Deutsche Bundesbank — Calendar regressor (BBDC1)

Calendar regressor (BBDC1) is an official time series dataset published by the Deutsche Bundesbank, Germany's central bank, as part of its SDMX 2.1 REST data offering. It is served through a single endpoint supporting multiple formats, including XML (SDMX-ML), CSV, and JSON. Users can extract specific series using a key path along with startPeriod, endPeriod, and lastNObservations filters. The dataset falls under the BBDC1 dataflow and is intended for statistical and economic analysis at the national level, providing calendar-related regressor data used in time series adjustment and economic modelling.Calendar regressor (BBDC1) — official time series from the Deutsche Bundesbank, published as the BBDC1 dataflow over SDMX 2.1 REST. One endpoint serves XML (SDMX-ML), CSV (?format=csv) and JSON (?format=json); extract exactly the series you need with a key path and startPeriod / endPeriod / lastNObservations filters.