Catalogue datasets, MARC Organization Codes and ISILs in RDF and CSV

This usage guide is based on goodwill. It is not a legal contract, but we ask that you respect it.

These terms and conditions apply to British Library catalogue datasets, MARC Organization Codes and International Standards Identifiers for Libraries and related organizations (ISILs) assigned by the British Library and released in RDF and CSV.

Use of data

This data is being made available under a Creative Commons CC0 1.0 Universal Public Domain Dedication licence. This means that the British Library Board makes no copyright, related or neighbouring rights claims to the data and does not apply any restrictions on subsequent use and reuse of the data.


The British Library is committed to providing high quality services and accurate data. If you have any queries or identify any problems with the data please contact

Share knowledge

We are interested to hear the ways in which you have used this data. This helps us understand more fully the benefits of sharing it and improve our services. Please contact if you wish to share your experiences with us and those that are using this service.

Give credit where credit is due

The British Library has a responsibility to maintain its bibliographic data on the nation’s behalf. Please credit all use of this data to the British Library and link back to in order that this information can be shared and developed with today’s Internet users as well as future generations.

Do not misrepresent the dataset

Do not mislead others or misrepresent the dataset or its source. You must not use the British Library’s trademarks or otherwise claim or imply that the British Library endorses you or your use of the dataset. Whenever you transform, translate or otherwise modify the dataset, you must make clear that the resulting information has been modified by you. If you enrich or otherwise modify the dataset, consider publishing the derived dataset without reuse restrictions.


The British Library accepts no liability for damages from any use of the supplied data. For more detail please see the terms of the Creative Commons CC0 1.0 Universal Public Domain Dedication licence. This usage guide is based on best practice developed by the Open Data community.

Other options available for British Library catalogue metadata

For details and licensing terms about other open data options, please visit our Metadata Services page or contact If you are interested in priced services for commercial use, please contact our marketing team.

Contact details

Collection Metadata
The British Library
Boston Spa
West Yorkshire
LS23 7BQ
United Kingdom