• /intraday/candles/{symbol} - Contract K Line（Query by symbol）
• /intraday/trades/{symbol} - Contract trade details (query by symbol)
• /intraday/volumes/{symbol} - Futures and Options price-volume data（query by symbol）

Contract Symbols and Continuous-Month Aliases

Futures and options can be queried with a specific contract symbol that includes a month code, such as TXFG6. Continuous-month aliases are also available so that you can follow a near-month contract without changing the symbol yourself at rollover.

Alias	Description
{ROOT}1!	First near-month (front-month) contract.
{ROOT}2!	Second near-month contract.
{ROOT}3!	Third near-month contract.

• {ROOT} is the product root. For example, TXF is the Taiwan Stock Index Futures root, so TXF1! represents its front-month contract.
• The system resolves an alias to the current specific contract, for example TXF1! → TXFG6, and rolls it to the new near-month after each settlement. The symbol in returned data is the resolved specific contract symbol.
• Use continuous-month aliases as {symbol} with /intraday/ticker, /intraday/quote, /intraday/candles, /intraday/trades, and /intraday/volumes, and with WebSocket subscriptions.
• Aliases do not appear in list responses such as /intraday/products or /intraday/tickers; query them directly.
• Aliases are currently available for 1!, 2!, and 3!, representing the first through third near-month contracts.

When a quote is queried with a continuous-month alias, the returned symbol is the resolved specific contract:

Python

restfutopt.intraday.quote(symbol='TXF1!')  # Query the front-month Taiwan Stock Index Futures quote with a continuous-month alias.

Node.js

futopt.intraday.quote({ symbol: 'TXF1!' }); // Query the front-month Taiwan Stock Index Futures quote with a continuous-month alias.

Response body (excerpt; symbol has been resolved to a specific contract):

{
  "date": "2026-07-03",
  "type": "FUTURE",
  "exchange": "TAIFEX",
  "symbol": "TXFG6",
  "name": "Taiwan Stock Index Futures 076",
  "previousClose": 46599,
  "openPrice": 45700,
  "lastPrice": 46510
}

Using SDK

Fubon Futures Market Data Web API offers Python, Node.js, and C# SDKs. You can access the API through the following methods:

Python

from fubon_neo.sdk import FubonSDK, Order
# Since version 2.2.4, add the following import: 
# from fubon_neo.fugle_marketdata.rest.base_rest import FugleAPIError

sdk = FubonSDK()

accounts = sdk.login("Your ID", "Your password", "Your cert path", "Your cert password")  

sdk.init_realtime()  

restfutopt = sdk.marketdata.rest_client.futopt  

Node.js

const { FubonSDK } = require('fubon-neo');

const sdk = new FubonSDK();

const accounts = sdk.login("Your ID", "Your Password", "Your Cert Path", "Your Cert Password");

sdk.initRealtime(); 

const client = sdk.marketdata.restClient

const futopt = client.futopt;

C#

using FubonNeo.Sdk;

var sdk = new FubonSDK();

var result = sdk.Login("Your ID", "Your password", "Your cert path", "Your cert password");

sdk.InitRealtime(); 

var rest = sdk.MarketData.RestClient.FutureOption;