A-share market data
Daily bars, indices, trading calendar and realtime data.
China market data.
Ready for research.
A hosted China market data API for research and AI agents. Access prices, financials and flows through Python, REST or MCP.
Free plan: 100 calls/dayNo credit card requiredCreate a key after email verification
Closing snapshot
上证指数
000001.SH3,888.11-1.18%贵州茅台
600519.SH1,275.16-0.78%宁德时代
300750.SZ330.51-2.23%中国平安
601318.SH54.83-1.24%中芯国际
688981.SH117.41-1.49%
Data coverage
Core data for quantitative research
Use consistent security symbols, date parameters, and response fields across research, backtesting, and monitoring.
China stock financial data
Financial statements, metrics, valuation and dividends.
China ETF data
Prices, NAV, fund size and holdings.
MCP for AI agents
Hosted MCP, Python SDK and REST.
Connect QuantSonar to agent workflows
Send the installation guide to an agent that supports MCP or Skills. It can inspect the environment, configure access, and run the first read-only query.
View agent integration documentation
Plans
Choose a plan by data access and throughput
Paid plans have no daily call cap
Pro includes all data except premium factors; Expert adds premium factors and higher throughput.
FREE
Daily data and integration testing
¥0
100/day · 30/min
- Daily bars, indices and reference data
- Test REST, SDK and MCP integration
PRO
All data except premium factors
¥59 / mo
Unlimited · 200/min
- Realtime, financials, capital and chips
- Standard factors, sectors and reports
EXPERT
All data and premium factors
¥89 / mo
Unlimited · 500/min
- All Pro data entitlements
- Premium technical factors and higher throughput
Get started
Start querying with a free API key
Register, verify your email, create an API key, then connect through REST API, Python SDK, or MCP.
Create a free account