Avoid Survivorship Bias By Keeping Delisted Stocks And Historical Index Constitu

Self-hosted China A-share data lake with 42 daily-updated datasets in Parquet/DuckDB, row-level provenance, PIT semantics and adjustment built in. Ships 6 native MCP tools so AI agents and Python/Polars/DuckDB clients query the same local lake, with no registration or API token.

MCP | Python · a-shares · china-stock-market