established · -0.2

DOI

Score 29.6 / 100 8 providers +107 via APIs 155 APIs Search apis.io →

Providers using this tag (8)

Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.

Developing 4 Usable, with meaningful gaps to close
Thin 4 Limited public surface area

APIs with this tag (155)

Ranked by the provider's API Evangelist rating — the Kin Score is scored per provider, not per API, so every API of a provider shares its band. How the rating works →

Exemplar 1 Complete, well-documented, and agent-ready
Strong 4 Solid coverage with minor gaps
Developing 53 Usable, with meaningful gaps to close
Crossref membership — University of MinnesotaThe University of Minnesota is Crossref member 10551, registering DOIs under prefixes 10.24926 and 10.64517...53.4DataCite membership — University of MinnesotaThe University of Minnesota is a DataCite direct member, symbol UMN, registered since 2018-12-19 and linked...53.4Crossref Membership (member 4211)The University of Warsaw is Crossref member 4211, holding 31 DOI prefixes used across its journals and pres...52.9DataCite DOI Registration (REPOD / REPOD.DBUW)The University of Warsaw registers DOIs through DataCite. Its DataCite provider is `repod` — "University of...52.9Crossref Membership (members 36737 and 51378)REGISTRY MEMBERSHIP, recorded as a fact about the institution. Two Crossref member records carry the primar...52.6DataCite DOI Registration (client SND.SPRKB, via the Swedish National Data Service)REGISTRY MEMBERSHIP, recorded as a fact about the institution, with no registry contract stored. The Univer...52.6Språkbanken Text Metadata API v3The catalogue over everything Språkbanken Text publishes — corpora, lexicons, models, analyses, utilities a...52.6Taylor's University Crossref MembershipTaylor's University Press is Crossref member 37785, registered at Subang Jaya, Selangor, Malaysia, holding ...51.4UvA/HvA Research Data Repository (Figshare tenancy)The shared research data repository of the University of Amsterdam and the Amsterdam University of Applied ...50.1DataSpace@HKUST Research Data Repository APIThe institutional research data repository, running Dataverse 6.1 on Payara. HKUST self-hosts it: dataspace...49.9HKUST Library Crossref DOI RegistrationHKUST Library is Crossref member 5801 and owns DOI prefix 10.14711, under which 14,453 records are register...49.9DataCite repository registration (UNIL data service)UNIL's membership of the DataCite DOI registry, not DataCite's contract. api.datacite.org/clients?query=uni...49.7Crossref MembershipUnicamp is Crossref member 27633, "Universidade Estadual de Campinas", registering DOIs for its SBU journal...49.1DataCite Membership and DOI RegistrationUnicamp is a DataCite provider (member) in its own right, not merely a client of one. Verified 2026-09-01: ...49.1Crossref memberships (organic units)Five ULisboa organic units hold Crossref member IDs in their own right, minting DOIs for their journals ind...48.6DataCite repository membership (QWBT.ULISBOA)An active DataCite repository client registered to the university's central services for minting DOIs over ...48.6McMaster University DataCite RegistrationMcMaster University's membership of DataCite as a consortium organisation within the Canadian DataCite cons...48.2McMaster University Library Crossref MembershipMcMaster University Library's Crossref membership, under which it mints DOIs on its own prefix 10.15173 for...48.2Illinois Data Bank Dataset MetadataThe campus research data repository, built and run in-house by the University Library (github.com/medusa-pr...48.1Macquarie University Research Data Repository (Figshare)The Macquarie University Research Data Repository is Figshare for Institutions, tenanted at figshare.mq.edu...47.7DataCite membership — Fondren Library, Rice UniversityRice University is a DataCite direct member, registered 2017-11-13 as provider `rice` (symbol RICE) under F...46.9DataCite membership (provider GT, prefix 10.35090)Georgia Tech is a DataCite direct member. Verified 2026-09-01: https://api.datacite.org/providers/gt return...46.8Crossref membership (member 9411, prefix 10.22146)Universitas Gadjah Mada is a Crossref member in its own name — member id 9411, DOI prefix 10.22146 — verifi...46.6University of Auckland Figshare Research Data Repository (tenant)The University of Auckland's Figshare research data repository, a vendor tenancy on the Figshare platform (...46.1Digital Library Collections and the 10.7916 DOI namespaceColumbia University Libraries' digital collections platform and the resolution target for Columbia's own DO...44.7Crossref membership (7569, 16151)Two Crossref member records belong to the institution. Member 7569, "University of Ottawa Library", holds p...44.4DataCite membership (UOTT)The University of Ottawa is a DataCite member and DOI registrant. Probed 2026-09-01: GET https://api.dataci...44.4IEEE Xplore DOI APIBatch metadata lookup endpoint that accepts up to 25 DOI (Digital Object Identifier) numbers per request an...44.4DataCite membership and repository registrationThe University of Freiburg is a DataCite member (symbol QVVC, country DE, consortium organization under the...44.0Borealis Dataverse — Université de Montréal collectionUniversité de Montréal's research-data collection inside Borealis, the Canadian national Dataverse. 452 Ude...43.9ScholarSphere APIPenn State's next-generation institutional repository, written by Penn State University Libraries and relea...43.5Crossref Membership — Charles UniversityCharles University holds two Crossref memberships: 5727, "Charles University in Prague, Karolinum Press" (t...43.1DataCite Membership — Washington University in St. Louis LibrariesWashington University in St. Louis Libraries is a DataCite direct member, symbol WUSTL, registered 2018-08-...43.1DataCite Registrant — Charles University (CUNI)Charles University is a DataCite registrant under provider symbol CUNI, memberType consortium_organization,...43.1Crossref Membership — KIT LibraryThe KIT Library is a Crossref member in its own right, depositing DOIs under the prefix 10.58895. Verified ...43.0DataCite Membership — Karlsruhe Institute of Technology (KIT)KIT is a DataCite direct member, registering DOIs for its own research output rather than through a consort...43.0RADAR4KIT Research Data Repository (RADAR tenancy)RADAR4KIT is KIT's interdisciplinary research-data repository for archiving and publishing research data wi...43.0Crossref Member — Texas A&M University LibrariesTexas A&M University Libraries is Crossref member 14385, holding DOI prefix 10.21423 with 7,464 registered ...42.7DataCite Membership — University of Bonn (BXBQ)The University of Bonn is a DataCite member organization and mints DOIs for its research data. Verified 202...42.7DataCite Registrant — Texas A&M LibrariesTexas A&M Libraries is a DataCite consortium organization (provider CXAU) whose record carries Texas A&M Un...42.7Crossref membershipGhent University is a Crossref member in its own name - member id 9286, DOI prefix 10.21825, registered in ...42.6DataCite Membership — NYCU Research Data ServiceNYCU is a DataCite direct member in its own name — provider gtfe — and operates the DataCite repository cli...42.4Crossref membership and DOI prefixKing Saud University is Crossref member 19827 and owns DOI prefix 10.33948, under which Crossref reports 1,...41.8PMC ID Converter APIThe PMC ID Converter API translates between PubMed Central identifiers (PMCID), PubMed identifiers (PMID), ...41.6DataCite Membership and DOI RegistrationChalmers is a DataCite consortium organization (member id ojuo, joined 2020-09-14, ROR https://ror.org/040w...41.5DataCite Event Data APITracks mentions, citations, and scholarly events related to registered DOIs. Enables discovery of how resea...40.7DataCite GraphQL APIAn alternative query interface for DOI metadata retrieval using the GraphQL query language. Currently suppo...40.7Tsinghua University DataCite DOI Registration and ResolutionTsinghua University holds a DataCite membership in its own name — symbol TSINGHUA, memberType direct_member...40.3Crossref Membership — UF George A. Smathers LibrariesThe University of Florida George A. Smathers Libraries is a Crossref member, id 17357, depositing DOIs unde...39.9Crossref Membership — al-Farabi Kazakh National UniversityAl-Farabi Kazakh National University is a Crossref member in its own name (member 11115) and registers DOIs...39.7Crossref Membership — Massey UniversityMassey University registers DOIs with Crossref under member id 12895, prefixes 10.33217 and 10.54322, 314 D...39.6DataCite Membership — Massey UniversityMassey University is a DataCite member organization within the DataCite New Zealand consortium and mints DO...39.6DataCite membership and DOI registration (member AWZY)The university is a DataCite member and DOI registrant — a fact about the institution, recorded here as a m...39.3
Thin 79 Limited public surface area
Crossref DOI Registration (UKM Press and UKM faculties)Three Crossref memberships are held by units of Universiti Kebangsaan Malaysia, together accounting for 16,...39.2Crossref membership via Liverpool University Press (member 2165)Liverpool University Press, the University's own publishing house, is Crossref member 2165. Verified 2026-0...38.8DataCite repository membership (BL.LPOOL)The University of Liverpool is a DataCite repository member and has been since 2015. Verified 2026-09-01: h...38.8Crossref Member 11812 - Universidad de los AndesDOI registration membership at Crossref. Member 11812, primary-name "Universidad de los Andes", location "B...38.7DataCite Consortium Organization UDLAC - Universidad de los Andes ColombiaDOI registration membership at DataCite. Consortium organization UDLAC, displayName "Universidad de los And...38.7data.bris Research Data Repositorydata.bris is the University of Bristol's own research data repository — institution-built and institution-h...38.3DataCite Membership and DOI PrefixesThe University of Reading is a DataCite member — a fact about the institution, not a contract it operates. ...38.1SKKU Crossref Membership (DOI registration)Two Sungkyunkwan University units are Crossref members in their own right and register DOIs under their own...36.8Crossref MembershipThe University of Geneva is a Crossref member, id 13327, primary-name "Universite de Geneve". Recorded as a...36.6DataCite Repository MembershipUNIGE is a registered DataCite repository operator through the Swiss consortium (DataCite provider "opkb")....36.6Yareta Ingest APIThe pre-ingest/ingest module of Yareta: deposit, validate and submit research data, reserve a DOI, and subm...36.6Crossref DOI Registration MembershipTwo Kyushu University units are Crossref members registering DOIs under their own prefixes, verified agains...36.4DataCite DOI Registration MembershipKyushu University is a DataCite consortium organization — provider id `kyushuu`, symbol KYUSHUU, region APA...36.4Crossref Memberships — Keio unitsTwo Keio units are Crossref members in their own right: member 1082, "Keio Journal of Medicine", DOI prefix...35.8DataCite Membership — provider `keio`Keio University is a registered DataCite provider — id `keio`, symbol KEIO, memberType consortium_organizat...35.8Keio Figshare Research Data RepositoryKeio holds a Figshare research-data repository, evidenced not by the platform host but by DataCite's own re...35.8Crossref Membership — Vanderbilt University LibraryVanderbilt University Library is Crossref member 6384, DOI prefix 10.15695, with 2,375 DOIs registered (164...35.7Crossref Membership (member 6347)The University of Waikato is a Crossref member — member id 6347, primary name "University of Waikato", DOI ...35.5Curtin University DOI Registration (DataCite)Curtin University is a DataCite member organisation and had minted 3,243 DOIs under its provider at time of...35.5Crossref member registrationTwo Hebrew University units are registered Crossref members with their own member ids: Hebrew University Ma...35.1LSE DOI Registration (DataCite)LSE is a registered DataCite provider — member identifier lcqr, "London School of Economics", memberType co...35.1Crossref Member 25426 (prefix 10.15460)The Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky — the university library and publisher of...34.8Crossref membershipThe university is Crossref member 29262 "University of Antwerp", holding DOI prefixes 10.52034 and 10.63028...34.8DataCite Registrant (prefix 10.25592)Universität Hamburg is a DataCite registrant. DOI prefix 10.25592 resolves to DataCite client tib.fdmuh, na...34.8ZFDM Research Data Repository APIRead API of the ZFDM Repository (Forschungsdatenrepositorium), operated by Universität Hamburg's Zentrum fü...34.8Crossref membership — Universiti Sains MalaysiaUSM is Crossref member 8963, registering DOIs under prefixes 10.21315 (USM Press journals such as the Malay...34.5Crossref DOI Registration MembershipThree Tohoku University units are Crossref members registering DOIs under their own prefixes, verified agai...34.0Crossref Membership — Leiden University PressLeiden University Press, Leiden University's own academic press, is Crossref member 22598 with 2,588 regist...33.9DataCite Consortium Membership (VIOJ)Leiden University is a DataCite consortium_organization with symbol VIOJ, organizationType academicInstitut...33.9Recherche Data Gouv — ENPC Dataverse Collection (tenant)ENPC's research-data repository is the collection with alias "ecoledesponts" (id 148870, dataverseType ORGA...33.2DataCite membership (provider HLQC)TU Darmstadt registers DOIs through DataCite. Verified live 2026-09-01 via api.datacite.org/providers/hlqc:...32.9Crossref membership (member 13551, prefix 10.53131)Sapienza is a Crossref member and DOI depositor. Verified live 2026-09-01 — https://api.crossref.org/member...32.5DataCite DOI registration (provider ROMAUNO / repository CRUI.UNIROMA1)Sapienza is a registered DataCite member and DOI registrant — a fact about the institution, not a contract ...32.5DataCite Membership and Open Research Exeter DOI RegistrationExeter is a registered DataCite member - provider symbol VUEX, name "University of Exeter", memberType cons...32.5University of Exeter Press Crossref MembershipThe university's publishing arm is a Crossref member - member id 27616, primary name "University of Exeter ...32.5ACM Digital Library Content Retrieval APIIndividual publications, conference papers, and journal articles in the ACM Digital Library are accessible ...32.4Crossref membership (member 3612, prefix 10.5565)UAB is a Crossref member in its own name. https://api.crossref.org/members/3612 returns primary-name "Unive...32.4PMC ID Converter APIThe PMC ID Converter API translates between different article identifier formats including PubMed IDs (PMID...32.3Crossref Membership (eleven faculty and institute member records)Chulalongkorn registers Crossref DOIs through eleven separate member records, one per faculty, institute or...32.1Crossref membership (member 49418)Crossref member 49418, "Trinity College Dublin, the University of Dublin", holding prefix 10.69731. As of t...32.1DataCite consortium membership (provider TCD)Trinity is a DataCite consortium organization, symbol TCD, country IE, linked to https://ror.org/02tyrky19....32.1DataCite Membership (consortium organization lygd)Chulalongkorn University is a DataCite consortium organization, provider id lygd, country TH, with one regi...32.1Crossref membership (member 37851)ASU is a Crossref member, id 37851, primary-name "Arizona State University", located in Tempe, AZ, depositi...31.8DataCite membership and repository registrationASU is a DataCite member (provider symbol ASU, memberType consortium_organization, created 2020-09-22) and ...31.8Crossref Membership (member 6332)The University of St Andrews Library is Crossref member 6332, holding 688 DOIs (151 current, 537 backfile) ...31.5DataCite Membership (provider NAHY)The University of St Andrews is a registered DataCite provider - id nahy, symbol NAHY, memberType consortiu...31.5Crossref DOI registration (institute-level memberships)Hanyang registers DOIs through Crossref at the research-institute level rather than centrally. Members and ...31.4Crossref Membership — member 25649Registered Crossref member 25649, "Instituto Tecnologico y de Estudios Superiores de Monterrey", Monterrey,...31.4DataCite Membership — ITESMTecnológico de Monterrey is a DataCite consortium organization, symbol ITESM, active, region AMER, country ...31.4Crossref membership (University of Wollongong Library, member 5587)The University of Wollongong Library is Crossref member 5587, holding the DOI prefix 10.14453 with 1,611 re...30.9DataCite membership (repository uow.figshare)The University of Wollongong is a DataCite consortium organization, symbol UOW, provider id uow, created 20...30.9Research Online (Figshare tenancy)Research Online is UOW's open access institutional repository, and since its 2025 platform migration it is ...30.9PANGAEA Data Download Service - Filter by DOIREST service for retrieving tabular dataset data filtered by dataset DOI and parameter values. Supports col...30.8Crossref membership (DOI registrant)UNAL is a Crossref member in its own right — member id 6146, DOI prefix 10.15446 — with a second member rec...30.6DataCite Membership — University of Bern (UNIBE)The University of Bern is a DataCite direct member, registering DOIs for its research outputs. Verified 202...30.5Taylor & Francis Content APIThe Taylor & Francis Content API provides programmatic access to eBook and chapter downloads from the taylo...30.4Crossref Membership (LPPM ITB)ITB is a registered Crossref member through its Institute for Research and Community Services (LPPM), which...30.3Crossref member registration — Case Western Reserve University (member 7530)CWRU is a registered Crossref member, id 7530, primary-name "Case Western Reserve University", holding six ...29.4DataCite Membership (VLEF)Humboldt-Universität zu Berlin is a DataCite member — provider symbol VLEF, memberType consortium_organizat...29.4Crossref membership (Qatar University Press)Qatar University Press is a Crossref member in its own right — member 11655, DOI prefix 10.29117, 2,533 DOI...29.3University of Alberta Library DOI Registration (DataCite)The University of Alberta Library is a registered DataCite repository — client id ualberta.library, symbol ...29.3University of Copenhagen DataCite Membership (XIZZ)The university is an active DataCite member — provider symbol XIZZ, memberType consortium_organization, isA...29.3Crossref Membership (member 14960, prefix 10.31009)UPF is a Crossref member and registers DOIs under its own prefix. Probed 2026-09-01: GET https://api.crossr...29.2Otago Scholarly Identifier Registrations (DataCite + Crossref)Otago's persistent-identifier registrations, readable through each registry's public REST API. Confirmed li...29.2CHRR Open Data Portal (CKAN)CKAN 2.10.10 open data portal operated by Ohio State's Center for Human Resource Research. The full CKAN Ac...28.9Crossref Membership (member 7412)The Ohio State University Libraries is Crossref member 7412 with 4,927 registered DOIs, covering the journa...28.9DataCite Membership (GVUZ)The Ohio State University is a DataCite direct member, provider symbol GVUZ, active, linked to ROR https://...28.9Crossref member and DOI prefixQueen Mary is a Crossref member, id 11031, holding DOI prefix 10.26494. Recorded as a registry membership o...28.8DataCite member organisation and repository clientQueen Mary is a DataCite member organisation, provider id "iuar", memberType consortium_organization, linke...28.8Crossref membership — Penerbit UTM Press (member 4787, prefix 10.11113)UTM's own university press is a Crossref member in its own right, not a customer of someone else's prefix: ...28.4Crossref membership (member 49493)IIT Madras is a Crossref member in its own right — member 49493, primary name "Indian Institute of Technolo...28.3Crossref membership (AUB)AUB is a Crossref member in its own right — member id 13566, primary name "American University of Beirut", ...28.0Crossref membership and DOI prefixesThe University of Aberdeen is Crossref member 12669, located "Aberdeen, United Kingdom", holding DOI prefix...27.3DataCite membership and registered repositoryThe University of Aberdeen is a DataCite member — provider symbol HUGZ, memberType consortium_organization,...27.3Crossref membership (member 32492, prefix 10.60923)The University of Bologna is a Crossref member and DOI depositor. Verified live 2026-09-01 — https://api.cr...27.0DataCite DOI registration (provider UYEY, 32,291 DOIs)The University of Bologna is a registered DataCite member and DOI registrant — a fact about the institution...27.0Crossref membership — DOI prefix 10.47836Universiti Putra Malaysia is a Crossref member in its own right, member id 27687, holding DOI prefix 10.478...26.9UCL Research Data Repository (Figshare tenancy)The UCL Research Data Repository is UCL's institutional data repository, used to deposit, archive, publish ...26.6Crossref membershipKAU holds two Crossref memberships in its own name. Member 2709, "King Abdulaziz University Scientific Publ...26.4
Emerging 18 Early or largely undocumented
Crossref Member — Griffith UniversityGriffith University is Crossref member 5850. Two sub-unit members also resolve under the Griffith name — 50...26.1Crossref membership (DOI prefix 10.61762)UTP registers DOIs with Crossref under its own prefix 10.61762 — 405 DOIs (113 current, 292 backfile) acros...26.1DataCite DOI Registrant — Griffith UniversityGriffith University is a DataCite provider, registering DOIs for its research outputs and datasets. Provide...26.1Crossref Membership — Servicio de Publicaciones de la UAMUAM's publications service is a Crossref member (member id 6788) and mints DOIs under prefix 10.15366, with...25.9Crossref Member 4386 (Universitas Indonesia)University of Indonesia is a Crossref member and DOI registrant. Verified against the Crossref REST API: ht...25.5USC DataCite DOI Registration (Provider Account)USC holds a DataCite direct membership in its own name and mints DOIs for eleven USC repositories under it....25.0Crossref Membership (DOI prefix 10.15581)The University of Navarra is a Crossref member and registers DOIs under its own prefix 10.15581 — 33,267 DO...24.9Crossref membership — Edicions de la Universitat de Barcelona (member 17854)The University of Barcelona press is a Crossref member in its own right: member id 17854, DOI prefixes 10.1...24.4Crossref membershipThe University of Chile is a Crossref member, id 3330, primary name "Universidad de Chile", DOI prefix 10.5...24.1DataCite membership and repository registrationThe University of Chile is a DataCite member, not a DataCite operator. Evidenced 2026-09-01 from the DataCi...24.1UChile Research Data Repository API (Dataverse)The University of Chile self-hosts a Dataverse installation at datos.uchile.cl on its own network (200.89.7...24.1Crossref Membership (member 34483, prefix 10.55582)Tianjin University is a Crossref member in its own right — member id 34483, DOI prefix 10.55582 — and is al...23.4Crossref Member 5618 — Department of MathematicsCrossref membership held at department level, not institution level. Member 5618, "Department of Mathematic...23.2JaLC DOI Prefix 10.14943Hokkaido University registers DOIs through JaLC, the Japan Link Center, under prefix 10.14943. Confirmed fr...23.2Queen's University Belfast Research Portal — DataCite repository clientQueen's University Belfast is a DataCite consortium organization (provider jxtg) and has operated a registe...22.0Deakin University Crossref membership (member 8935)Deakin is a Crossref member depositing its own DOIs under prefix 10.21153 — 1,303 works, predominantly jour...20.0Deakin University DataCite repository (ARDCX.DEAKIN)Deakin's own DataCite repository account, held under the ARDC (Australian Research Data Commons) consortium...20.0Zenodo Software PublishingThe GitHub-Zenodo integration uses CITATION.cff metadata when publishing a release as a citable software re...19.4

Companies reaching this through an API (107)

These companies publish an API, specification or operation carrying “DOI” but do not classify their business under it. Listed unranked and kept out of the count above, because one tagged operation is not a statement about what a company does.

Al-Farabi Kazakh National University American University of Beirut Arizona State University Autonomous University of Barcelona Autonomous University of Madrid Bandung Institute of Technology Case Western Reserve University Chalmers University of Technology Charles University Chulalongkorn University Citation File Format Columbia University Curtin University Deakin University Gadjah Mada University Georgia Institute of Technology Ghent University Griffith University Hanyang University Hebrew University of Jerusalem Hokkaido University Hong Kong University of Science and Technology Humboldt-Universität zu Berlin IEEE Xplore Indian Institute of Technology Madras Karlsruhe Institute of Technology Keio University King Abdulaziz University King Saud University Kyushu University Leiden University London School of Economics and Political Science Macquarie University Massey University McMaster University National Center for Biotechnology Information (NCBI) National University of Colombia National Yang Ming Chiao Tung University Ohio State University PANGAEA Pennsylvania State University PubMed Qatar University Queen Mary University of London Queen's University Belfast Rice University Sapienza University of Rome Sungkyunkwan University Taylor & Francis Taylor's University
Show all 107 companies ↓

Score breakdown

Frequency
58.4
log-scaled weighted occurrences
Breadth
0.2
spread across providers
Quality lift
42.9
mean composite of providers using it
Cohesion
42.2
strength of nearest seed neighbor

Related tags

ROR 75 co-occurrences Persistent Identifiers 69 co-occurrences Crossref 66 co-occurrences DataCite 62 co-occurrences Scholarly Publishing 51 co-occurrences Identity Federation 95 co-occurrences OAI-PMH 90 co-occurrences University 102 co-occurrences

Where this tag comes from

Provider tag8
Api tag155

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