# No Additional Fee
There is no additional fees to trade with OpenAPI. The fee stucture is identical to that of our APP. Please refer to our official website for a detailed break down of our fee structure. However, a minimum of 2000 USD account balance is nessesary for getting acess to our API serice.
# Market Data Subscription
To get market data through OpenAPI, you will have to subscibe to API market data, even if you have an active market data subscription for your mobile or desktop APP. And as a result, you can get market data simutanously with both Open API and our mobile/desktop APP. It is also worth mentioning that market data obtained with Open API has a much lower latency, and a higher refresh rate.
# How to subscribe to API market data
For individuals：Go to Tiger Trade APP - Profile - Market Data Store - OpenAPI to subscribe/purchase market data permissions For institutions：Go to Tiger Brokers Institutional Account Center - Market Data to purchase
Currently available market data subscriptions are listed as follows：
Stocks
| Name | Description | Name appears in API |
|---|---|---|
| Nasdaq Basic | L1 stock data from Nasdaq | usQuoteBasic |
| Nasdaq Basic+TotalView | Nasdaq Basic with orderbook data | usStockQuoteLv2Totalview |
| HK L2 Depth Data | Hongkong L2 depth quote, includes market depth quote. Automatically granted to users located in Mainland China | hkStockQuoteLv2 |
Options
| Name | Description | Name appears in API |
|---|---|---|
| Option L1 Real-time Data | U.S. stock options L1 real time quote | usOptionQuote |
Futures
| Name | Description | Name appears in API |
|---|---|---|
| CME ALL Level 2 | Includes market data from CME, CBOT, NYMEX and COMEX | CMEFuturesQuoteLv2 + CBOTFuturesQuoteLv2 + COMEXFuturesQuoteLv2 + NYMEXFuturesQuoteLv2 |
| CME Level 2 | CME，includes NASDAQ,S&P500, Forex futures | CMEFuturesQuoteLv2 |
| CBOT Level 2 | CBOT，includes Dow Jones futures, agriculture and interest rate futures | CBOTFuturesQuoteLv2 |
| NYMEX Level 2 | NYMEX，includes U.S. oil, natural gas and other energy products | NYMEXFuturesQuoteLv2 |
| COMEX Level 2 | COMEX, includes gold, siver and other metal futures | COMEXFuturesQuoteLv2 |
| HKEX Level 2 | L2 data for futures and options traded in HKEX | HKEXFuturesQuoteLv2 |
| SGX Level 2 | Market Data for futures traded in Singapore Exchange | SGXFuturesQuoteLv2 |
| OSE Level 2 | Market Data for futures traded in Osaka Exchange | OSEFuturesQuoteLv2 |
| CBOE Level 2 | CBOE | CBOEFuturesQuoteLv2 |