Documentation

Running and querying Quantgress

Python 3.10+. No database server — DuckDB ships as a library dependency. Start with the quick start, then follow the section you need.

Clone, install, validate every parser offline, run a bounded backfill, query, and serve — five steps to a working instance.

The full 18-phase index: every dataset, its primary government source, and update cadence.

The read-only FastAPI layer: endpoint table, generic filters, pagination, and what's deliberately not built.

The unified trades view, what each column fixes, and why filed_date beats txn_date.

Keep it current: the daily incremental driver and per-cadence cron schedules for the other phases.

What's unrestricted public-domain data, and the two datasets with real redistribution constraints.