Open Data Portal
Providers using this tag (53)
Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.
Emerging 53 Early or largely undocumented
Transport for NSW Open Data Hubopen NRWLondon DatastoreQueensland Government DataAlbertaAragón Open DataBienvenido a OpenData UGRBritish Columbia (DataBC)Buenos Aires DataCity of Milan Open DataCity of San JoseDados abertos Distrito FederalDados Abertos POADados RSdata.gov.iedata.zagreb.hr Official Open Data Portaldati.emilia-romagna.itDatos abiertosdatos.gob.mx - Sitio oficial de datos abiertos del Gobierno de la Repúblicadatos.gub.uy - Catálogo de Datos Abiertosdatos.misiones.gov.arFortaleza Dados Abertosgov.ilGoverno Aberto do Estado de São PauloGreece National Data PortalIATI RegistryLeeds Data MillMontréal, QuébecOfficial Ukrainian Government PortalOklahomaOpen Data Regione ToscanaOpen Data Trentinoopendata.gov.jeOpenData.HRO - Portal für offene Data der Hansestadt RostockPortal 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 oficial Ayuntamiento de Rivas VaciamadridPortale Dati aperti del Comune di MateraRecife City Open DataTransparency Portal for the City of Karlsruhe, GermanyAcre Open DataBahia Blanca Open DataBahia Open DataEthiopia Open DataLeipzig Open DataLiguria Open DataMendoza Open DataMessina Open DataModena Open DataNaples Open DataRondonia Open Data
APIs with this tag (0)
No API pages are linked for this tag yet. Search apis.io →
Score breakdown
Frequency
47.9
log-scaled weighted occurrences
Breadth
1.5
spread across providers
Quality lift
17.6
mean composite of providers using it
Cohesion
36.2
strength of nearest seed neighbor
Related tags
Action API 53 co-occurrences
Government Data 53 co-occurrences
DCAT 53 co-occurrences
CKAN 53 co-occurrences
Data Catalog 53 co-occurrences
JSON 53 co-occurrences
Catalog 53 co-occurrences
Italy 9 co-occurrences
Where this tag comes from
Provider tag53
Cohort brief
Auto-generatedThe 53 providers in the APIs.io catalog tagged Open Data Portal, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.
Providers
53
all scored
Mean Kin Score
15
-5.7 vs catalog 20.7
Mean Agent Readiness
2.5
-7.2 vs catalog 9.7
Spread
12–17.8
median 15.7 · σ 1.6
How the 53 split by band
Exemplar 0Strong 0Developing 0Thin 0Emerging 53Minimal 0
Facet averages, against the whole catalog
| Facet | This cohort | Catalog | Difference | Scored |
|---|---|---|---|---|
| Access Clarity | 28.9 | 22.3 | +6.6 | 53 |
| Discoverability | 66.6 | 60.4 | +6.2 | 53 |
| Operational Transparency | 16.7 | 11.3 | +5.4 | 53 |
| Contract Governance | 0 | 6.4 | -6.4 | 53 |
| Developer Ergonomics | 9.6 | 17.9 | -8.3 | 53 |
| Contract Quality | 0 | 17.5 | -17.5 | 53 |
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% | 16% | -16 |
| MCP server (first-party) | 0% | 7% | -7 |
| Agent Skills | 0% | 0% | 0 |
| OAuth scopes | 0% | 9% | -9 |
| Security | 100% | 88% | +12 |
| Arazzo workflows | 0% | 2% | -2 |
| Governance rules | 0% | 13% | -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 Transport for NSW Open Data Hub 17.8
- 2 open NRW 17.3
- 3 London Datastore 16.2
- 4 Queensland Government Data 16.2
- 5 Alberta 15.7
- 6 Aragón Open Data 15.7
- 7 Bienvenido a OpenData UGR 15.7
- 8 British Columbia (DataBC) 15.7
- 9 Buenos Aires Data 15.7
- 10 City of Milan Open Data 15.7
Top by Agent Readiness
- 1 Acre Open Data 2.5
- 2 Alberta 2.5
- 3 Aragón Open Data 2.5
- 4 Bahia Blanca Open Data 2.5
- 5 Bahia Open Data 2.5
- 6 Bienvenido a OpenData UGR 2.5
- 7 British Columbia (DataBC) 2.5
- 8 Buenos Aires Data 2.5
- 9 City of Milan Open Data 2.5
- 10 City of San Jose 2.5
All 53 members of this roster resolve to a scored provider in
the catalog.Generated from the catalog build of
25 August 2026, across 26891
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.
Call it yourself
curl for this page
This tag
curl "https://apis.io/api/v1/tags/open-data-portal"
All tags
curl "https://apis.io/api/v1/tags?limit=25"
As a scored cohort
curl "https://apis.io/api/v1/cohorts/tag/open-data-portal"
The distribution (Pro)
curl "https://apis.io/api/v1/cohorts/tag/open-data-portal/stats" \
-H "X-API-Key: $APIS_IO_KEY"Discovery needs no key. Ratings and market analysis are Pro.