emerging · -2.0 market industry

Identifiers

Score 20.7 / 100 5 providers +50 via APIs 62 APIs Search apis.io →
Business capabilities this tag reaches
Cybersecurity Management 1

Providers using this tag (5)

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

Thin 3 Limited public surface area
MusicBrainzMusicMetadataEncyclopediaOpen Data16 APIs37.9CrossrefCitationsDOIFunders1 API33.7PlacekeyLocationGeocodingAddress Matching1 API28.4
Emerging 2 Early or largely undocumented
RORResearchOrganizationRegistry1 API25.2GS1LogisticsSupply ChainBelgiumStandards1 API20.4

APIs with this tag (62)

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
HubSpot Identifiers APIThe Identifiers API from HubSpot — 2 operation(s) for identifiers.93.2Twilio Identifiers APIEvery customer interaction must be attached to the correct profile. Conversation Memory manages this throug...91.6Salesforce Identifiers APIThe Identifiers API from Salesforce — 6 operation(s) for identifiers.88.8Shopify Identifiers APIThe Identifiers API from Shopify — 75 operation(s) for identifiers.83.0Optimizely Identifiers APIThe Identifiers API from Optimizely — 3 operation(s) for identifiers.81.3
Strong 3 Solid coverage with minor gaps
Factset Identifiers APIThe Identifiers API from Factset — 2 operation(s) for identifiers.62.0Zaius Identifiers APIThe Identifiers API from Zaius — 3 operation(s) for identifiers.61.1FOLIO Identifiers APIThe Identifiers API from FOLIO — 3 operation(s) for identifiers.57.6
Developing 14 Usable, with meaningful gaps to close
Factiva Code APIEnables retrieval of codes necessary to search for companies, currencies, exchanges, locations, industries,...52.7Avaya Identifiers APIRepresents the criteria with which a customer may be identified (Phone numbers, e-mail addresses, social me...52.5pVerify MBI Lookup APILook up a Medicare Beneficiary Identifier for a patient from demographic data, for providers who need the M...51.2Crossref membership — University of MacauThe University of Macau is Crossref member 53643, with DOI prefix 10.64219 and 21 DOIs registered as of 202...50.8ROR identifier — University of MacauResearch Organization Registry identifier for the University of Macau, carrying its English, Portuguese and...50.8PermID Entity Search APIRESTful API for searching and discovering organizations, equity instruments, and equity quotes using PermID...48.3PermID Record Matching APIRESTful API for matching unstructured entity records to PermID identifiers. Enables concordance by mapping ...48.3Symbology APIDiscovery Symbology API for concordance, navigation, and discovery of financial content. Enables mapping fr...48.3ROR organisation registrationUNIL's entry in the Research Organization Registry, https://ror.org/019whta54, established 1537, domain uni...45.0Stanford University Identifiers APIIdentifier operations44.8Telenor Sverige Identifiers APIIdentifiers are unique strings associated with various entities in the OSF system, such as project nodes, r...44.5University of Wisconsin-Madison Identifiers APIThe identifiers API from University of Wisconsin-Madison — 1 operation(s) for identifiers.42.9OSF Identifiers APIIdentifiers are unique strings associated with various entities in the OSF system, such as project nodes, r...42.1University of Twente Library Crossref MembershipThe University Library registers DOIs with Crossref in the university's own name. Crossref member 2372, "Un...41.5
Thin 19 Limited public surface area
B3 ISIN APIISIN issuance and management for financial instruments - B3 is the Brazilian numbering agency - covering IS...38.7Asset Identifier Service (AIS)The USGS Asset Identifier Service (AIS) allows USGS personnel to reserve, register, publish, and manage USG...38.6ROR RegistrationTexas A&M University is registered in the Research Organization Registry as https://ror.org/01f5ytq51, with...38.1MusicBrainz Identifiers APINon-MBID lookups by ISRC, ISWC, and DiscID.37.9ROR registration (01zkghx44)Georgia Institute of Technology is registered in the Research Organization Registry as https://ror.org/01zk...36.7PMC ID Converter APIThe PMC ID Converter API translates between PubMed Central identifiers (PMCID), PubMed identifiers (PMID), ...35.4Emory University in the Research Organization Registry (ROR)Emory University is registered in ROR, the open registry of research organization identifiers, under ROR ID...34.8ROR registrationGhent University is registered in the Research Organization Registry as https://ror.org/00cv9y106, distinct...33.1Corbado Identifiers APIManage login identifiers (email, phone, username) attached to a user.31.9Terrain Discovery Environment API Identifiers APIPermanent identifier (DOI) requests31.5Research Organization Registry membershipIIT Kharagpur is registered in ROR as https://ror.org/03w5sq511, "Indian Institute of Technology Kharagpur"...31.3Healthcare Identifiers (HI) ServiceThe national Healthcare Identifiers Service, providing unique identifiers for individuals (IHI), healthcare...30.8Crossref 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 ...28.6ROR registrationThe institution's entry in the Research Organization Registry, ROR ID 01nffqt88, carrying its canonical nam...27.8Crossref DOI registration (institute-level memberships)Hanyang registers DOIs through Crossref at the research-institute level rather than centrally. Members and ...27.7ROR registrationResearch Organization Registry identifier for Hanyang University, the stable machine-readable identity othe...27.7ROR registration — Nagoya UniversityNagoya University is registered in the Research Organization Registry as ROR ID https://ror.org/04chrp450, ...27.3STRING Identifiers APIMap protein names and synonyms to STRING identifiers27.3
Emerging 21 Early or largely undocumented
ROR REST APIThe ROR REST API provides programmatic access to the Research Organization Registry, enabling users to retr...25.2ROR RegistrationKhalifa University of Science and Technology is registered in the Research Organization Registry as https:/...25.0Otreeba Identifiers APIThe Identifiers API from Otreeba — 1 operation(s) for identifiers.24.8Nanjing University in the Crossref Open Funder RegistryNanjing University's entry in the Crossref Open Funder Registry as funder 501100008048, with 3,401 works re...24.7Nanjing University in the Research Organization Registry (ROR)Nanjing University's registration in ROR, the open registry of research organizations: ROR ID 01rxvg760, do...24.7Crossref Membership (member 6347)The University of Waikato is a Crossref member — member id 6347, primary name "University of Waikato", DOI ...24.4ROR Registration (ror.org/013fsnh78)The University of Waikato is registered in the Research Organization Registry as https://ror.org/013fsnh78,...24.4Reactome Identifiers APIQueries for multiple identifiers22.9Open Civic DataOpen Civic Data is a community-maintained set of specifications and shared identifiers for civic informatio...22.2ID Mapping REST APIMaps identifiers between UniProt accessions and over 150 external database identifiers (e.g., RefSeq, Ensem...21.0SpruceID Identifiers APIDID resolution implementing the W3C DID Resolution HTTP binding.20.5GS1 Digital Link Resolver (id.gs1.org)GS1 AISBL's own live, unauthenticated GS1-Conformant Resolver, implementing the GS1-Conformant Resolver Sta...20.4Crossref Funder Registry entry (501100018692)ENS de Lyon is registered in the Crossref Open Funder Registry as https://doi.org/10.13039/501100018692, na...20.1ROR registry record (04zmssz18)ENS de Lyon's record in the Research Organization Registry, https://ror.org/04zmssz18, typed education and ...20.1Crossref Member 5618 — Department of MathematicsCrossref membership held at department level, not institution level. Member 5618, "Department of Mathematic...20.0ROR Registry RecordResearch Organization Registry record https://ror.org/02e16g702, types education and funder, established 18...20.0Medrio Subjects APICreate, list, and update clinical trial subjects within a study; manage Medrio and study subject identifier...17.9Sonyflake Distributed ID GeneratorSonyflake is a Go library producing 63-bit unique IDs inspired by Twitter's Snowflake but tuned for longer ...17.4ROR Registration — Harbin Institute of TechnologyHIT is registered in the Research Organization Registry with ROR ID 01yqg2h08, carrying the names Harbin In...16.7ROR registration — Universitat de Barcelona (021018s57)The University of Barcelona's entry in the Research Organization Registry. ROR id https://ror.org/021018s57...16.5ROR organization record (01b8kcc49)NCKU's Research Organization Registry record — ror.org/01b8kcc49, established 1931, status active, declared...14.0

Companies reaching this through an API (50)

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

Australian Digital Health Agency Avaya B3 (Brasil Bolsa Balcão) Corbado Emory University Factiva Factset FOLIO Georgia Institute of Technology Ghent University Hanyang University Harbin Institute of Technology Hokkaido University HubSpot Indian Institute of Science Bangalore Indian Institute of Technology Kharagpur Khalifa University Medrio Nagoya University Nanjing University National Center for Biotechnology Information (NCBI) National Cheng Kung University Optimizely OSF Otreeba Politecnico di Milano Public Sector pVerify Reactome Refinitiv Eikon Salesforce Shopify Sony SpruceID Stanford University STRING Telenor Sverige Terrain Discovery Environment API Texas A&M University Twilio U.S. Geological Survey UniProt University of Barcelona University of Lausanne University of Macau University of Twente University of Waikato University of Wisconsin-Madison Zaius École Normale Supérieure de Lyon

Score breakdown

Frequency
53.3
log-scaled weighted occurrences
Breadth
0.1
spread across providers
Quality lift
30.6
mean composite of providers using it
Cohesion
8.6
strength of nearest seed neighbor

Related tags

ROR 18 co-occurrences Registry 19 co-occurrences Course Catalog 13 co-occurrences Research Repository 18 co-occurrences DOI 12 co-occurrences University 22 co-occurrences Shibboleth 16 co-occurrences Scholarly 5 co-occurrences

Where this tag comes from

Api tag62
Provider tag5
Openapi tag20
Openapi op tag88

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Tools for tags

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  • 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.
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