established · -1.3 marketcapability industrydomainschema

Registry

Score 26.6 / 100 51 providers +161 via APIs 273 APIs Search apis.io →
Workflows using this tag
Cortex XSOAR Incident Response Orchestration · Palo Alto Networks IoT Security Alert Investigation and Resolution · Palo Alto Networks Prisma Cloud Alert Triage and Dismissal · Palo Alto Networks Cortex XDR Endpoint Isolation and Verification · Palo Alto Networks Cortex XSIAM Incident-Driven Asset and XQL Hunt · Palo Alto Networks Prisma Cloud RQL Configuration and Asset Search · Palo Alto Networks Cortex XDR XQL Threat Hunt · Palo Alto Networks IoT Security Device Risk and Policy Recommendation · Palo Alto Networks
Business capabilities this tag reaches
Cybersecurity Management 2 Agent Infrastructure & Agentic Commerce 1 Blockchain & Digital Assets 1 Open Source Ecosystem 1

Providers using this tag (51)

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

Exemplar 3 Complete, well-documented, and agent-ready
Strong 6 Solid coverage with minor gaps
Developing 10 Usable, with meaningful gaps to close
Thin 14 Limited public surface area
Emerging 13 Early or largely undocumented
Minimal 5 Almost no public developer surface

APIs with this tag (272)

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 16 Complete, well-documented, and agent-ready
GitHub Packages APIThe GitHub Packages API lets you manage packages and package versions in GitHub Packages, a software packag...85.0HERE Registry APIThe Registry service is used for provisioning and claiming devices.79.0CueFrame Registry APIThe registry API from CueFrame — 5 operation(s) for registry.76.5Scalar RegistryScalar Registry provides centralized management and versioning of OpenAPI Documents, JSON Schemas, and Spec...76.4Adobe Suite Registry APIQuery and view the product taxonomy of Adobe Products and Services.75.9SCVD General Store Registry APIThe Registry API from SCVD General Store — 1 operation(s) for registry.75.6Kong MCP RegistryKong MCP Registry (launched February 2026) is an enterprise directory inside Kong Konnect for registering, ...73.8Replicated Registry APIThe registry API from Replicated — 1 operation(s) for registry.71.1AxonFlow Registry APIAI System Registry management70.7OCI Container Registry APIREST APIs for managing Docker container images in Oracle Cloud Infrastructure Container Registry, a managed...70.4CrawlCheck Registry APIThe Registry API from CrawlCheck — 5 operation(s) for registry.69.6HUD Registry APIThe registry API from HUD — 4 operation(s) for registry.69.1Palo Alto Networks Registry API{'$ref': 'desc/registry/registry.md'}68.8Benchling Registry APIManage registry objects. See our documentation on [how to register entities](https://docs.benchling.com/doc...68.4Relm Registry APICustom fields, enums, object types.68.3Gitea Package RegistryMulti-format package registry built into Gitea exposing client protocols for 24 ecosystems including Cargo,...67.2
Strong 15 Solid coverage with minor gaps
PixieBrix Registry APIThe registry API from PixieBrix — 2 operation(s) for registry.65.7Paperspace Container Registries APIManage container registry credentials used by Paperspace Deployments to pull private images, including a te...64.5Raiffeisenbank (Russia) Registry APIРеестр поставок62.92s Registry APIThe registry API from 2s — 2 operation(s) for registry.62.7GoHarbor Registry APIThe registry API from GoHarbor — 6 operation(s) for registry.62.5inite-ai Registry APIDiscovery reads over the global Domain Pack registry (shared across all tenants).62.3brick.blue Registry APIThe registry API from brick.blue — 6 operation(s) for registry.62.2JFrog Container RegistryJFrog Container Registry is a free, hybrid, and multi-cloud Docker registry and Helm chart repository for m...61.7npm Registry APIThe npm Registry API provides programmatic access to the npm package registry, the largest software registr...59.0Daggerverse Module IndexDaggerverse is the free, public index of Dagger Modules. Developers search for, browse, and consume reusabl...58.9Altimate AI REGISTRY APIThe REGISTRY API from Altimate AI — 4 operation(s) for registry.57.8Algenta Registry APIThe Registry API from Algenta — 1 operation(s) for registry.57.5stackresolve-dev Registry APIThe Registry API from stackresolve-dev — 1 operation(s) for registry.56.2satohub-ai Registry APIRegistered onchain agents and their passports.55.8IAB Tech Lab Registry APIThe Registry API from IAB Tech Lab — 1 operation(s) for registry.55.6
Developing 46 Usable, with meaningful gaps to close
Linktree Arbor RegistryArbor is Linktree's design system, published as a public HTTP component registry. Anonymous, unauthenticate...54.1Fortanix Registry APIThe Registry API from Fortanix — 4 operation(s) for registry.53.5OpenShift Image APIAPI for managing container images and image streams.53.2Arcee AI Registry APIThe Registry API from Arcee AI — 6 operation(s) for registry.52.1Danube Data APIDanube Data API as documented publicly: 29 operations. Contract generated from the documentation by API Eva...51.4Skills Directory Registry APIThe Registry API from Skills Directory — 2 operation(s) for registry.51.3Skills Directory Registry APIPublic, unauthenticated JSON API for CLI tools (designed for openskills) to list, search and fetch skills f...51.3Digital Asset Registry APIThe registry API from Digital Asset — 18 operation(s) for registry.51.2BrainstormRouter Registry APIThe registry API from BrainstormRouter — 1 operation(s) for registry.50.9Artifact Hub APIThe Artifact Hub REST API provides endpoints for searching and retrieving cloud-native packages across all ...50.7Buildpack RegistryThe Cloud Native Buildpacks registry indexes published buildpacks for discovery and reuse. It mirrors metad...49.2vlt Serverless Registry (vsr) APInpm-compatible package registry API implemented by vsr, vlt's serverless registry. Exposes package publish/...48.9PrivateDAO Registry APIThe Registry API from PrivateDAO — 2 operation(s) for registry.47.8Aisle Registry APIRegistry items and settled contribution ledger views.47.4Kubb Extension Registry APIPublic, read-only registry protocol of static JSON documents at https://kubb.dev/registry, listing reviewed...47.0Digital Ocean Registry APIThe Registry API from Digital Ocean — 14 operation(s) for registry.46.4Bazel Registry APIRegistry-wide metadata46.3Continue HubHosted registry where teams publish and share assistants, blocks (models, rules, prompts, docs, MCP servers...46.0MaIS Registry APIsUniversity IT's Registry web services — Account, Person, Student, CourseClass, Privilege and Workgroup — ov...45.8Dokploy Registry APIThe registry API from Dokploy — 7 operation(s) for registry.45.6DataCite membership — Fondren Library, Rice UniversityRice University is a DataCite direct member, registered 2017-11-13 as provider `rice` (symbol RICE) under F...45.0Karada AI Registry APIThe registry API from Karada AI — 4 operation(s) for registry.45.0ROR registration — Rice UniversityRice University's entry in the Research Organization Registry, ROR ID https://ror.org/008zs3103. It is the ...45.0Machine Realms Network APIPublic HTTP+JSON surface indexed at https://machinerealms.com/api/v1 and /.well-known/machine-realms.json: ...44.8Pulumi Registry APIThe Registry API from Pulumi — 12 operation(s) for registry.44.7University of Twente Library Crossref MembershipThe University Library registers DOIs with Crossref in the university's own name. Crossref member 2372, "Un...44.6NVIDIA Run:ai Registry APIUse an images registry to enable the listting of repositories and tags that can be used as a data source lo...44.4Terminal Use Registry APIThe Registry API from Terminal Use — 1 operation(s) for registry.43.6DataCite Membership — University of Bonn (BXBQ)The University of Bonn is a DataCite member organization and mints DOIs for its research data. Verified 202...43.4re3data Registry Record — bonndatabonndata is registered in re3data, the Registry of Research Data Repositories, as r3d100014222 with its own...43.4ROR Registry Record — University of BonnThe University of Bonn's Research Organization Registry identifier, https://ror.org/041nas322, verified liv...43.4HeyClaude Registry APIThe Registry API from HeyClaude — 9 operation(s) for registry.42.3Apache NiFi RegistryNiFi Registry provides a central location for storage and management of shared NiFi flow resources, enablin...41.8Crossref Member — Texas A&M University LibrariesTexas A&M University Libraries is Crossref member 14385, holding DOI prefix 10.21423 with 7,464 registered ...41.3DataCite Registrant — Texas A&M LibrariesTexas A&M Libraries is a DataCite consortium organization (provider CXAU) whose record carries Texas A&M Un...41.3ROR RegistrationTexas A&M University is registered in the Research Organization Registry as https://ror.org/01f5ytq51, with...41.3Bicycle Guide Registry APIRead-only REST control-plane API for the Bicycle Guide family's published-guide registry, taxonomy and capa...41.0Crossref Membership (member 4211)The University of Warsaw is Crossref member 4211, holding 31 DOI prefixes used across its journals and pres...41.0DataCite DOI Registration (REPOD / REPOD.DBUW)The University of Warsaw registers DOIs through DataCite. Its DataCite provider is `repod` — "University of...41.0ROR Registration (039bjqg32)The Research Organization Registry record for the University of Warsaw, https://ror.org/039bjqg32, resolvab...41.0TESSA Marketing & Technology Registry APIThe Registry API from TESSA Marketing & Technology — 1 operation(s) for registry.40.3Crossref Membership (members 36737 and 51378)REGISTRY MEMBERSHIP, recorded as a fact about the institution. Two Crossref member records carry the primar...40.2DataCite 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...40.2UW-IT Enterprise Web Services RegistryEnterprise Web Services (EWS) is UW-IT's secure collection of REST/SOAP web services that let enterprise bu...39.7DataCite Membership and DOI PrefixesThe University of Reading is a DataCite member — a fact about the institution, not a contract it operates. ...39.6ROR Organization RegistrationThe university's entry in the Research Organization Registry, https://ror.org/05v62cm79 — machine-readable ...39.6
Thin 95 Limited public surface area
Windows Registry APIAPI for accessing and manipulating the Windows Registry database.39.0Agno Registry APIThe Registry API from Agno — 1 operation(s) for registry.38.9Taylor's University Crossref MembershipTaylor's University Press is Crossref member 37785, registered at Subang Jaya, Selangor, Malaysia, holding ...38.9Taylor's University ROR RegistrationTaylor's University is registered in the Research Organization Registry as ror.org/0498pcx51, located Suban...38.9DataCite membership (provider GT, prefix 10.35090)Georgia Tech is a DataCite direct member. Verified 2026-09-01: https://api.datacite.org/providers/gt return...38.3ROR registration (01zkghx44)Georgia Institute of Technology is registered in the Research Organization Registry as https://ror.org/01zk...38.3imgpkgimgpkg bundles and distributes application configuration and container images as OCI artifacts via Docker r...38.2Imperio Registry APIThe Registry API from Imperio — 2 operation(s) for registry.38.0Crossref memberships (organic units)Five ULisboa organic units hold Crossref member IDs in their own right, minting DOIs for their journals ind...37.5DataCite repository membership (QWBT.ULISBOA)An active DataCite repository client registered to the university's central services for minting DOIs over ...37.5ROR organization identifierThe institution's registered ROR identifier — the canonical machine-readable organizational identity used a...37.5agentry-com Registry APIThe registry API from agentry-com — 7 operation(s) for registry.37.3DataCite Membership — Washington University in St. Louis LibrariesWashington University in St. Louis Libraries is a DataCite direct member, symbol WUSTL, registered 2018-08-...37.3ROR Registration — Washington University in St. LouisThe institution's Research Organization Registry record, https://ror.org/01yc7t268, carrying its display na...37.3Superchain RegistrySource-of-truth index of chains that are part of the Optimism Superchain — genesis files, deployment addres...37.3Bicycle Guide Guide Registry APIRead-only REST API over the bicycle.guide published-guide registry that Coaching Leader Guide belongs to - ...37.1Crossref 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...36.7ROR organization record (ror.org/03ke6d638)Universitas Gadjah Mada's Research Organization Registry identifier, https://ror.org/03ke6d638, verified li...36.7Kong MCP RegistryKong MCP Registry (launched February 2026) is an enterprise directory inside Kong Konnect for registering, ...36.6Crossref Membership — Charles UniversityCharles University holds two Crossref memberships: 5727, "Charles University in Prague, Karolinum Press" (t...35.9DataCite Registrant — Charles University (CUNI)Charles University is a DataCite registrant under provider symbol CUNI, memberType consortium_organization,...35.9ROR Registration — Charles UniversityCharles University is registered in the Research Organization Registry as https://ror.org/024d6js02, locate...35.9Verdaccio npm Registry APIThe Verdaccio npm Registry REST API implements the CommonJS Compliant Package Registry specification, provi...35.9Crossref Membership — UF George A. Smathers LibrariesThe University of Florida George A. Smathers Libraries is a Crossref member, id 17357, depositing DOIs unde...35.4ROR Registration — University of FloridaThe University of Florida's entry in the Research Organization Registry, https://ror.org/02y3ad647. A persi...35.4Crossref membershipGhent University is a Crossref member in its own name - member id 9286, DOI prefix 10.21825, registered in ...35.2ROR registrationGhent University is registered in the Research Organization Registry as https://ror.org/00cv9y106, distinct...35.2Crossref Membership — KIT LibraryThe KIT Library is a Crossref member in its own right, depositing DOIs under the prefix 10.58895. Verified ...35.1DataCite Membership — Karlsruhe Institute of Technology (KIT)KIT is a DataCite direct member, registering DOIs for its own research output rather than through a consort...35.1ROR Registry Record — Karlsruhe Institute of TechnologyKIT's Research Organization Registry identifier, https://ror.org/04t3en479, verified live 2026-09-01 agains...35.1Bicycle Guide Registry APIRead-only REST API over the Bicycle Guide published-guide registry that Counselor Guide is part of, coverin...35.0NAESB Electric Industry Registry (EIR) webRegistry Web ServicesThe NAESB Electric Industry Registry is the central repository of registry information used by the North Am...34.9Crossref membership (7569, 16151)Two Crossref member records belong to the institution. Member 7569, "University of Ottawa Library", holds p...34.0DataCite membership (UOTT)The University of Ottawa is a DataCite member and DOI registrant. Probed 2026-09-01: GET https://api.dataci...34.0ROR registration (03c4mmv16)The University of Ottawa is registered in the Research Organization Registry as https://ror.org/03c4mmv16, ...34.0pub.dev Packages APISearch for packages, retrieve package metadata, version details, publisher information, and scoring data fr...33.8Gcore Registry APIThe Registry API from Gcore — 13 operation(s) for registry.33.7Emory University in the Research Organization Registry (ROR)Emory University is registered in ROR, the open registry of research organization identifiers, under ROR ID...33.4ROR RegistrationKhalifa University of Science and Technology is registered in the Research Organization Registry as https:/...33.4Physical Capability Cloud Registry APIThe Registry API from Physical Capability Cloud — 7 operation(s) for registry.32.8Apache EventMesh Registry APIThe Registry API from Apache EventMesh — 1 operation(s) for registry.32.1DataCite 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...32.1ROR registration (Research Organization Registry)The institution's entry in the Research Organization Registry, ROR ID https://ror.org/03a1kwz48. A registry...32.1Puppet ForgePuppet Forge is the public module repository providing thousands of downloadable Puppet modules.32.0DataCite Membership and DOI RegistrationChalmers is a DataCite consortium organization (member id ojuo, joined 2020-09-14, ROR https://ror.org/040w...31.8ORCID in Chalmers ResearchThe Chalmers Research CRIS surfaces ORCID iDs on researcher profiles and links out to the ORCID registry, e...31.8ROR RegistrationChalmers University of Technology is registered in the Research Organization Registry as https://ror.org/04...31.8Glama MCP Server RegistryComprehensive index of 23,000+ MCP servers, 4,000+ managed connectors, and 169,000+ tools spanning 86 curat...31.3Research Organization Registry membershipIIT Kharagpur is registered in ROR as https://ror.org/03w5sq511, "Indian Institute of Technology Kharagpur"...30.5X402 AI 自助门店 Registry APIThe Registry API from X402 AI 自助门店 — 1 operation(s) for registry.29.7Crossref Member 11812 - Universidad de los AndesDOI registration membership at Crossref. Member 11812, primary-name "Universidad de los Andes", location "B...29.4DataCite Consortium Organization UDLAC - Universidad de los Andes ColombiaDOI registration membership at DataCite. Consortium organization UDLAC, displayName "Universidad de los And...29.4ROR 02mhbdp94 - Universidad de los AndesResearch Organization Registry record for the institution. ROR ID 02mhbdp94, established 1948, declared dom...29.4Apicurio RegistryOpen-source schema and API artifact registry backed by Red Hat (Apache 2.0). Stores OpenAPI, AsyncAPI, Avro...29.3Confluent Schema RegistryCentral repository with a RESTful interface for registering and evolving schemas in Avro, JSON Schema, and ...29.3Crossref DOI Registration MembershipTwo Kyushu University units are Crossref members registering DOIs under their own prefixes, verified agains...28.7DataCite DOI Registration MembershipKyushu University is a DataCite consortium organization — provider id `kyushuu`, symbol KYUSHUU, region APA...28.7ROR Organization RecordKyushu University's Research Organization Registry record, ROR ID 00p4k0j84, carrying the English, romanize...28.7Crossref Open Funder Registry entry — Indian Institute of ScienceIISc holds Crossref Open Funder Registry id 100007780. Verified 2026-09-01 — https://api.crossref.org/funde...28.6ROR registration — Indian Institute of ScienceIISc is registered in the Research Organization Registry as https://ror.org/04dese585. Verified 2026-09-01 ...28.6Crossref Membership — Massey UniversityMassey University registers DOIs with Crossref under member id 12895, prefixes 10.33217 and 10.54322, 314 D...28.5DataCite Membership — Massey UniversityMassey University is a DataCite member organization within the DataCite New Zealand consortium and mints DO...28.5ROR Registration — Massey UniversityMassey University's entry in the Research Organization Registry. This is the canonical machine-readable ide...28.5Crossref Membership (member 6347)The University of Waikato is a Crossref member — member id 6347, primary name "University of Waikato", DOI ...28.0ROR Registration (ror.org/013fsnh78)The University of Waikato is registered in the Research Organization Registry as https://ror.org/013fsnh78,...28.0Crossref Membership (eleven faculty and institute member records)Chulalongkorn registers Crossref DOIs through eleven separate member records, one per faculty, institute or...27.8DataCite Membership (consortium organization lygd)Chulalongkorn University is a DataCite consortium organization, provider id lygd, country TH, with one regi...27.8ROR Registration (https://ror.org/028wp3y58)Chulalongkorn University's Research Organization Registry record, carrying the Thai and English names, the ...27.8Crossref membershipThe university is Crossref member 29262 "University of Antwerp", holding DOI prefixes 10.52034 and 10.63028...27.7Elsewhere Registry APIThe registry API from Elsewhere — 23 operation(s) for registry.27.7ROR registrationResearch Organization Registry identifier https://ror.org/008x57b05, resolved live from https://api.ror.org...27.7ARMO Registry APIContainer registry scanning.27.5ROR registrationThe institution's entry in the Research Organization Registry, ROR ID 01nffqt88, carrying its canonical nam...27.5Crossref Member 25426 (prefix 10.15460)The Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky — the university library and publisher of...27.2Crossref membership via Liverpool University Press (member 2165)Liverpool University Press, the University's own publishing house, is Crossref member 2165. Verified 2026-0...27.2DataCite Registrant (prefix 10.25592)Universität Hamburg is a DataCite registrant. DOI prefix 10.25592 resolves to DataCite client tib.fdmuh, na...27.2DataCite repository membership (BL.LPOOL)The University of Liverpool is a DataCite repository member and has been since 2015. Verified 2026-09-01: h...27.2ORCID affiliation programme (UK ORCID consortium)The University of Liverpool Library operates an ORCID member integration through the Jisc-run UK ORCID cons...27.2ROR organisation record (04xs57h96)The institution's entry in the Research Organization Registry. Verified 2026-09-01: https://api.ror.org/v2/...27.2ROR Registration (00g30e956)Universität Hamburg is registered in the Research Organization Registry as https://ror.org/00g30e956. Membe...27.2Official MCP RegistryCommunity-driven, Anthropic-maintained registry that functions as an app store for MCP servers. Allows deve...26.7Pulse MCPThird-party MCP directory and news site. Maintains a sub-registry API that implements the Generic MCP Regis...26.7SmitheryThird-party MCP server registry and hosted runtime. Catalogs community-built MCP servers, generates install...26.7Crossref 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...26.6DataCite membership (repository uow.figshare)The University of Wollongong is a DataCite consortium organization, symbol UOW, provider id uow, created 20...26.6ROR registration (00jtmb277)The University of Wollongong is registered in the Research Organization Registry as https://ror.org/00jtmb2...26.6SKKU Crossref Membership (DOI registration)Two Sungkyunkwan University units are Crossref members in their own right and register DOIs under their own...26.6SKKU ROR Registration (organization identifier)Sungkyunkwan University is registered in the Research Organization Registry as https://ror.org/04q78tk20, w...26.6Crossref Membership — Vanderbilt University LibraryVanderbilt University Library is Crossref member 6384, DOI prefix 10.15695, with 2,375 DOIs registered (164...26.4DataCite Membership and Open Research Exeter DOI RegistrationExeter is a registered DataCite member - provider symbol VUEX, name "University of Exeter", memberType cons...26.4ROR registration — Nagoya UniversityNagoya University is registered in the Research Organization Registry as ROR ID https://ror.org/04chrp450, ...26.4ROR Registration — Vanderbilt UniversityVanderbilt University is registered in the Research Organization Registry as https://ror.org/02vm5rt34. Dis...26.4University of Exeter Press Crossref MembershipThe university's publishing arm is a Crossref member - member id 27616, primary name "University of Exeter ...26.4University of Exeter ROR RegistrationExeter is registered in the Research Organization Registry with ROR identifier https://ror.org/03yghzc09, t...26.4Arclan Registry APIThe Registry API from Arclan — 3 operation(s) for registry.26.2
Emerging 99 Early or largely undocumented
Crossref Membership — Leiden University PressLeiden University Press, Leiden University's own academic press, is Crossref member 22598 with 2,588 regist...25.9DataCite Consortium Membership (VIOJ)Leiden University is a DataCite consortium_organization with symbol VIOJ, organizationType academicInstitut...25.9ROR RegistrationLeiden University is registered in the Research Organization Registry as https://ror.org/027bh9e22, domain ...25.9NCUA CUSO RegistryA web-based system and searchable registry of Credit Union Service Organizations (CUSOs) that provide infor...25.7Crossref DOI Registration (UKM Press and UKM faculties)Three Crossref memberships are held by units of Universiti Kebangsaan Malaysia, together accounting for 16,...25.6ROR Organization RegistrationUniversiti Kebangsaan Malaysia is registered in the Research Organization Registry as https://ror.org/00bw8...25.6Crossref 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...25.1ROR registration (052g8jq94)UAB's entry in the Research Organization Registry, https://ror.org/052g8jq94, which resolves the institutio...25.1Crossref membership — Universiti Sains MalaysiaUSM is Crossref member 8963, registering DOIs under prefixes 10.21315 (USM Press journals such as the Malay...24.9ROR record — Universiti Sains MalaysiaUSM's Research Organization Registry identifier, https://ror.org/02rgb2k63. The identifier is the join key ...24.9Crossref MembershipThe University of Geneva is a Crossref member, id 13327, primary-name "Universite de Geneve". Recorded as a...24.6DataCite Repository MembershipUNIGE is a registered DataCite repository operator through the Swiss consortium (DataCite provider "opkb")....24.6ROR Organization IdentifierROR identifier https://ror.org/01swzsf04 for the University of Geneva. Notable because the institution's ow...24.6ROR REST APIThe ROR REST API provides programmatic access to the Research Organization Registry, enabling users to retr...24.5Annalist Registry APIThe Registry API from Annalist — 1 operation(s) for registry.24.3Crossref membership (member 37851)ASU is a Crossref member, id 37851, primary-name "Arizona State University", located in Tempe, AZ, depositi...24.3DataCite membership and repository registrationASU is a DataCite member (provider symbol ASU, memberType consortium_organization, created 2020-09-22) and ...24.3ROR organization record (03efmqc40)ASU's Research Organization Registry record, ror.org/03efmqc40, established 1885, status active, domain asu...24.3DataCite membership (provider HLQC)TU Darmstadt registers DOIs through DataCite. Verified live 2026-09-01 via api.datacite.org/providers/hlqc:...24.1ROR registrationTU Darmstadt is registered in the Research Organization Registry as https://ror.org/05n911h24, established ...24.1AlloyX Registry APIDiscovery registry operations (optional)23.6Crossref Open Funder Registry membershipWaseda University holds Crossref Open Funder Registry ID 501100004423, located in Japan, with 1,458 works a...23.6DataCite Membership — University of Bern (UNIBE)The University of Bern is a DataCite direct member, registering DOIs for its research outputs. Verified 202...23.6ROR registration (Research Organization Registry)Waseda University is registered in the Research Organization Registry as https://ror.org/00ntfnx83 — establ...23.6ROR Registry Record — University of BernThe University of Bern's Research Organization Registry identifier, https://ror.org/02k7v4d05, verified liv...23.6Crossref membership (DOI registrant)UNAL is a Crossref member in its own right — member id 6146, DOI prefix 10.15446 — with a second member rec...23.2Crossref membership (member 49418)Crossref member 49418, "Trinity College Dublin, the University of Dublin", holding prefix 10.69731. As of t...23.2DataCite consortium membership (provider TCD)Trinity is a DataCite consortium organization, symbol TCD, country IE, linked to https://ror.org/02tyrky19....23.2ROR organization identifierUNAL is registered in the Research Organization Registry as https://ror.org/059yx9a68 ("National University...23.2ROR organization record (02tyrky19)Trinity's Research Organization Registry identifier, https://ror.org/02tyrky19, the canonical machine-reada...23.2Nanjing University in the Crossref Open Funder RegistryNanjing University's entry in the Crossref Open Funder Registry as funder 501100008048, with 3,401 works re...22.9Nanjing University in the Research Organization Registry (ROR)Nanjing University's registration in ROR, the open registry of research organizations: ROR ID 01rxvg760, do...22.9Crossref DOI Registration MembershipThree Tohoku University units are Crossref members registering DOIs under their own prefixes, verified agai...22.2ROR Organization RecordTohoku University's Research Organization Registry record, ROR ID 01dq60k83, carrying the English, romanize...22.2Crossref Membership (member 7412)The Ohio State University Libraries is Crossref member 7412 with 4,927 registered DOIs, covering the journa...22.1DataCite Membership (GVUZ)The Ohio State University is a DataCite direct member, provider symbol GVUZ, active, linked to ROR https://...22.1ROR RegistrationThe Ohio State University is registered in the Research Organization Registry as https://ror.org/00rs6vg23,...22.1gulltoppr Registry APIThe registry API from gulltoppr — 3 operation(s) for registry.22.0Chainguard API v1Chainguard API v1 is the legacy REST API for the Chainguard platform, covering the same broad surface as v2...21.9Chainguard API v2Chainguard API v2 is the current REST API for the Chainguard platform. Endpoints cover Identity and Access ...21.9Chainguard Images Registry (cgr.dev)cgr.dev is the OCI-compliant distribution endpoint for Chainguard Images. Standard OCI and Docker tooling (...21.9Crossref membership (member 13551, prefix 10.53131)Sapienza is a Crossref member and DOI depositor. Verified live 2026-09-01 — https://api.crossref.org/member...21.4DataCite DOI registration (provider ROMAUNO / repository CRUI.UNIROMA1)Sapienza is a registered DataCite member and DOI registrant — a fact about the institution, not a contract ...21.4ROR organization identifier 02be6w209Sapienza is registered in the Research Organization Registry with ROR ID https://ror.org/02be6w209, names "...21.4Crossref member registration — Case Western Reserve University (member 7530)CWRU is a registered Crossref member, id 7530, primary-name "Case Western Reserve University", holding six ...20.9ROR organization record — Case Western Reserve University (051fd9666)CWRU's Research Organization Registry record, https://ror.org/051fd9666, established 1826, domain case.edu,...20.9Crossref membership and DOI prefixesThe University of Aberdeen is Crossref member 12669, located "Aberdeen, United Kingdom", holding DOI prefix...20.7DataCite membership and registered repositoryThe University of Aberdeen is a DataCite member — provider symbol HUGZ, memberType consortium_organization,...20.7Crossref member and DOI prefixQueen Mary is a Crossref member, id 11031, holding DOI prefix 10.26494. Recorded as a registry membership o...20.5Crossref Membership (LPPM ITB)ITB is a registered Crossref member through its Institute for Research and Community Services (LPPM), which...20.5DataCite member organisation and repository clientQueen Mary is a DataCite member organisation, provider id "iuar", memberType consortium_organization, linke...20.5ROR organisation identifierQueen Mary's Research Organization Registry identifier, https://ror.org/026zzn846. It is the join key that ...20.5ROR RegistrationITB is registered in the Research Organization Registry as https://ror.org/00apj8t60 ("Bandung Institute of...20.5Crossref Funder Registry entry (501100018692)ENS de Lyon is registered in the Crossref Open Funder Registry as https://doi.org/10.13039/501100018692, na...20.3ROR registry record (04zmssz18)ENS de Lyon's record in the Research Organization Registry, https://ror.org/04zmssz18, typed education and ...20.3Crossref member registrationTwo Hebrew University units are registered Crossref members with their own member ids: Hebrew University Ma...19.8Crossref 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: ...19.8Research Organization Registry (ROR) recordThe institution's ROR identifier, https://ror.org/03qxff017, resolved from the ROR v2 API on 2026-09-01. Th...19.8ROR registration — https://ror.org/026w31v75UTM is registered in the Research Organization Registry as ror.org/026w31v75, with domain utm.my, establish...19.8Crossref Member 5618 — Department of MathematicsCrossref membership held at department level, not institution level. Member 5618, "Department of Mathematic...19.7Handle System Prefix 2115Hokkaido University Library holds Handle System naming authority prefix 2115, which mints the persistent id...19.7JaLC DOI Prefix 10.14943Hokkaido University registers DOIs through JaLC, the Japan Link Center, under prefix 10.14943. Confirmed fr...19.7ROR Registry RecordResearch Organization Registry record https://ror.org/02e16g702, types education and funder, established 18...19.7Crossref 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...19.3ROR RegistrationThe institution's entry in the Research Organization Registry, the open identifier used to disambiguate res...19.3Crossref membership (AUB)AUB is a Crossref member in its own right — member id 13566, primary name "American University of Beirut", ...19.1Handle System prefix 10938 (AUB ScholarWorks)AUB holds Handle System prefix 10938, the persistent identifier namespace behind every AUB ScholarWorks rec...19.1ROR registration (AUB)The American University of Beirut is registered in the Research Organization Registry as https://ror.org/04...19.1Berachain Deployed ContractsRegistry of core protocol contract addresses on mainnet and Bepolia — Reward Vaults, BGT, HONEY, BERA wrapp...18.9Crossref membership (member 49493)IIT Madras is a Crossref member in its own right — member 49493, primary name "Indian Institute of Technolo...18.9ROR registration (03v0r5n49)IIT Madras is registered in the Research Organization Registry as https://ror.org/03v0r5n49, established 19...18.9Crossref membership — DOI prefix 10.47836Universiti Putra Malaysia is a Crossref member in its own right, member id 27687, holding DOI prefix 10.478...18.5ROR organization recordUniversiti Putra Malaysia holds ROR identifier https://ror.org/02e91jd64, cross-walked in the ROR record to...18.5Crossref membership (DOI prefix 10.61762)UTP registers DOIs with Crossref under its own prefix 10.61762 — 405 DOIs (113 current, 292 backfile) acros...18.3ROR registration (048g2sh07)The institution's Research Organization Registry record — the canonical machine-readable identity used by D...18.3Crossref 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...18.2DataCite DOI registration (provider UYEY, 32,291 DOIs)The University of Bologna is a registered DataCite member and DOI registrant — a fact about the institution...18.2ROR organization identifier 01111rn36The University of Bologna is registered in the Research Organization Registry with ROR ID https://ror.org/0...18.2Identity Digital Reports APIHTTP Reports API for accredited registrars: retrieves weekly domain and billing report files (CSV, gzip-com...17.9Crossref Member — Griffith UniversityGriffith University is Crossref member 5850. Two sub-unit members also resolve under the Griffith name — 50...17.4DataCite DOI Registrant — Griffith UniversityGriffith University is a DataCite provider, registering DOIs for its research outputs and datasets. Provide...17.4ROR registry entry (Research Organization Registry)Wuhan University is registered in ROR as https://ror.org/033vjfk17 (active, established 1893), cross-walked...17.4ROR Registry Record — Griffith UniversityGriffith University is registered in the Research Organization Registry as https://ror.org/02sc3r913. Recor...17.4Stacklok Registry APIThe registry API from Stacklok — 10 operation(s) for registry.17.4Crossref 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...16.9ROR Registration — Universidad Autónoma de MadridUAM's Research Organization Registry identifier, https://ror.org/01cby8j38, the canonical machine-readable ...16.9ROR Registration — Harbin Institute of TechnologyHIT is registered in the Research Organization Registry with ROR ID 01yqg2h08, carrying the names Harbin In...16.6UCSI University ROR RegistrationUCSI University is registered in the Research Organization Registry as ror.org/019787q29, active, located i...16.6Crossref Member 4386 (Universitas Indonesia)University of Indonesia is a Crossref member and DOI registrant. Verified against the Crossref REST API: ht...15.4Crossref 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...15.4ROR Identifier 0116zj450Research Organization Registry record for University of Indonesia, https://ror.org/0116zj450, verified agai...15.4ROR registration — Universitat de Barcelona (021018s57)The University of Barcelona's entry in the Research Organization Registry. ROR id https://ror.org/021018s57...15.4Crossref membershipThe University of Chile is a Crossref member, id 3330, primary name "Universidad de Chile", DOI prefix 10.5...15.1DataCite membership and repository registrationThe University of Chile is a DataCite member, not a DataCite operator. Evidenced 2026-09-01 from the DataCi...15.1ROR organization recordThe University of Chile's Research Organization Registry record: https://ror.org/047gc3g35, established 184...15.1ROR organization record (01b8kcc49)NCKU's Research Organization Registry record — ror.org/01b8kcc49, established 1931, status active, declared...14.6CARSI / eduGAIN Federation Registration (entity 671640)The same identity provider seen from the federation side. Tianjin University's IdP is registered in CARSI —...14.4Crossref 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...14.4ROR Registration (https://ror.org/012tb2g32)Tianjin University's Research Organization Registry record — the canonical machine-readable identifier for ...14.4
Minimal 1 Almost no public developer surface

Companies reaching this through an API (161)

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.

2s Adobe Suite agentry-com Agno Aisle Algenta AlloyX Altimate AI American University of Beirut Annalist Apache EventMesh Apache NiFi Arcee AI Arizona State University ARMO Armor Artifact Hub Autonomous University of Barcelona Autonomous University of Madrid AxonFlow Bandung Institute of Technology Bazel Benchling Berachain BrainstormRouter brick.blue Carvel Case Western Reserve University Chalmers University of Technology Charles University Chulalongkorn University Clinical Leader Guide Cloud Native Buildpacks Coaching Leader Guide Continue Counselor Guide CrawlCheck CueFrame Dagger Danube Data Digital Asset Digital Ocean Dokploy Donuts Elsewhere Emory University Events Fortanix Fusebit Gadjah Mada University
Show all 161 companies ↓
Gcore Georgia Institute of Technology Ghent University Gitea GitHub Glama GoHarbor Griffith University gulltoppr Harbin Institute of Technology Hebrew University of Jerusalem HERE HeyClaude Hokkaido University HUD IAB Tech Lab Imperio Indian Institute of Science Bangalore Indian Institute of Technology Kharagpur Indian Institute of Technology Madras inite-ai Karada AI Karlsruhe Institute of Technology Khalifa University Kong Kong AI Gateway Kubb Studio 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 Optimism Oracle Palo Alto Networks Paperspace Physical Capability Cloud PixieBrix Politecnico di Milano PrivateDAO pub.dev Pulumi Puppet Queen Mary University of London Raiffeisenbank (Russia) Red Hat OpenShift Relm Replicated Rice University Sapienza University of Rome satohub-ai SCVD General Store Skills Directory Stacklok stackresolve-dev Stanford University Sungkyunkwan University Taylor's University Technical University of Darmstadt Terminal Use TESSA Marketing & Technology 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 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 X402 AI 自助门店 École Normale Supérieure de Lyon

Score breakdown

Frequency
64.7
log-scaled weighted occurrences
Breadth
0.7
spread across providers
Quality lift
34.6
mean composite of providers using it
Cohesion
22.4
strength of nearest seed neighbor

Related tags

ROR 69 co-occurrences DOI 63 co-occurrences Crossref 53 co-occurrences Persistent Identifiers 49 co-occurrences University 78 co-occurrences Shibboleth 59 co-occurrences SAML 72 co-occurrences Scholarly Publishing 41 co-occurrences

Where this tag comes from

Api tag272
Provider tag51
Openapi tag42
Openapi op tag166

Markets provisional

Kin Score markets whose measured providers carry this tag. Share is the fraction of the market's measured providers that carry it — it describes the market, not this tag.

MarketShare of the market's providers
Container Registries (OCI Distribution)40%

Cohort brief

Auto-generated

The 50 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
50
of 51 in the catalog
Mean Kin Score
35.2
+11.1 vs catalog 24.1
Mean Agent Readiness
24.2
+10.1 vs catalog 14.1
Spread
4.5–76.4
median 33.6 · σ 18.4
How the 50 split by band
Exemplar 3Strong 6Developing 10Thin 14Emerging 13Minimal 4
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Contract Quality 35.5 18.6 +16.9 50
Operational Transparency 25.9 13.2 +12.7 50
Developer Ergonomics 36 24.5 +11.5 50
Discoverability 65.4 59.1 +6.3 50
Contract Governance 15.6 9.7 +5.9 50
Access Clarity 34.1 30 +4.1 50

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) 42% 18% +24
MCP server (first-party) 40% 16% +24
Agent Skills 0% 0% 0
OAuth scopes 16% 13% +3
Security 100% 99% +1
Arazzo workflows 0% 1% -1
Governance rules 66% 36% +30

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 Scalar 76.4
  2. 2 Eclipse Foundation 73
  3. 3 Azure Container Registry 68.5
  4. 4 Google Artifact Registry 65.4
  5. 5 NuGet 62.8
  6. 6 GitHub Container Registry 61.8
  7. 7 JFrog Container Registry 61.7
  8. 8 npm 59
  9. 9 x402 List API 58.1
  10. 10 Buildpacks Io 52.2
Top by Agent Readiness
  1. 1 Scalar 54.6
  2. 2 Smithery 50.3
  3. 3 Neuronto ARD Registry 48.1
  4. 4 Machine Realms 44.6
  5. 5 Eclipse Foundation 43.5
  6. 6 Auregistre 39.9
  7. 7 Data Galactica 38.8
  8. 8 Plexa 38.5
  9. 9 x402 List API 38.1
  10. 10 Google Artifact Registry 38
All 51 members of this roster resolve to a provider in the catalog; 50 carry a score (98%). The figures above describe the scored members only.
Coverage caveat. 27 of 50 scored members had under half their catalog-attributable points satisfied at all (catalog_earned / catalog_max < 0.5). They are INCLUDED in the mean above. A large share here means the cohort mean is partly a measurement of how far our enrichment reached, not only of how these providers publish.Generated from the catalog build of 14 November 2026, across 41591 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

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This tag
curl "https://apis.io/api/v1/tags/registry"
All tags
curl "https://apis.io/api/v1/tags?limit=25"
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