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Analyse Crossref metadata to inform and understand research Crossref is the sustainable source of community-owned scholarly metadata and is relied upon by thousands of systems across the research ecosystem and the globe. Some of the typical users (outer) and uses (inner) of Crossref metadata Show image × People using Crossref metadata need it for all sorts of reasons including metaresearch (researchers studying research itself such as through bibliometric analyses), publishing trends (such as finding works from an individual author or reviewer), or incorporation into specific databases (such as for discovery and search or in subject-specific repositories), and many more detailed use cases.

UPDATE, 24 August 2021: All pools have been migrated to the new Elasticsearch-backed API, which already appears to be more stable and performant than the outgoing Solr API. Please report any issues via our Crossref issue repository in Gitlab. UPDATE, 9 August 2021: The cutovers for the polite and Plus pools are delayed again. We’re still working to ensure acceptable performance and stability before serving responses from the new application and infrastructure.