01 · MARKET

A-share market data

Daily prices, valuation, indices, margin data, top lists and realtime snapshots.

02 · FUNDS

ETF and financial data

ETF prices, NAV, holdings, statements, indicators, forecasts and dividends.

03 · AGENTS

China stock API for AI agents

Machine-readable capabilities, consistent tools and narrow structured responses for agent workflows.

CONNECT

Add the hosted China market data API

The MCP endpoint is remote and managed by QuantSonar. Keep the API key in the client header rather than pasting it into a prompt. Clients that support remote Streamable HTTP MCP can use the endpoint and header shown here.

# Claude Code example
claude mcp add --transport http quantsonar https://quantsonar.com/mcp/ \
  --header "X-API-Key: qs_your_key"

HOW IT WORKS

A verifiable interface for AI agents

DISCOVERRead capabilities before calling tools/capabilities MANIFESTFind the remote MCP server definition/server.json CONTRACTUse public symbols and YYYYMMDD datessymbol=600519.SH LIMITSHandle quotas and Retry-After explicitly401 · 403 · 429

CHOOSE AN INTERFACE

MCP, Python SDK or REST

Use MCP for tool-capable agents, the Python SDK for China stock data for notebooks and research pipelines, or REST for language-neutral integrations.

ACCESS MODEL

Start free, upgrade by coverage

FREE supports integration validation and core daily data. Paid plans expand data depth and per-minute throughput. See China stock API pricing.

China Stock MCP Server