niche · -0.1 capabilitymarket resourceindustrydomain

Directory

Score 20.0 / 100 25 providers +54 via APIs 61 APIs Search apis.io →
Business capabilities this tag reaches
Cybersecurity Management 3 Human Capital Management 1 Health Information Management 1

Providers using this tag (25)

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

Developing 7 Usable, with meaningful gaps to close
Skills DirectoryAgent SkillsAI AgentsClaude7 APIs50.5MCPBundlesCompanyManagedCloudPlatformsTools1 API50.2Finn-tannlegeDentalHealthcareNorway1 API40.6List BulbCompanyArtificial IntelligenceSoftware-as-a-Service2 APIs39.3Rett fra BondenLocal FoodAgricultureFoodMarketplace2 APIs52.6legal.ge Public APIsLegalLawLegal Services1 API40.6EpicDirectoriesCompanyDataCatalog1 API39.5
Thin 5 Limited public surface area
Cisco Directory ConnectorActive DirectoryEnterpriseIdentity and Access Management1 API38.7PulseMCPMCPAI AgentsAgentic Engineering1 API35.8Google Admin SDKAdministrationDevicesEnterprise1 API30.4CiraApps LtdCompanySyncMobile1 API30.3KlarifyCompanyHealthcareMental HealthArtificial Intelligence26.4
Emerging 6 Early or largely undocumented
API StackAPI DesignAPI DirectoryAPI GatewaysAPI Management1 API12.6Startup BufferProduct DiscoveryStartupsListings12.2KOA LabsAgentsMCPA2AAgent Discovery2 APIs26.1SerchenCloud ServicesSoftware-as-a-ServiceSoftware Marketplace24.4CareLuLuCompanyChildcareDaycarePreschool12.9Startup RankingRankingsStartupsAnalytics12.2
Minimal 7 Almost no public developer surface
EventupCompanyEventVenuesMarketplace5.7CurlieCategorizationDMOZEditorial4.4MoonFruitCompanyMarketing AgenciesDigital Marketing4.2API Evangelist NetworkIndexNetworks0.2SulekhaCompanyMarketplaceClassifiedsLocal Services9.8PartingCompanyFuneral ServicesDeath CareCremation7.5ArgentmillCompanyFinanceInvestment2.2

APIs with this tag (61)

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 4 Complete, well-documented, and agent-ready
Microsoft Entra ID (formerly Azure AD) Directory APIDirectory roles and objects81.8SCVD General Store Directory APIThe Directory API from SCVD General Store — 1 operation(s) for directory.72.2SendPulse Directory APIdirectory entity68.4Tenable Directory APIRepresents an Active directory67.6
Strong 11 Solid coverage with minor gaps
Certifyos Directory APIAPIs for directory operations65.8Syllable Directory APIOperations related to directory65.1CM.com Directory APIThe Directory API from CM.com — 1 operation(s) for directory.64.1LDAP Protocol InterfaceLightweight Directory Access Protocol interface for querying and modifying Active Directory.61.8People APIRead and manage the authenticated user contacts and profiles, and search the directory.60.4Shodan Directory APIBrowse and search saved Shodan queries.56.7CONNSKILL Directory APIThe Directory API from CONNSKILL — 4 operation(s) for directory.56.6C1 Directory APIThe Directory API from C1 — 2 operation(s) for directory.55.7Cadasto DIRECTORY APIManagement of the [directory](https://specifications.openehr.org/releases/RM/latest/ehr.html#_directory) [F...55.5Blubrry Podcast Network APIThe Blubrry Podcast Network API provides access to user subscriptions with show management, episode metadat...54.5ConductorOne Directory APIThe Directory API from ConductorOne — 2 operation(s) for directory.54.3
Developing 13 Usable, with meaningful gaps to close
EHRbase DIRECTORY APIThe DIRECTORY API from EHRbase — 2 operation(s) for directory.51.1Eligible Payers APIThe Payers API exposes the directory of insurance payers supported by Eligible, including payer identifiers...50.3Agent Exchange Directory APIThe directory API from Agent Exchange — 2 operation(s) for directory.49.6vitagroup DIRECTORY APIThe DIRECTORY API from vitagroup — 2 operation(s) for directory.49.5Gojiberry AI Directory APIThe Directory API from Gojiberry AI — 6 operation(s) for directory.48.7Relativity Directory APIThe Directory API from Relativity — 2 operation(s) for directory.46.5CAP / Stanford Profiles APIAPI over the Community Academic Profiles directory (18,000+ faculty, students, postdocs and staff). The int...44.8Skyfire Directory APIThe Directory API from Skyfire — 5 operation(s) for directory.44.1Roadsync Directory APIThe directory API from Roadsync — 1 operation(s) for directory.41.7legal.ge Public APIs Directory APILook up services, practice areas and verified specialists on legal.ge.40.6KU Leuven Curriculum Information (Curriculuminformatie) APIICTS Data Services index of academic curriculum and CV records — discipline codes, research topics and the ...39.5KU Leuven Organizational Chart (Organigram) APIICTS Data Services REST API exposing public organizational-structure information matching the institutional...39.5KU Leuven Person Information APIICTS Data Services REST API exposing public personnel / who-is-who person information. An expanded intranet...39.5
Thin 23 Limited public surface area
Politecnico di Torino Directory APIPeople, department and teaching lookup behind the polito.it site search.37.9Direct Hire Directory APIThe Directory API from Direct Hire — 1 operation(s) for directory.37.4FedNow Participant List APIService Management API returning the current list of FedNow Service participants so an institution can conf...36.6Kno2 Directory APIValidate Direct addresses and list document types.36.2Konsentus Open Trust PlatformEnd-to-end platform used by central banks and market operators to build, manage, and maintain national or r...35.7Directory of Healthcare Services (Service Search) APISearch for NHS healthcare services across England including GPs, dentists, opticians, hospitals, pharmacies...35.5Spine Directory Service - FHIR APIQuery the Spine Directory Service (SDS) to look up endpoint information, organisation codes, and service me...35.5BambooHR Directory APIEmployee directory35.3BambooHR REST APIRESTful HTTPS API for accessing and manipulating employee data, directories, time-off, reports, and other B...35.3UK Open Banking Directory APITechnical API describing the Open Banking Directory, including participant registration, Software Statement...34.1Quietforge x402 Service Index APIA searchable, health-probed index of live x402 pay-per-call endpoints re-crawled from the Coinbase CDP and ...33.8AlayaCare Directory APIThe Directory API from AlayaCare — 1 operation(s) for directory.33.7PHAIDRA directory API (University of Vienna)Requests related to users, user groups and organisation structure33.4Princeton OIT API GatewayPrinceton's Office of Information Technology enterprise API gateway, running WSO2 API Manager. Fronts insti...32.9DartAPIDartmouth's institutional API platform, serving resource APIs such as People (directory identity) and Nextg...31.9Penn Clubs APIJSON API behind Penn Clubs, the student-organization directory that Penn's Office of Student Affairs adopte...31.0Healthcare Identifiers (HI) ServiceThe national Healthcare Identifiers Service, providing unique identifiers for individuals (IHI), healthcare...30.8Reown Cloud Explorer APIREST API to retrieve listings of WalletGuide-approved wallets, dApps, hybrid entries, and chains, plus logo...30.8Nuxeo Directory APIDirectory Operations30.4Matrix Directory APIThe Directory API from Matrix — 1 operation(s) for directory.30.1SpaceAPI Directory APISpaceAPI directory listing operations30.1openEHR DIRECTORY APIManagement of the [directory](https://specifications.openehr.org/releases/RM/latest/ehr.html#_directory) [F...28.1allagents Directory APIRead the book — search, browse by page, browse by specialty, read one card.27.8
Emerging 8 Early or largely undocumented
BotMarket REST APIAnonymous JSON read surface for the BotMarket directory at https://botmarket.bot/v1 — documented in llms.tx...26.1Glean People APILook up people in the enterprise knowledge graph including profile, expertise, org chart relationships, and...23.0Let's Encrypt Directory APIDiscovery document listing ACME resources22.7Casdoor LDAP ServerCasdoor provides an LDAP server interface so that legacy applications and infrastructure components requiri...22.5Intermedia Address Book APIThe Intermedia Address Book API aggregates user contacts from multiple sources into a unified directory acc...13.1Subsplash People APIPeople Sync surface for unifying member and contact records across systems, plus Single Sign-On (SSO) user ...13.1Applied Epic Contacts APICentralize contact data for clients, prospects, carriers, and vendors, with filtering by classification, em...11.9BIA Tribal Leaders DirectoryA searchable directory published by the Bureau of Indian Affairs of elected leaders and contact information...11.0
Minimal 2 Almost no public developer surface
OpenLDAP Directory ServiceLDAP v3 protocol interface provided by the slapd directory server for reading, writing, and managing hierar...6.6Aserto Directory APIThe directory API from Aserto — 14 operation(s) for directory.0.0

Companies reaching this through an API (54)

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

Agent Exchange AlayaCare allagents Applied Systems Aserto Australian Digital Health Agency BambooHR Blubrry API Bureau of Indian Affairs C1 Cadasto Casdoor CM.com ConductorOne CONNSKILL Dartmouth College Direct Hire EHRbase Eligible FedNow Service Glean Gojiberry AI Google Workspace Intermedia Kno2 Konsentus KU Leuven Let's Encrypt Matrix Microsoft Active Directory Microsoft Entra ID (formerly Azure AD) NHS Digital Nuxeo openEHR OpenLDAP Politecnico di Torino Princeton University Quietforge Studio Relativity Reown Roadsync SCVD General Store SendPulse Shodan Skyfire SpaceAPI Stanford University Subsplash Syllable Tenable
Show all 54 companies ↓
UK Open Banking University of Pennsylvania University of Vienna vitagroup

Score breakdown

Frequency
56.7
log-scaled weighted occurrences
Breadth
0.6
spread across providers
Quality lift
25.6
mean composite of providers using it
Cohesion
3.7
strength of nearest seed neighbor

Related tags

People 7 co-occurrences Course Catalog 6 co-occurrences Courses 5 co-occurrences Shibboleth 7 co-occurrences Identity Federation 9 co-occurrences Interoperability 7 co-occurrences x402 5 co-occurrences

Where this tag comes from

Api tag61
Provider tag26
Openapi tag28
Openapi op tag110

Cohort brief

Auto-generated

The 23 providers in the APIs.io catalog tagged Directory, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers
23
of 25 in the catalog
Mean Kin Score
26.4
+4.2 vs catalog 22.2
Mean Agent Readiness
13.4
+1.4 vs catalog 12
Spread
4.2–52.6
median 26.4 · σ 15.7
How the 23 split by band
Exemplar 0Strong 0Developing 7Thin 5Emerging 6Minimal 5
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Access Clarity 36.3 23.9 +12.4 23
Contract Governance 9.3 6.5 +2.8 23
Developer Ergonomics 25.6 23.2 +2.4 23
Operational Transparency 14.4 13 +1.4 23
Discoverability 58.9 57.9 +1 23
Contract Quality 18.2 17.2 +1 23

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) 35% 13% +22
MCP server (first-party) 30% 12% +18
Agent Skills 0% 0% 0
OAuth scopes 0% 11% -11
Security 100% 98% +2
Arazzo workflows 0% 2% -2
Governance rules 22% 16% +6

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 Rett fra Bonden 52.6
  2. 2 Skills Directory 50.5
  3. 3 MCPBundles 50.2
  4. 4 Finn-tannlege 40.6
  5. 5 legal.ge Public APIs 40.6
  6. 6 EpicDirectories 39.5
  7. 7 List Bulb 39.3
  8. 8 Cisco Directory Connector 38.7
  9. 9 PulseMCP 35.8
  10. 10 Google Admin SDK 30.4
Top by Agent Readiness
  1. 1 Rett fra Bonden 43.9
  2. 2 MCPBundles 43.2
  3. 3 Finn-tannlege 35.1
  4. 4 legal.ge Public APIs 31.8
  5. 5 EpicDirectories 28.6
  6. 6 Skills Directory 28.4
  7. 7 List Bulb 25.4
  8. 8 Cisco Directory Connector 20.7
  9. 9 Google Admin SDK 17.2
  10. 10 PulseMCP 15
All 25 members of this roster resolve to a provider in the catalog; 23 carry a score (92%). The figures above describe the scored members only.
Coverage caveat. 20 of 23 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 24 October 2026, across 31984 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/directory"
All tags 
curl "https://apis.io/api/v1/tags?limit=25"
As a scored cohort 
curl "https://apis.io/api/v1/cohorts/tag/directory"
The distribution (Pro) 
curl "https://apis.io/api/v1/cohorts/tag/directory/stats" \
  -H "X-API-Key: $APIS_IO_KEY"

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