Sources

Official data portals we verify

Every dataset and API in the catalog is harvested from an official public-sector source. These are the 89 portals we continuously monitor — the catalog itself lists what's inside them.

France87

European / cross-border2

European Central Bank — Data Portal APIOfficial statistics API of the European Central Bank (Data Portal, successor to the Statistical Data Warehouse): exchange rates, interest rates, monetary and financial time series over SDMX REST. Legacy host sdw-wsrest.ecb.europa.eu no longer resolves — migrated to data-api.ecb.europa.eu (redirect window closed 2025-10-01). Supports If-Modified-Since for efficient polling.
Eurostat — Dissemination API (SDMX 2.1)Official statistics of the European Union: ~8,000 dataflows over one SDMX 2.1 REST endpoint. Filter server-side with a positional key path (e.g. /data/une_rt_m/M.SA.TOTAL.PC_ACT.T.DE), wildcard whole dimensions with empty key positions, and bound extractions with startPeriod/endPeriod/lastNObservations. One endpoint serves SDMX-ML XML, SDMX-CSV (?format=sdmx-csv) and JSON-stat 2.0 (?format=json); OBS_FLAG carries methodological break markers in-payload. List dataflows with ?detail=allstubs (the full-detail listing times out). CC BY 4.0 with commercial-reuse carve-outs for some non-EU/EFTA data.