Install from PyPI
Add the SDK to notebooks, scripts and scheduled research jobs with pip.
Set one API key
Use QUANTSONAR_TOKEN or call qs.set_token() once.
Receive DataFrames
Call named methods with public symbol and date parameters.
QUICKSTART
From install to A-share prices
The SDK keeps authentication and response conversion out of your analysis code. Security codes use the exchange suffix, such as 600519.SH.
pip install quantsonar import quantsonar as qs qs.set_token("qs_your_key") df = qs.daily( symbol="600519.SH", start_date="20260101" )
One SDK across China market data
AUTHENTICATION
Keep credentials outside source code
For repeatable environments, set QUANTSONAR_TOKEN. See the China stock API authentication section for errors and key handling.
OTHER ACCESS
Building an AI agent?
Connect the China stock MCP server for tool-capable agents, or use REST when you need a language-neutral integration.