U.S. BLS Public Data API boundary

Evidence-backed facts

1. The BLS Public Data API exposes published labor and economic time series through HTTPS GET and POST operations with JSON or XLSX output. informative
2. Version 1 offers limited public use without registration, while version 2 registration permits larger or more frequent requests and optional calculations. informative
3. Series identifiers, year ranges, series-count limits, request quotas, and preliminary-data footnotes are part of the response interpretation boundary. informative
4. A successful time-series request does not prove revision stability, seasonal-adjustment comparability, complete metadata, or suitability for financial decisions. informative

Primary sources