Building an AI agent? Start with /llms.txt for the full site index.
Overview
Source policy
Official-first, with source roles separated and lineage kept on every row.
- TWSE / TPEx / MOPS / TAIFEX first — official / public-first.
- Canonical, fallback and helper source roles are kept separate, never silently blended.
- Lineage, freshness, completeness and auditability are treated as core capabilities.
Being honest about the edges is part of the product. Current boundaries:
- Value-level reconciliation dates are not published. No verified-on date is claimed for any dataset until a real one exists.
- Some datasets are private-beta / preview with partial coverage; they are graded Reference, not Verified.
- Master / reference datasets are active snapshots and are not survivorship-safe for point-in-time backtests.
- We do not blend unofficial third-party sources into an official-labelled field.
