Search worksSearch everything registered with Crossref: around 170 million journal articles, book chapters, preprints, conference papers, datasets, dissertations and standards, and narrow it by type, date, journal, publisher, funder, grant, author ORCID iD, or what the record contains. This is the everyday search, and the one to reach for to find a DOI from a citation, to build a reading list on a topic, or to watch for newly deposited work in a field.
Get work by DOILook up one DOI and get everything the publisher deposited for it: title, authors with their ORCID iDs and affiliations, journal, volume, issue, pages, every publication date, the licence, full-text links, funding, the abstract where there is one, and the whole reference list. Accepts a bare DOI, a doi.org link, or a DOI copied out of a citation.
Check which agency owns a DOIFind out which registration agency a DOI belongs to. Not every DOI is a Crossref DOI: datasets are usually DataCite, and there are agencies for medical, Japanese and Korean content, and only Crossref DOIs have metadata in this API. Use it before a lookup so a workflow can route a non-Crossref DOI elsewhere instead of failing on it.
Format a citationTurn a DOI into a ready-to-paste citation. Pick a style (APA, MLA, Chicago, Harvard, IEEE, Nature and others) and get the reference back as text, or choose BibTeX, RIS, CSL JSON or Crossref XML to hand to a reference manager or a typesetting pipeline. Crossref renders the citation itself, so nothing has to be assembled from the raw metadata.
Search journalsFind journals by title or publisher, and get each one's ISSNs, how many DOIs it has registered, and how complete its metadata is: whether it deposits abstracts, ORCID iDs, licences, funding and reference lists. Use it to turn a journal name into the ISSN the other actions take.
Get journal by ISSNGet one journal's record: its title, publisher, both ISSNs, how many DOIs it has registered per year, and a breakdown of how much of its metadata carries abstracts, ORCID iDs, licences, funding and references. Handy for judging how trustworthy a search over that journal will be.
List a journal's worksList everything published in one journal, with the same search, filter and sort options as the main search. Sort by publication date for a table of contents, or filter on the deposited date to catch what the journal has registered since you last looked.
Search fundersSearch the Funder Registry, the standard list of research funding bodies worldwide, with their alternative names and the sub-organisations beneath them. Use it to turn a funder's name into the ID the works actions filter on.
Get funderGet one funder's record: its official and alternative names, country, how many works credit it directly, how many credit it or anything beneath it, and the whole tree of its sub-organisations, the directorates, institutes and programmes that fund in its name.
List a funder's worksList everything that credits one funder, with the same search, filter and sort options as the main search. This is how a funder or an institution reports on the output of its grants; add a grant number to narrow it to a single award.
Search publishersSearch Crossref's member publishers. Each record carries the DOI prefixes the publisher owns, how many DOIs it has registered, and how much of its metadata includes abstracts, ORCID iDs, licences, funding and references. Search by name, or give a DOI prefix to find out who owns it.
Get publisherGet one publisher's record: its names, location, every DOI prefix it owns, how many DOIs it has registered by year, and the metadata-quality scores that say how often it deposits abstracts, ORCID iDs, licences, funding and reference lists.
List a publisher's worksList everything one publisher has registered, with the same search, filter and sort options as the main search. Filter on the deposited date to see what a publisher has added lately, or on a work type to see only its books or only its preprints.
Get DOI prefix ownerFind out which Crossref member owns a DOI prefix, the 10.1038 in 10.1038/nature12373. Prefixes outlive imprints and acquisitions, so this is how you tell who actually registered a DOI, and it works from a whole DOI as well as from the prefix on its own.
List a DOI prefix's worksList everything registered under one DOI prefix, with the same search, filter and sort options as the main search. A publisher usually owns several prefixes, so this is narrower than listing a publisher's works; it is the right one when you care about a specific imprint.
List work typesList every kind of work Crossref registers: journal article, book chapter, posted content (preprints), dataset, dissertation, peer review, standard, grant and the rest, with the ID each one is filtered by.
Get work typeGet one work type's ID and display label, the pair to show someone, or to check a type ID before filtering a search on it.
List works of one typeList every work of one type, with the same search, filter and sort options as the main search. Point it at posted content for preprints, at dataset for research data, or at peer-review for published review reports.
List licencesList every licence URL publishers have attached to their work, with the number of works using each one. Use it to find the exact licence URL to filter a search on: publishers spell the same Creative Commons licence several different ways, and a filter has to match exactly.