DaSCH DSP-API
The DaSCH Service Platform API (DSP-API, formerly Knora), an open-source HTTP API for long-term preservation, querying, annotation and linking of humanities research data as RDF graphs, with the Gravsearch search language. Developed and operated by the Swiss National Data and Service Center for the Humanities (DaSCH) at the University of Basel. Public documentation, open-source code on GitHub, and a live service endpoint (HTTP 405 on GET to the v2 ontologies path confirms the endpoint exists).