established · 0.0 market industry

Registry

Score 30.3 / 100 29 providers +129 via APIs 244 APIs Search apis.io →
Variants seen in the corpus: REGISTRYRegistryregistry

Providers using this tag (29)

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

Strong 4 Solid coverage with minor gaps
Developing 13 Usable, with meaningful gaps to close
Thin 8 Limited public surface area
Emerging 3 Early or largely undocumented
Unrated 1 Not yet scored

APIs with this tag (244)

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 5 Complete, well-documented, and agent-ready
Strong 14 Solid coverage with minor gaps
iDenfy Business Verification (KYB) APICompany verification across 180+ registries with ultimate beneficial owner identification, KYB form collect...66.2AWS CloudFormation Registry APIOperations for managing extension types in the CloudFormation Registry.61.5Open VSX Registry APIREST API for the Eclipse Open VSX Registry, an open-source alternative to the Visual Studio Marketplace for...61.5Paperspace Container Registries APIManage container registry credentials used by Paperspace Deployments to pull private images, including a te...61.0Replicated registry APIThe registry API from Replicated — 1 operation(s) for registry.60.6OCI Container Registry APIREST APIs for managing Docker container images in Oracle Cloud Infrastructure Container Registry, a managed...60.2PixieBrix Registry APIThe registry API from PixieBrix — 2 operation(s) for registry.60.0California Data Broker RegistryOfficial California Attorney General registry of data brokers required to register under Civil Code section...59.1University of Twente Library Crossref MembershipThe University Library registers DOIs with Crossref in the university's own name. Crossref member 2372, "Un...59.1Kong MCP RegistryKong MCP Registry (launched February 2026) is an enterprise directory inside Kong Konnect for registering, ...58.0JFrog Container RegistryJFrog Container Registry is a free, hybrid, and multi-cloud Docker registry and Helm chart repository for m...57.6Daggerverse Module IndexDaggerverse is the free, public index of Dagger Modules. Developers search for, browse, and consume reusabl...55.9x402 List APIPublic REST API (OpenAPI 3.1) providing access to the x402 services directory, uptime, pricing, facilitator...55.9EU Open Data Portal Registry API (hub-repo)The piveau hub-repo registry service: the DCAT-AP write surface of data.europa.eu. Manages catalogues, DCAT...55.4
Developing 78 Usable, with meaningful gaps to close
HY Organisation APIOrganisation Registry Public API — the University's organisational units and their hierarchy. The largest g...54.1MaIS Registry APIsUniversity IT's Registry web services — Account, Person, Student, CourseClass, Privilege and Workgroup — ov...54.1Network registry APIInterface to the University's network registry data (production instance). Declares its API key header as X...54.1Crossref 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...52.9ROR Registration (039bjqg32)The Research Organization Registry record for the University of Warsaw, https://ror.org/039bjqg32, resolvab...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...52.6Taylor's University Crossref MembershipTaylor's University Press is Crossref member 37785, registered at Subang Jaya, Selangor, Malaysia, holding ...51.4Taylor's University ROR RegistrationTaylor's University is registered in the Research Organization Registry as ror.org/0498pcx51, located Suban...51.4Armor Registry APIRegistry management operations51.1Artifact Hub APIThe Artifact Hub REST API provides endpoints for searching and retrieving cloud-native packages across all ...50.7Official MCP Registry APIThe Official MCP Registry is the community registry service for Model Context Protocol servers, run by the ...50.6Altimate AI REGISTRY APIThe REGISTRY API from Altimate AI — 4 operation(s) for registry.50.2Continue HubHosted registry where teams publish and share assistants, blocks (models, rules, prompts, docs, MCP servers...50.0Scalar RegistryScalar Registry provides centralized management and versioning of OpenAPI Documents, JSON Schemas, and Spec...49.4npm Registry APIThe npm Registry API provides programmatic access to the npm package registry, the largest software registr...49.3Dokploy registry APIThe registry API from Dokploy — 7 operation(s) for registry.48.9Crossref 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 ...48.6ROR organization identifierThe institution's registered ROR identifier — the canonical machine-readable organizational identity used a...48.6Agno Registry APIThe Registry API from Agno — 1 operation(s) for registry.48.5Bazel Registry APIRegistry-wide metadata47.7Buildpack RegistryThe Cloud Native Buildpacks registry indexes published buildpacks for discovery and reuse. It mirrors metad...47.4DataCite membership — Fondren Library, Rice UniversityRice University is a DataCite direct member, registered 2017-11-13 as provider `rice` (symbol RICE) under F...46.9ROR registration — Rice UniversityRice University's entry in the Research Organization Registry, ROR ID https://ror.org/008zs3103. It is the ...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...46.8ROR registration (01zkghx44)Georgia Institute of Technology is registered in the Research Organization Registry as https://ror.org/01zk...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...46.6ROR organization record (ror.org/03ke6d638)Universitas Gadjah Mada's Research Organization Registry identifier, https://ror.org/03ke6d638, verified li...46.6Digital Asset Registry APIThe registry API from Digital Asset — 18 operation(s) for registry.45.7Linktree Arbor RegistryArbor is Linktree's design system, published as a public HTTP component registry. Anonymous, unauthenticate...45.7Superchain RegistrySource-of-truth index of chains that are part of the Optimism Superchain — genesis files, deployment addres...45.6vlt Serverless Registry (vsr) APInpm-compatible package registry API implemented by vsr, vlt's serverless registry. Exposes package publish/...45.2Crossref 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...44.4ROR registration (03c4mmv16)The University of Ottawa is registered in the Research Organization Registry as https://ror.org/03c4mmv16, ...44.4Terminal Use Registry APIThe Registry API from Terminal Use — 1 operation(s) for registry.44.0Neuronto ARD Registry APISearch, explore and audit Agentic Resource Discovery entries: MCP servers, A2A agents, OpenAPI services and...43.7OpenShift Image APIAPI for managing container images and image streams.43.7Emory University in the Research Organization Registry (ROR)Emory University is registered in ROR, the open registry of research organization identifiers, under ROR ID...43.3Crossref 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,...43.1ROR Registration — Charles UniversityCharles University is registered in the Research Organization Registry as https://ror.org/024d6js02, locate...43.1ROR Registration — Washington University in St. LouisThe institution's Research Organization Registry record, https://ror.org/01yc7t268, carrying its display na...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...43.0ROR Registry Record — Karlsruhe Institute of TechnologyKIT's Research Organization Registry identifier, https://ror.org/04t3en479, verified live 2026-09-01 agains...43.0ROR registrationThe institution's entry in the Research Organization Registry, ROR ID 01nffqt88, carrying its canonical nam...42.9Fortanix Registry APIThe Registry API from Fortanix — 4 operation(s) for registry.42.8Pulumi Registry APIThe Registry API from Pulumi — 12 operation(s) for registry.42.8Crossref 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...42.7re3data Registry Record — bonndatabonndata is registered in re3data, the Registry of Research Data Repositories, as r3d100014222 with its own...42.7ROR RegistrationTexas A&M University is registered in the Research Organization Registry as https://ror.org/01f5ytq51, with...42.7ROR Registry Record — University of BonnThe University of Bonn's Research Organization Registry identifier, https://ror.org/041nas322, verified liv...42.7Crossref membershipGhent University is a Crossref member in its own name - member id 9286, DOI prefix 10.21825, registered in ...42.6ROR registrationGhent University is registered in the Research Organization Registry as https://ror.org/00cv9y106, distinct...42.6Arcee AI Registry APIThe Registry API from Arcee AI — 6 operation(s) for registry.42.3Benchling Registry APIRegister/unregister entities and browse registry schemas and dropdowns.42.1Research Organization Registry membershipIIT Kharagpur is registered in ROR as https://ror.org/03w5sq511, "Indian Institute of Technology Kharagpur"...41.9NVIDIA Run:ai Registry APIUse an images registry to enable the listting of repositories and tags that can be used as a data source lo...41.7DataCite Membership and DOI RegistrationChalmers is a DataCite consortium organization (member id ojuo, joined 2020-09-14, ROR https://ror.org/040w...41.5ORCID in Chalmers ResearchThe Chalmers Research CRIS surfaces ORCID iDs on researcher profiles and links out to the ORCID registry, e...41.5ROR RegistrationChalmers University of Technology is registered in the Research Organization Registry as https://ror.org/04...41.5Verdaccio npm Registry APIThe Verdaccio npm Registry REST API implements the CommonJS Compliant Package Registry specification, provi...40.8Apache NiFi RegistryNiFi Registry provides a central location for storage and management of shared NiFi flow resources, enablin...40.3Kong MCP RegistryKong MCP Registry (launched February 2026) is an enterprise directory inside Kong Konnect for registering, ...40.2Crossref Membership — UF George A. Smathers LibrariesThe University of Florida George A. Smathers Libraries is a Crossref member, id 17357, depositing DOIs unde...39.9ROR Registration — University of FloridaThe University of Florida's entry in the Research Organization Registry, https://ror.org/02y3ad647. A persi...39.9UW-IT Enterprise Web Services RegistryEnterprise Web Services (EWS) is UW-IT's secure collection of REST/SOAP web services that let enterprise bu...39.9Crossref 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...39.6ROR Registration — Massey UniversityMassey University's entry in the Research Organization Registry. This is the canonical machine-readable ide...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...39.3ROR registration (Research Organization Registry)The institution's entry in the Research Organization Registry, ROR ID https://ror.org/03a1kwz48. A registry...39.3
Thin 116 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,...39.2ROR Organization RegistrationUniversiti Kebangsaan Malaysia is registered in the Research Organization Registry as https://ror.org/00bw8...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...38.8ORCID affiliation programme (UK ORCID consortium)The University of Liverpool Library operates an ORCID member integration through the Jisc-run UK ORCID cons...38.8ROR organisation record (04xs57h96)The institution's entry in the Research Organization Registry. Verified 2026-09-01: https://api.ror.org/v2/...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...38.7ROR 02mhbdp94 - Universidad de los AndesResearch Organization Registry record for the institution. ROR ID 02mhbdp94, established 1948, declared dom...38.7imgpkgimgpkg bundles and distributes application configuration and container images as OCI artifacts via Docker r...38.3DataCite Membership and DOI PrefixesThe University of Reading is a DataCite member — a fact about the institution, not a contract it operates. ...38.1ROR Organization RegistrationThe university's entry in the Research Organization Registry, https://ror.org/05v62cm79 — machine-readable ...38.1Crossref Open Funder Registry entry — Indian Institute of ScienceIISc holds Crossref Open Funder Registry id 100007780. Verified 2026-09-01 — https://api.crossref.org/funde...37.9ROR registration — Indian Institute of ScienceIISc is registered in the Research Organization Registry as https://ror.org/04dese585. Verified 2026-09-01 ...37.9Windows Registry APIAPI for accessing and manipulating the Windows Registry database.37.9ARMO Registry APIContainer registry scanning.37.3NAESB Electric Industry Registry (EIR) webRegistry Web ServicesThe NAESB Electric Industry Registry is the central repository of registry information used by the North Am...37.1SKKU Crossref Membership (DOI registration)Two Sungkyunkwan University units are Crossref members in their own right and register DOIs under their own...36.8SKKU ROR Registration (organization identifier)Sungkyunkwan University is registered in the Research Organization Registry as https://ror.org/04q78tk20, w...36.8ROR registration — Nagoya UniversityNagoya University is registered in the Research Organization Registry as ROR ID https://ror.org/04chrp450, ...36.7Crossref 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")....36.6ROR Organization IdentifierROR identifier https://ror.org/01swzsf04 for the University of Geneva. Notable because the institution's ow...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...36.4ROR Organization RecordKyushu University's Research Organization Registry record, ROR ID 00p4k0j84, carrying the English, romanize...36.4Crossref Membership — Vanderbilt University LibraryVanderbilt University Library is Crossref member 6384, DOI prefix 10.15695, with 2,375 DOIs registered (164...35.7ROR Registration — Vanderbilt UniversityVanderbilt University is registered in the Research Organization Registry as https://ror.org/02vm5rt34. Dis...35.7Crossref Membership (member 6347)The University of Waikato is a Crossref member — member id 6347, primary name "University of Waikato", DOI ...35.5ROR Registration (ror.org/013fsnh78)The University of Waikato is registered in the Research Organization Registry as https://ror.org/013fsnh78,...35.5Crossref member registrationTwo Hebrew University units are registered Crossref members with their own member ids: Hebrew University Ma...35.1Research Organization Registry (ROR) recordThe institution's ROR identifier, https://ror.org/03qxff017, resolved from the ROR v2 API on 2026-09-01. Th...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...34.8ROR RegistrationKhalifa University of Science and Technology is registered in the Research Organization Registry as https:/...34.8ROR registrationResearch Organization Registry identifier https://ror.org/008x57b05, resolved live from https://api.ror.org...34.8ROR Registration (00g30e956)Universität Hamburg is registered in the Research Organization Registry as https://ror.org/00g30e956. Membe...34.8Crossref membership — Universiti Sains MalaysiaUSM is Crossref member 8963, registering DOIs under prefixes 10.21315 (USM Press journals such as the Malay...34.5ROR record — Universiti Sains MalaysiaUSM's Research Organization Registry identifier, https://ror.org/02rgb2k63. The identifier is the join key ...34.5Crossref DOI Registration MembershipThree Tohoku University units are Crossref members registering DOIs under their own prefixes, verified agai...34.0ROR Organization RecordTohoku University's Research Organization Registry record, ROR ID 01dq60k83, carrying the English, romanize...34.0ROR REST APIThe ROR REST API provides programmatic access to the Research Organization Registry, enabling users to retr...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...33.9ROR RegistrationLeiden University is registered in the Research Organization Registry as https://ror.org/027bh9e22, domain ...33.9Apache EventMesh Registry APIThe Registry API from Apache EventMesh — 1 operation(s) for registry.33.7DataCite membership (provider HLQC)TU Darmstadt registers DOIs through DataCite. Verified live 2026-09-01 via api.datacite.org/providers/hlqc:...32.9ROR registrationTU Darmstadt is registered in the Research Organization Registry as https://ror.org/05n911h24, established ...32.9Nanjing University in the Crossref Open Funder RegistryNanjing University's entry in the Crossref Open Funder Registry as funder 501100008048, with 3,401 works re...32.6Nanjing University in the Research Organization Registry (ROR)Nanjing University's registration in ROR, the open registry of research organizations: ROR ID 01rxvg760, do...32.6Crossref 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...32.5Puppet ForgePuppet Forge is the public module repository providing thousands of downloadable Puppet modules.32.5ROR organization identifier 02be6w209Sapienza is registered in the Research Organization Registry with ROR ID https://ror.org/02be6w209, names "...32.5University of Exeter Press Crossref MembershipThe university's publishing arm is a Crossref member - member id 27616, primary name "University of Exeter ...32.5University of Exeter ROR RegistrationExeter is registered in the Research Organization Registry with ROR identifier https://ror.org/03yghzc09, t...32.5Crossref 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...32.4Crossref Open Funder Registry membershipWaseda University holds Crossref Open Funder Registry ID 501100004423, located in Japan, with 1,458 works a...32.4ROR registration (052g8jq94)UAB's entry in the Research Organization Registry, https://ror.org/052g8jq94, which resolves the institutio...32.4ROR registration (Research Organization Registry)Waseda University is registered in the Research Organization Registry as https://ror.org/00ntfnx83 — establ...32.4Crossref 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...32.1ROR organization record (02tyrky19)Trinity's Research Organization Registry identifier, https://ror.org/02tyrky19, the canonical machine-reada...32.1ROR Registration (https://ror.org/028wp3y58)Chulalongkorn University's Research Organization Registry record, carrying the Thai and English names, the ...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 ...31.8ROR organization record (03efmqc40)ASU's Research Organization Registry record, ror.org/03efmqc40, established 1885, status active, domain asu...31.8NCUA CUSO RegistryA web-based system and searchable registry of Credit Union Service Organizations (CUSOs) that provide infor...31.0Crossref 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...30.9ROR registration (00jtmb277)The University of Wollongong is registered in the Research Organization Registry as https://ror.org/00jtmb2...30.9Crossref membership (DOI registrant)UNAL is a Crossref member in its own right — member id 6146, DOI prefix 10.15446 — with a second member rec...30.6ROR organization identifierUNAL is registered in the Research Organization Registry as https://ror.org/059yx9a68 ("National University...30.6DataCite Membership — University of Bern (UNIBE)The University of Bern is a DataCite direct member, registering DOIs for its research outputs. Verified 202...30.5ROR Registry Record — University of BernThe University of Bern's Research Organization Registry identifier, https://ror.org/02k7v4d05, verified liv...30.5Crossref Membership (LPPM ITB)ITB is a registered Crossref member through its Institute for Research and Community Services (LPPM), which...30.3Glama MCP Server RegistryComprehensive index of 23,000+ MCP servers, 4,000+ managed connectors, and 169,000+ tools spanning 86 curat...30.3ROR RegistrationITB is registered in the Research Organization Registry as https://ror.org/00apj8t60 ("Bandung Institute of...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 ...29.4ROR organization record — Case Western Reserve University (051fd9666)CWRU's Research Organization Registry record, https://ror.org/051fd9666, established 1826, domain case.edu,...29.4Crossref 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://...28.9ROR RegistrationThe Ohio State University is registered in the Research Organization Registry as https://ror.org/00rs6vg23,...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...28.8ROR organisation identifierQueen Mary's Research Organization Registry identifier, https://ror.org/026zzn846. It is the join key that ...28.8pub.dev Packages APISearch for packages, retrieve package metadata, version details, publisher information, and scoring data fr...28.7Crossref Funder Registry entry (501100018692)ENS de Lyon is registered in the Crossref Open Funder Registry as https://doi.org/10.13039/501100018692, na...28.6ROR registry record (04zmssz18)ENS de Lyon's record in the Research Organization Registry, https://ror.org/04zmssz18, typed education and ...28.6Berachain Deployed ContractsRegistry of core protocol contract addresses on mainnet and Bepolia — Reward Vaults, BGT, HONEY, BERA wrapp...28.4Crossref 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: ...28.4ROR registration — https://ror.org/026w31v75UTM is registered in the Research Organization Registry as ror.org/026w31v75, with domain utm.my, establish...28.4Crossref membership (member 49493)IIT Madras is a Crossref member in its own right — member 49493, primary name "Indian Institute of Technolo...28.3ROR registration (03v0r5n49)IIT Madras is registered in the Research Organization Registry as https://ror.org/03v0r5n49, established 19...28.3Accelsius Registry APIPost types, taxonomies and publication statuses registered on the site.28.2Crossref membership (AUB)AUB is a Crossref member in its own right — member id 13566, primary name "American University of Beirut", ...28.0Handle System prefix 10938 (AUB ScholarWorks)AUB holds Handle System prefix 10938, the persistent identifier namespace behind every AUB ScholarWorks rec...28.0ROR registration (AUB)The American University of Beirut is registered in the Research Organization Registry as https://ror.org/04...28.0ROR registry entry (Research Organization Registry)Wuhan University is registered in ROR as https://ror.org/033vjfk17 (active, established 1893), cross-walked...27.5Apicurio RegistryOpen-source schema and API artifact registry backed by Red Hat (Apache 2.0). Stores OpenAPI, AsyncAPI, Avro...27.3Confluent Schema RegistryCentral repository with a RESTful interface for registering and evolving schemas in Avro, JSON Schema, and ...27.3Crossref 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,...27.3ROR organization registrationThe University of Aberdeen is registered in the Research Organization Registry as https://ror.org/016476m91...27.3Official MCP RegistryCommunity-driven, Anthropic-maintained registry that functions as an app store for MCP servers. Allows deve...27.1Pulse MCPThird-party MCP directory and news site. Maintains a sub-registry API that implements the Generic MCP Regis...27.1SmitheryThird-party MCP server registry and hosted runtime. Catalogs community-built MCP servers, generates install...27.1Crossref 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...27.0ROR organization identifier 01111rn36The University of Bologna is registered in the Research Organization Registry with ROR ID https://ror.org/0...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...26.9ROR organization recordUniversiti Putra Malaysia holds ROR identifier https://ror.org/02e91jd64, cross-walked in the ROR record to...26.9
Emerging 31 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...26.1ROR registration (048g2sh07)The institution's Research Organization Registry record — the canonical machine-readable identity used by D...26.1ROR Registry Record — Griffith UniversityGriffith University is registered in the Research Organization Registry as https://ror.org/02sc3r913. Recor...26.1UCSI University ROR RegistrationUCSI University is registered in the Research Organization Registry as ror.org/019787q29, active, located i...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...25.9ROR Registration — Universidad Autónoma de MadridUAM's Research Organization Registry identifier, https://ror.org/01cby8j38, the canonical machine-readable ...25.9Crossref Member 4386 (Universitas Indonesia)University of Indonesia is a Crossref member and DOI registrant. Verified against the Crossref REST API: ht...25.5ROR Identifier 0116zj450Research Organization Registry record for University of Indonesia, https://ror.org/0116zj450, verified agai...25.5Chainguard API v1Chainguard API v1 is the legacy REST API for the Chainguard platform, covering the same broad surface as v2...25.2Chainguard API v2Chainguard API v2 is the current REST API for the Chainguard platform. Endpoints cover Identity and Access ...25.2Chainguard Images Registry (cgr.dev)cgr.dev is the OCI-compliant distribution endpoint for Chainguard Images. Standard OCI and Docker tooling (...25.2Crossref 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...24.9ROR RegistrationThe institution's entry in the Research Organization Registry, the open identifier used to disambiguate res...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...24.4ROR registration — Universitat de Barcelona (021018s57)The University of Barcelona's entry in the Research Organization Registry. ROR id https://ror.org/021018s57...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...24.1ROR organization recordThe University of Chile's Research Organization Registry record: https://ror.org/047gc3g35, established 184...24.1ROR Registration — Harbin Institute of TechnologyHIT is registered in the Research Organization Registry with ROR ID 01yqg2h08, carrying the names Harbin In...23.9CARSI / eduGAIN Federation Registration (entity 671640)The same identity provider seen from the federation side. Tianjin University's IdP is registered in CARSI —...23.4Crossref 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...23.4ROR Registration (https://ror.org/012tb2g32)Tianjin University's Research Organization Registry record — the canonical machine-readable identifier for ...23.4Crossref Member 5618 — Department of MathematicsCrossref membership held at department level, not institution level. Member 5618, "Department of Mathematic...23.2Handle System Prefix 2115Hokkaido University Library holds Handle System naming authority prefix 2115, which mints the persistent id...23.2JaLC DOI Prefix 10.14943Hokkaido University registers DOIs through JaLC, the Japan Link Center, under prefix 10.14943. Confirmed fr...23.2ROR Registry RecordResearch Organization Registry record https://ror.org/02e16g702, types education and funder, established 18...23.2Stacklok registry APIThe registry API from Stacklok — 10 operation(s) for registry.19.1Identity Digital Reports APIHTTP Reports API for accredited registrars: retrieves weekly domain and billing report files (CSV, gzip-com...16.9ROR organization record (01b8kcc49)NCKU's Research Organization Registry record — ror.org/01b8kcc49, established 1931, status active, declared...16.1

Companies reaching this through an API (129)

These companies publish an API, specification or operation carrying “Registry” 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.

Accelsius Adobe Suite Agentic AI Foundation Agno Altimate AI American University of Beirut Apache EventMesh Apache NiFi Arcee AI Arizona State University ARMO Armor Artifact Hub Autonomous University of Barcelona Autonomous University of Madrid AWS CloudFormation Bandung Institute of Technology Bazel Benchling Berachain Carvel Case Western Reserve University CCPA (California Consumer Privacy Act) Chalmers University of Technology Charles University Chulalongkorn University Cloud Native Buildpacks Continue Dagger Digital Asset Dokploy Donuts Emory University EU Open Data Portal Events Fortanix Gadjah Mada University Georgia Institute of Technology Ghent University Gitea GitHub Glama Griffith University Harbin Institute of Technology Hebrew University of Jerusalem Hokkaido University iDenfy Indian Institute of Science Bangalore Indian Institute of Technology Kharagpur Indian Institute of Technology Madras
Show all 129 companies ↓
Karlsruhe Institute of Technology Khalifa University Kong Kong AI Gateway Kyushu University Leiden University Linktree Massey University Microsoft Windows Model Context Protocol (MCP) NAESB Nagoya University Nanjing University National Cheng Kung University National Credit Union Administration (NCUA) National University of Colombia NVIDIA Run:ai Ohio State University OpenShift Optimism Oracle Palo Alto Networks Paperspace PixieBrix Politecnico di Milano pub.dev Pulumi Puppet Queen Mary University of London Replicated Rice University Sapienza University of Rome Stacklok Stanford University Sungkyunkwan University Taylor's University Technical University of Darmstadt Terminal Use Texas A&M University Tianjin University Tohoku University Trinity College Dublin Universiti Kebangsaan Malaysia Universiti Putra Malaysia Universiti Sains Malaysia Universiti Teknologi Malaysia Universiti Teknologi PETRONAS University of Aberdeen University of Antwerp University of Barcelona University of Bern University of Bologna University of Bonn University of Chile University of Exeter University of Florida University of Geneva University of Gothenburg University of Helsinki University of Indonesia University of Lisbon University of Liverpool University of Los Andes Colombia University of Navarra University of Ottawa University of Reading University of Twente University of Tübingen University of Waikato University of Warsaw University of Washington University of Wollongong Universität Hamburg Vanderbilt University vlt Waseda University Washington University in St. Louis Wuhan University École Normale Supérieure de Lyon

Score breakdown

Frequency
67.2
log-scaled weighted occurrences
Breadth
0.8
spread across providers
Quality lift
46.7
mean composite of providers using it
Cohesion
26.3
strength of nearest seed neighbor

Related tags

ROR 70 co-occurrences Crossref 53 co-occurrences DOI 63 co-occurrences Persistent Identifiers 50 co-occurrences University 79 co-occurrences Scholarly Publishing 41 co-occurrences Identity Federation 73 co-occurrences Shibboleth 61 co-occurrences

Where this tag comes from

Api tag245
Provider tag29
Openapi tag22
Openapi op tag131

Cohort brief

Auto-generated

The 28 providers in the APIs.io catalog tagged Registry, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers
28
all scored
Mean Kin Score
41.2
+17.3 vs catalog 23.9
Mean Agent Readiness
24.2
+12.2 vs catalog 12
Spread
11.8–61.5
median 42.4 · σ 10.6
How the 28 split by band
Exemplar 0Strong 4Developing 13Thin 8Emerging 3Minimal 0
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Contract Quality 42.9 19.8 +23.1 28
Operational Transparency 35.2 14 +21.2 28
Developer Ergonomics 41.2 23.4 +17.8 28
Access Clarity 43.8 26.5 +17.3 28
Discoverability 67.7 61.2 +6.5 28
Contract Governance 12.7 6.4 +6.3 28

A facet is averaged over the members that carry it, not over the whole cohort — the “Scored” column is that count. Averaging an absent facet as zero would score our own coverage gaps as the providers’ posture.

What this cohort publishes
ArtifactThis cohortCatalogDifference
MCP server (any) 28% 10% +18
MCP server (first-party) 24% 13% +11
Agent Skills 0% 0% 0
OAuth scopes 24% 11% +13
Security 97% 97% 0
Arazzo workflows 0% 2% -2
Governance rules 45% 14% +31

mcp_pct counts any mcp/ artifact including ones API Evangelist derived from the provider OpenAPI; mcp_first_party_pct counts only servers the provider publishes. Prefer the latter.

Top by Kin Score
  1. 1 Eclipse Foundation 61.5
  2. 2 JFrog Container Registry 57.6
  3. 3 x402 List API 55.9
  4. 4 Smithery 55.3
  5. 5 NuGet 49.7
  6. 6 Scalar 49.4
  7. 7 npm 49.3
  8. 8 Azure Container Registry 48.8
  9. 9 Smithery 45.9
  10. 10 Cloudsmith 44.5
Top by Agent Readiness
  1. 1 Eclipse Foundation 48.4
  2. 2 Neuronto ARD Registry 44.8
  3. 3 Scalar 37.2
  4. 4 Smithery 36.7
  5. 5 Hey API 34.7
  6. 6 JFrog Container Registry 31.1
  7. 7 x402 List API 30.3
  8. 8 Docker Hub 29.8
  9. 9 Quay 28.3
  10. 10 Smithery 28.1
All 29 members of this roster resolve to a scored provider in the catalog.Generated from the catalog build of 15 September 2026, across 27661 providers, using the same computation served by the APIs.io cohort API. Briefs are published for rosters of 5 or more scored providers; below that a distribution is not meaningful.

Work with this as data

Every tag here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for tags

7 MCP tools reach this
  • find_tagsBrowse and filter every tag in the catalog.
  • get_cohortThis tag as a scored cohort — every provider carrying it, with scores.
  • cohort_statsPRO — the distribution across this tag: mean, median, band split, adoption rates.
  • cohort_rankingsPRO — the leaderboard, on composite AND agent-readiness axes.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This tag
curl "https://apis.io/api/v1/tags/registry"
All tags
curl "https://apis.io/api/v1/tags?limit=25"
As a scored cohort
curl "https://apis.io/api/v1/cohorts/tag/registry"
The distribution (Pro)
curl "https://apis.io/api/v1/cohorts/tag/registry/stats" \
  -H "X-API-Key: $APIS_IO_KEY"

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