1, international futures, domestic futures, foreign exchange, precious metals, spot, options, stock index, digital currency, A shares.
Exchanges: NYMEX in new york, COMEX in new york, CME in Chicago, CBOE in Chicago, ICE in the United States, ICE in Europe, EUREX in Switzerland, LME in London, HKEx, SGX in Singapore, TOCOM in JD.COM, BMD in Malaysia, CICC CFFEX, SHFE in the last issue, DCE in Dashang, CZCE in Zhengshang, INE in the last issue and Shanghai and Shenzhen Stock Exchanges.
2. access the socket websocket http.
3. Call the K line for free and push the K line in real time.
4. Don't delay
5.API interface
6. Professional one-on-one guidance