Pergamos supports Open Archives Initiative Protocol for Metadata Harvesting (OAI-PMH) and Dublin Core for metadata harvesting .
In particular, the oai_dc format is used for encoding metadata in XML.
/oai-pmh
Pergamos supports open protocol OAI-PMH and Europeana Data Model (EDM) for interoperability with Europeana Digital Library.
In particular, the edm format is supported for encoding items in Europeana XML compatible format.
/edm
Pergamos provides a REST/JSON API for interoperability with other applications.
/rest