For most retail investors, brokers will not provide interfaces. But for institutions or customers with high aum, there are related services.
At present, the programmatic trading interfaces of A shares mainly include Kuanrui System, Guo Xin TS, CITIC CATS, Hang Seng PB and Zhongtai XTP. In fact, it is a bit unavoidable to develop strategies on such a system platform and realize the legal compliance of programmed transactions.