DCAT
Providers using this tag (185)
Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.
Developing 2 Usable, with meaningful gaps to close
Emerging 141 Early or largely undocumented
Transport for NSW Open Data HubCalderdale Data WorksCalifornia Health and Human ServicesCalifornia Natural Resources AgencyCalifornia Open Datadata.overheid.nlDatenregister BerlinEssex Open DataNSW Government Open DataOpen Data Schleswig-Holsteinopen NRWopendata.swissUK Government Open DataYukon Open Datadata.gov.uk CKAN Publishing ServiceDonnees QuebecLondon DatastoreOpen Development CambodiaOpen Development MekongOpen Development MyanmarOpen Development VietnamQueensland Government DataAlbertaAmeriGEOSS Community PlatformAnalyze BostonAragón Open DataAvoindata.fiBarnet Open DataBC Data CatalogueBienvenido a OpenData UGRBODIK ODCSBritish Columbia (DataBC)Buenos Aires DataCity of Milan Open DataCity of San JoseCity of Toronto Open DataCKAN DemoDados abertos Distrito FederalDados Abertos POADados RSDATA GO JPData Mill North (Leeds)Data.gov Inventorydata.gov.au FederalDATA.GOV.HKdata.gov.iedata.gov.lvdata.sa.gov.au South Australiadata.zagreb.hr Official Open Data PortalDataVic Victoriadati.emilia-romagna.itdati.gov.itDatos abiertosDatos Abiertos ACUMARDatos Abiertos ARSATDatos Abiertos BogotaDatos Abiertos Salud ArgentinaDatos Agricultura ArgentinaDatos ArgentinaDatos Energia ArgentinaDatos Provincia de MisionesDatos Transporte ArgentinaDatos Turismo y Deportes Argentinadatos.gob.mx - Sitio oficial de datos abiertos del Gobierno de la Repúblicadatos.gub.uy - Catálogo de Datos Abiertosdatos.misiones.gov.arDOE NETL Energy Data ExchangeDonnees Ouvertes Montreale-Gov Data CatalogENERGYDATA.infoEUDAT B2FINDFortaleza Dados AbertosGifu Prefecture Open DataGouvernement ouvert Canada (FR)gov.ilGovData DeutschlandGovData GermanyGoverno Aberto do Estado de São PauloGreece National Data PortalHawaii Open Data PortalHumanitarian Data ExchangeIATI RegistryLeeds Data MillMadrid Region Open DataMedicaid Open DataMilwaukee Open DataMontpellier Open DataMontréal, QuébecNASA Open DataNHS Scotland Open DataNiagara Open DataNorthern Territory Open DataOfficial Ukrainian Government PortalOklahomaOntario Data CatalogueOpen Data Regione ToscanaOpen Data TrentinoOpen Government Canadaopendata.gov.jeOpenData.HRO - Portal für offene Data der Hansestadt RostockOpenDataNI (Northern Ireland)OPSI SloveniaPortal Datos Abiertos Ayuntamiento de MálagaPortal de Dados Abertos da Cidade de São PauloPortal de Dados Abertos – Prefeitura de Belo HorizontePortal de Dados Urbanos PPGAU UFF - Open data portal for Urban ResarchPortal de Datos Abiertos Republica DominicanaPortal oficial Ayuntamiento de Rivas VaciamadridPortale Dati aperti del Comune di MateraQueensland Geoscience DataRecife City Open DataSan Bernardino County ATC OpenDataSatu Data AcehSatu Data Bencana Indonesia (BNPB)Satu Data Kalimantan TimurSatu Data Semarang RegencySpatial Hub ScotlandTokyo Metropolitan Open DataTransparency Portal for the City of Karlsruhe, GermanyUS Small Business Administration Open DataVirginia Open DataWestern Australia Data CatalogueYokohama City Open DataMontenegro Open DataAcre Open DataBahia Blanca Open DataBahia Open DataEntre Rios Open DataEspirito Santo Open DataEthiopia Open DataLazio Open DataLeipzig Open DataLiguria Open DataMendoza Open DataMessina Open DataModena Open DataNaples Open DataPakistan Open DataPernambuco Open DataRondonia Open DataSanta Catarina Open Data
Minimal 42 Almost no public developer surface
Opolskie Open DataZurich Open DataLAMMA Toscana Open DataIreland Open Data CatalogueLecce Open DataMontenegro Open Data (data.gov.me)Neolaiacampus Open DataUmbria Region Open DataBoxxApps Open DataCali Open DataCompanies Registration Office Open DataConsip Open DataCork City Open DataGenoa Open DataIncheon Open DataIrish Agriculture Open DataIrish Housing Open DataKildare County Council Open DataKozadat Hungary Open DataLimerick Open Data CatalogueLisbon Open DataMaggioli Cloud Open DataMontevideo Open DataNBCO Open DataNCSE Open DataRimini Open DataRome Open DataSmartDublin Open DataSonora Open DataSouth Tyrol Civis Open DataSouth Tyrol Retecivica DataTeagasc Open DataTrento Open DataTurin Open DataTusla Child & Family Agency Open DataUruguay Open Data Cataloguedata.gov.hrdataset.gov.md (Portalul Datelor Deschise)University of Bologna Open DataUPM YODA Open Data Portaldata.gov.mkdata.gov.rs
APIs with this tag (11)
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 →
Developing 6 Usable, with meaningful gaps to close
HealthData.gov Catalog APIThe HealthData.gov Catalog API uses CKAN and provides machine-readable access to the HHS health data catalo...Politecnico di Milano Open DataThe university's own open data portal. It is not CKAN, Socrata or a data.json endpoint — all three 404 — bu...Bonneville Power Administration Data Search APIBPA's ArcGIS Hub site publishes a real OGC API Records catalog search over the agency's open geospatial dat...University of Southampton Open Data Service (Linked Data)Institution-built, institution-hosted linked open data covering the physical and organisational University:...Western Pennsylvania Regional Data Center (WPRDC) CKAN APIWPRDC is a regional open data portal led by the University Center for Social and Urban Research (UCSUR) at ...Open Spatial Data Portal (Esri ArcGIS Hub tenancy)TENANT RELATIONSHIP. An Esri ArcGIS Hub site publishing University of Melbourne campus GIS layers — buildin...
Thin 5 Limited public surface area
Department of State Open Data CatalogThe Department's Project Open Data catalog, served as a single machine-readable DCAT-US 3.0 document at htt...Sapienza Library System Open Data & Linked Data (dormant)Open-data and linked-data publishing project of the Sistema Bibliotecario Sapienza, on the institution's ow...NGED Connected Data DCAT CatalogueMachine-readable DCAT catalogue exports of the entire NGED Connected Data Portal, linked from the footer of...UniversiDATA DCAT Catalog APIDCAT catalogue endpoint of UniversiDATA, addressed per participating university by acronym. The UCM catalog...UNC GIS Open Data Hub (ArcGIS Hub DCAT-US)UNC-Chapel Hill's campus open-data site for geospatial and institutional datasets, published through ArcGIS...
Companies reaching this through an API (10)
These companies publish an API, specification or operation carrying “DCAT” 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.
Bonneville Power Administration
Complutense University of Madrid
Department of State
HHS (US Department of Health and Human Services)
National Grid Electricity Distribution
Sapienza University of Rome
University of Melbourne
University of North Carolina at Chapel Hill
University of Pittsburgh
University of Southampton
Score breakdown
Frequency
62.9
log-scaled weighted occurrences
Breadth
5.1
spread across providers
Quality lift
15.9
mean composite of providers using it
Cohesion
94.8
strength of nearest seed neighbor
Related tags
CKAN 183 co-occurrences
Action API 166 co-occurrences
Data Catalog 184 co-occurrences
Government Data 168 co-occurrences
JSON 178 co-occurrences
Catalog 188 co-occurrences
Open Data 195 co-occurrences
Open Data Portal 53 co-occurrences
Where this tag comes from
Provider tag185
Api tag11
Cohort brief
Auto-generatedThe 184 providers in the APIs.io catalog tagged DCAT, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.
Providers
184
all scored
Mean Kin Score
14.1
-9.8 vs catalog 23.9
Mean Agent Readiness
2.8
-9.2 vs catalog 12
Spread
5.3–46.5
median 15.7 · σ 4.7
How the 184 split by band
Exemplar 0Strong 0Developing 2Thin 0Emerging 141Minimal 41
Facet averages, against the whole catalog
| Facet | This cohort | Catalog | Difference | Scored |
|---|---|---|---|---|
| Discoverability | 65.9 | 61.2 | +4.7 | 184 |
| Operational Transparency | 14.4 | 14 | +0.4 | 184 |
| Access Clarity | 24.1 | 26.5 | -2.4 | 184 |
| Contract Governance | 0.4 | 6.4 | -6 | 184 |
| Developer Ergonomics | 10 | 23.4 | -13.4 | 184 |
| Contract Quality | 0.4 | 19.8 | -19.4 | 184 |
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
| Artifact | This cohort | Catalog | Difference |
|---|---|---|---|
| MCP server (any) | 0% | 10% | -10 |
| MCP server (first-party) | 0% | 13% | -13 |
| Agent Skills | 0% | 0% | 0 |
| OAuth scopes | 1% | 11% | -10 |
| Security | 99% | 97% | +2 |
| Arazzo workflows | 0% | 2% | -2 |
| Governance rules | 1% | 14% | -13 |
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 Bureau of Land Management 46.5
- 2 Politecnico di Milano 42.9
- 3 Transport for NSW Open Data Hub 17.8
- 4 Calderdale Data Works 17.3
- 5 California Health and Human Services 17.3
- 6 California Natural Resources Agency 17.3
- 7 California Open Data 17.3
- 8 data.overheid.nl 17.3
- 9 Datenregister Berlin 17.3
- 10 Essex Open Data 17.3
Top by Agent Readiness
- 1 Bureau of Land Management 42.7
- 2 Politecnico di Milano 26.7
- 3 Transport for NSW Open Data Hub 2.5
- 4 Calderdale Data Works 2.5
- 5 California Health and Human Services 2.5
- 6 California Natural Resources Agency 2.5
- 7 California Open Data 2.5
- 8 data.overheid.nl 2.5
- 9 Datenregister Berlin 2.5
- 10 Essex Open Data 2.5
All 185 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.