baubook interface

baubook offers free XML and REST API interfaces for automated data retrieval. To use these, please sign the baubook interface agreement. Manual data retrieval is also available free of charge once you have registered.

Data retrieval via interface

For software developers or research organisations, automated data retrieval via an interface is recommended.

XML interface

Version V3.000 and Version 2.110 (until around the start of 2027)
daily updates
access via token
documentation

REST API (NEW: incl. version archive)

Version V3.000
JSON
complete OpenAPI schema
generated clients (NSwag, Kiota)
Swagger UI with machine-readable entry point for AI assistants (llms.txt)
version archive
delta synchronisation
online documentation

Interface agreement and application form

For data integration into calculation programmes, we offer reference and product characteristic values via an XML or REST API interface. To do so, please sign the baubook interface agreement for the use of the data.

Download interface agreement:

Interface application form

Manual data retrieval (XML download)

Registered baubook users can download the reference and product characteristic values free of charge. For some programmes, this step is already built into the software. For older programme versions, we provide the XML file as an import file for manual upload. The data can be downloaded in XML format and imported into the calculation programmes. Registration is free of charge.

Free registration is required to retrieve data manually.