Machine access and protocols

The IISH shares its data, knowledge and experience with other researchers, research institutes, people and machines interested in social-economic history.

The IISH collection metadata are available through:

  • Linked Data (RDF). 

All metadata can be used under a Creative Commons CC0 1.0 Universal license


API access

All IISH collection items are accessible through API.

For SRU/SRW protocol, use:

For OAI-PMH protocol, use:

OAI set can be set to:

  • iish.archieven (for archives)
  • iish.evergreen.biblio (for books and serials)
  • iish.eci (for audiovisual material)

Prefix (metadata format) can be set to:

  • marc_xml
  • oai_dc
  • ead

Example OAI call, for archives in marcxml format: 

Linked data

All collection metadata have been converted to linked data and are updated on a daily basis. The resulting triple store has been used to form the foundation of this website, but is not open to the public. The linked data are created from the following sources:

  • Metadata of books, brochures and serials (in MARC)
  • Archival metadata (in EAD)
  • Digital objects metadata (in METS)
  • Metadata of research datasets (in DDI)
  • Website content

A download from the triple store has been used as contribution to the Adamnet linked data platform. In 2019 the collection linked data will be made available through a sparql endpoint, together with the research linked data already available on the DataLegend website.

For more information please contact manager collections Eric de Ruijter