Crossref

Returns which DOI registration agency owns a DOI - crossref, datacite, medra and so on - in a tiny response.

Returns one Funder Registry entry: canonical name, country, alternate names, its place in the funder hierarchy and the ids of its sub-organisations.

Searches the Funder Registry and returns funder id, name, country and alternate names for each match.

Returns a page of work records whose funding metadata names this funder, with the total count of acknowledged outputs.

Returns one journal's record: title, publisher, all its ISSNs, total DOI counts and a year-by-year breakdown of deposits, licences and full-text links.

Searches Crossref's journal titles and returns each with its ISSNs, publisher, DOI counts and per-year breakdowns of coverage.

Returns a page of full work records published in one journal, identified by ISSN, with total-results for the journal's whole corpus.

Returns one Crossref member: its names, DOI prefixes, total current and backfile DOI counts, and year-by-year breakdowns of what it deposits (licences, references, ORCIDs, full-text links).

Searches Crossref member organisations - the publishers and societies that register DOIs - returning each member's id, names, prefixes and deposit statistics.

Returns a page of work records registered by one Crossref member, with total-results for that publisher's whole corpus.

Returns which Crossref member currently owns a DOI prefix, with the member's name and member URL, in a 230-byte response.

Returns the 30 content types Crossref recognises - journal-article, book-chapter, dataset, preprint, peer-review and so on - as id plus label.

Returns the full Crossref metadata record for one DOI: title, authors with ORCIDs and affiliations, container title, publisher, issue/volume/page, dates, funders, licences, reference list and citation count.

Searches the ~165 million Crossref registered works and returns a page of full metadata records plus total-results, with optional facets.