Statistics Poland (GUS) Local Data Bank (BDL) API

Statistics Poland (GUS) Local Data Bank (BDL) API

Statistics Poland (GUS) serves its Local Data Bank (Bank Danych Lokalnych, BDL) regional and national statistics through a keyless REST API, with XML, JSON and JSONAPI formats; a free personal API key is available by registering for higher limits.

Coverage

Regional and national statistics across territorial levels from Poland down to gminas and statistical localities (0–7), organised by subject groups ("Tematy", e.g. population) and multi-dimensional variables ("Zmienne"), queryable via aggregates, units, variables, data and metadata endpoints. Update cadence: Not stated.

Verdict

Poland's regional and national statistics (territorial levels from Poland down to gminas and statistical localities, grouped by subject) via a keyless BDL REST API (XML/JSON/JSONAPI), with an optional free personal API key (X-ClientId header) for higher limits. Licensed CC BY 4.0: the page says, in Polish, "Dane są możliwe do wykorzystywania w oparciu o licencję międzynarodową Creative Commons by 4.0 – Uznanie autorstwa" (Signal Lab translation: "The data may be used under the international Creative Commons BY 4.0 licence – Attribution"). Rate limits: the page states, in Polish, "Ze względów bezpieczeństwa API na ilość żądań nałożone są limity ilościowe. Użytkownicy potrzebujący większych limitów mogą się zarejestrować i uzyskać generowany automatycznie osobisty klucz API." (Signal Lab translation: "For security reasons, the API imposes quantitative limits on the number of requests. Users who need higher limits can register and obtain an automatically generated personal API key.") The page's limits table gives: anonymous users 5 requests/1s, 100/15m, 1,000/12h, 10,000/7d; registered users (with a free personal key) 10/1s, 500/15m, 5,000/12h, 50,000/7d. Distinct from the live Statistics Sweden and Statistics Netherlands entries. Signal Lab links only.