1001 Smart Cities
🇪🇸 Madrid

Madrid Open Data Portal

🤖 AI-generated summary · ◆ 9 sourced claims · 🔎 Last verified

This overview was generated with AI from the public sources listed below and checked against them before publication. It has not had a complete human fact-check — treat it as a starting point and follow the sources.

9 sourced claims on this page, none individually verified yet — turn on “Sources in the text” to see each one.

How this atlas is made · What “last verified” means · What “source-checked” means · The full record behind this page

It opened in March 2014 with 74 datasets and now holds roughly 670, with over 10,500 downloadable files and real-time traffic and air-quality feeds. A February 2026 redesign moved it onto CKAN.

Outcome🔄 Ongoing
Evidence🏛️ Officialgrades the sourcing — this entry states no impact figure
what does this mean?The strongest source is the operator's or the city's own reporting — an official report, dataset or press release. It grades who did the looking — not how well the project went. All four grades →
Run byAyuntamiento de Madrid
Scale🏙️ City-wide

Part of 1001 Smart Cities — 1,216 documented projects · 🏙️ 7 more in Madrid · 📊 Open data guide · 📡 Data & IoT projects

The City of Madrid launched its open-data portal, datos.madrid.es, in March 2014 with 74 datasets. It has since grown to roughly 670 datasets and over 10,500 downloadable files, including real-time feeds such as traffic and air quality, published for free reuse under the city's open-data terms. A February 2026 redesign rebuilt it on the open-source CKAN platform with API access.

Live 📅 since 2014

🎓 Lesson

One portal is not one licence: by October 2026, 643 of the catalogue's 674 datasets carried CC BY 4.0, while the city's own companies — the EMT bus operator, Madrid Destino and the public libraries — kept their own reuse conditions, so the live bus feed comes under the EMT's terms rather than the licence that covers the traffic counts. And the 2026 rebuild answered regulation as much as users: the city lists the new CKAN portal among its responses to the EU's high-value-datasets rules, which require open licences, APIs and bulk download.

📡 Data & IoTOpen dataDigital government

Sources

↗ datos.gob.es (national government) — Madrid opens its open-data portalNational open-data portal's news item on the presentation of Madrid's portal on Wednesday 12 March 2014: more than 74 datasets, data free, open and without licence restrictions, including air quality and real-time traffic.
↗ esmartcity — Madrid launches its new Open Data Portal (Feb 2026)Published 17 February 2026Reports the relaunch of the renovated portal: grown from 74 datasets at its 2014 launch to 673 datasets and more than 10,500 downloadable files; built on the open-source CKAN technology with an API.
↗ datos.madrid.es — Open Data FAQ / conditions of useOperator FAQ: data can be consulted, downloaded and used without registering; each dataset offered in several formats (CSV, XLS, PDF…), always including formats usable with free software.
↗ datos.madrid.es — Condiciones de uso (reuse terms)Reuse terms: commercial and non-commercial reuse allowed; lists CC BY 4.0 and the city's general conditions, plus separate conditions for the public libraries' catalogue, the EMT bus company and Madrid Destino.
↗ datos.madrid.es — Normativa (regulation behind the portal)Regulation page: cites EU Directive 2019/1024 and Implementing Regulation 2023/138 on high-value datasets (open licences, APIs, bulk and real-time download within 16 months of 9 June 2024), lists the city's five actions including a new CKAN portal, and the Madrid Transparency Ordinance allowing reuse without prior permission and free of charge.
Show 3 more sourcesShow fewer
↗ datos.madrid.es — catalogue API: datasets by licenceLive catalogue query (CKAN): 674 datasets — 643 under CC BY 4.0, 19 under the EMT's conditions, 8 under Madrid Destino's, 3 under the public libraries', 1 under the city web portal's legal notice.
↗ datos.madrid.es — Tráfico. Datos del tráfico en tiempo real (dataset)Real-time traffic dataset, refreshed about every 5 minutes; metadata show it created on 12 March 2014 and licensed CC BY 4.0.
↗ datos.madrid.es — EMT. Tiempo real para autobuses de EMT (dataset)Real-time bus dataset of the municipal bus company EMT, published under the EMT's own general conditions and data-use agreement rather than CC BY 4.0.
Show your work What this page rests on and what it can’t tell you · all 9 claims with their sources · the forensic record

Evidence file · public beta 9 addressable claims, 8 source dossiers, one permanent baseline. The file is unreviewed — an AI-assisted structural migration, not a human or expert endorsement. Every revision keeps a permanent copy under revision history.

Inspect the claims, one by one — verbatim text, sources and caveats for all 9

The text below is copied verbatim from the published record. Each claim names the source dossiers that carry it; caveats stay attached to the claim they qualify.

Claim 1 clm-85a007455ad984e7 quantitative
The City of Madrid launched its open-data portal, datos.madrid.es, in March 2014 with 74 datasets.
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
datos.gob.es reports the portal's presentation on 12 March 2014 with more than 74 datasets; esmartcity gives 74 datasets at the 2014 launch.
Caveat
The national portal's wording is 'more than 74'.

Sources carrying this claim

  1. datos.gob.es (national government) — Madrid opens its open-data portal
  2. esmartcity — Madrid launches its new Open Data Portal (Feb 2026)
Claim 2 clm-bbde525c06cdcfb2 quantitative
It has since grown to roughly 670 datasets and over 10,500 downloadable files
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
esmartcity reports 673 datasets and more than 10,500 downloadable files at the February 2026 relaunch; the live catalogue counted 674 datasets in October 2026.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. esmartcity — Madrid launches its new Open Data Portal (Feb 2026)
  2. datos.madrid.es — catalogue API: datasets by licence
Claim 3 clm-cb42a5c69a1c8205 descriptive
including real-time feeds such as traffic and air quality
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
The 2014 launch item lists air quality and real-time traffic; the traffic dataset is refreshed about every five minutes today.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. datos.gob.es (national government) — Madrid opens its open-data portal
  2. datos.madrid.es — Tráfico. Datos del tráfico en tiempo real (dataset)
Claim 4 clm-671220be7a035b80 descriptive
published for free reuse under the city's open-data terms
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
The reuse terms allow commercial and non-commercial reuse; the FAQ says data can be used without registering; the Transparency Ordinance allows reuse without prior permission and free of charge.
Caveat
Most datasets carry CC BY 4.0, but municipal companies apply their own conditions (see the lesson).

Sources carrying this claim

  1. datos.madrid.es — Condiciones de uso (reuse terms)
  2. datos.madrid.es — Open Data FAQ / conditions of use
  3. datos.madrid.es — Normativa (regulation behind the portal)
Claim 5 clm-af76a893988e3497 quantitative
A February 2026 redesign rebuilt it on the open-source CKAN platform with API access.
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
esmartcity reports the renewed portal launched in February 2026 on open-source CKAN with an API; the city lists a new CKAN portal among its actions.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. esmartcity — Madrid launches its new Open Data Portal (Feb 2026)
  2. datos.madrid.es — Normativa (regulation behind the portal)
Claim 6 clm-187034259ae2dac8 quantitative
by October 2026, 643 of the catalogue's 674 datasets carried CC BY 4.0
Published field
lesson · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
The live catalogue query on 11 October 2026 returned 674 datasets, 643 of them licensed CC BY 4.0.
Caveat
A live count; it changes as datasets are added.

Sources carrying this claim

  1. datos.madrid.es — catalogue API: datasets by licence
Claim 7 clm-be1cbf4aac603900 descriptive
the city's own companies — the EMT bus operator, Madrid Destino and the public libraries — kept their own reuse conditions
Published field
lesson · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
The reuse-terms page lists separate conditions for the EMT, Madrid Destino and the public libraries' catalogue; the catalogue query shows 19, 8 and 3 datasets under them.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. datos.madrid.es — Condiciones de uso (reuse terms)
  2. datos.madrid.es — catalogue API: datasets by licence
Claim 8 clm-f7d434c8f1bb4e4d descriptive
the live bus feed comes under the EMT's terms rather than the licence that covers the traffic counts
Published field
lesson · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
The EMT real-time bus dataset is published under the EMT's general conditions and data-use agreement; the real-time traffic dataset under CC BY 4.0.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. datos.madrid.es — EMT. Tiempo real para autobuses de EMT (dataset)
  2. datos.madrid.es — Tráfico. Datos del tráfico en tiempo real (dataset)
Claim 9 clm-60845032daad3fae descriptive
the city lists the new CKAN portal among its responses to the EU's high-value-datasets rules, which require open licences, APIs and bulk download
Published field
lesson · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
The regulation page says high-value datasets must be available within 16 months of 9 June 2024 with non-restrictive open licences, APIs, machine-readable formats and bulk and real-time download, and lists a new CKAN portal among the city's five actions.
Caveat
The page does not say the regulation was the only reason for the rebuild; 'as much as users' is our reading, since the city also cites user surveys.

Sources carrying this claim

  1. datos.madrid.es — Normativa (regulation behind the portal)
Forensic record — source dossiers, gaps, hashes and the exact revision this page renders

This layer records what is known about each source, what is still missing, and the exact snapshot this page is rendering. A missing date, archive or hash stays visible as missing.

unreviewed Revision 2026-10-11-baseline effective 2026-10-11 · created 2026-10-11

Awaiting operator and domain-expert review; publication of this revision implies neither.

sha256:81ce8a1f315ab4af2e824623a67ef8c639f377582fbe62cc0eb9be4405403378
Revision history → Permanent version link → Machine-readable record → Evidence Constitution →
9
of 9 claims mapped
8
source dossiers
1
publication dates recorded
0
archives linked
0
exact locators
0
content captures hashed

Governance facts carried by the record

Operator
Ayuntamiento de Madrid
Actor types
city-government
Funding model
public
Funding description
Not recorded
Cost
Not recorded
Ownership
Not recorded
Decision rights
Not recorded
Exit conditions
Not recorded

8 source dossiers

datos.gob.es (national government) — Madrid opens its open-data portal datos.gob.es · 2 linked claims

Open original source ↗

Stable source ID
src-22c4a6f7a804b2c3
Publisher
Name not classified · datos.gob.es
Type / language
web-page · language not classified
Published
Not recorded
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-10-11
Dossier created
2026-10-11
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

National open-data portal's news item on the presentation of Madrid's portal on Wednesday 12 March 2014: more than 74 datasets, data free, open and without licence restrictions, including air quality and real-time traffic.

Descriptive only — not page/paragraph exact
Claims linked
esmartcity — Madrid launches its new Open Data Portal (Feb 2026) esmartcity.es · 3 linked claims

Open original source ↗

Stable source ID
src-6ebf8575934945fc
Publisher
Name not classified · esmartcity.es
Type / language
web-page · language not classified
Published
2026-02-17
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-10-11
Dossier created
2026-10-11
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Reports the relaunch of the renovated portal: grown from 74 datasets at its 2014 launch to 673 datasets and more than 10,500 downloadable files; built on the open-source CKAN technology with an API.

Descriptive only — not page/paragraph exact
Claims linked
datos.madrid.es — Open Data FAQ / conditions of use datos.madrid.es · 1 linked claim

Open original source ↗

Stable source ID
src-f74d7297e9a94b65
Publisher
Name not classified · datos.madrid.es
Type / language
web-page · language not classified
Published
Not recorded
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-10-11
Dossier created
2026-10-11
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Operator FAQ: data can be consulted, downloaded and used without registering; each dataset offered in several formats (CSV, XLS, PDF…), always including formats usable with free software.

Descriptive only — not page/paragraph exact
Claims linked
datos.madrid.es — Condiciones de uso (reuse terms) datos.madrid.es · 2 linked claims

Open original source ↗

Stable source ID
src-ea57c563baad74e2
Publisher
Name not classified · datos.madrid.es
Type / language
web-page · language not classified
Published
Not recorded
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-10-11
Dossier created
2026-10-11
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Reuse terms: commercial and non-commercial reuse allowed; lists CC BY 4.0 and the city's general conditions, plus separate conditions for the public libraries' catalogue, the EMT bus company and Madrid Destino.

Descriptive only — not page/paragraph exact
Claims linked
datos.madrid.es — Normativa (regulation behind the portal) datos.madrid.es · 3 linked claims

Open original source ↗

Stable source ID
src-04106e73e83d2a5f
Publisher
Name not classified · datos.madrid.es
Type / language
web-page · language not classified
Published
Not recorded
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-10-11
Dossier created
2026-10-11
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Regulation page: cites EU Directive 2019/1024 and Implementing Regulation 2023/138 on high-value datasets (open licences, APIs, bulk and real-time download within 16 months of 9 June 2024), lists the city's five actions including a new CKAN portal, and the Madrid Transparency Ordinance allowing reuse without prior permission and free of charge.

Descriptive only — not page/paragraph exact
Claims linked
datos.madrid.es — catalogue API: datasets by licence datos.madrid.es · 3 linked claims

Open original source ↗

Stable source ID
src-b7aa30d7e0e8ebee
Publisher
Name not classified · datos.madrid.es
Type / language
web-page · language not classified
Published
Not recorded
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-10-11
Dossier created
2026-10-11
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Live catalogue query (CKAN): 674 datasets — 643 under CC BY 4.0, 19 under the EMT's conditions, 8 under Madrid Destino's, 3 under the public libraries', 1 under the city web portal's legal notice.

Descriptive only — not page/paragraph exact
Claims linked
datos.madrid.es — Tráfico. Datos del tráfico en tiempo real (dataset) datos.madrid.es · 2 linked claims

Open original source ↗

Stable source ID
src-983ce33e5932990a
Publisher
Name not classified · datos.madrid.es
Type / language
web-page · language not classified
Published
Not recorded
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-10-11
Dossier created
2026-10-11
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Real-time traffic dataset, refreshed about every 5 minutes; metadata show it created on 12 March 2014 and licensed CC BY 4.0.

Descriptive only — not page/paragraph exact
Claims linked
datos.madrid.es — EMT. Tiempo real para autobuses de EMT (dataset) datos.madrid.es · 1 linked claim

Open original source ↗

Stable source ID
src-e28175d6c02fc89b
Publisher
Name not classified · datos.madrid.es
Type / language
web-page · language not classified
Published
Not recorded
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-10-11
Dossier created
2026-10-11
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Real-time bus dataset of the municipal bus company EMT, published under the EMT's own general conditions and data-use agreement rather than CC BY 4.0.

Descriptive only — not page/paragraph exact
Claims linked
Known limits of this file
  • Publisher names and source languages have not yet been classified; domains are recorded without guessing.
  • Existing source notes are descriptive locators, not page- or paragraph-exact citations.
  • A missing archive, publication date or content hash is shown as null rather than inferred.
  • The project-level evidence grade ranks the strongest source in the entry; it is not a truth score for every claim.

Continue exploring

Compare this project

🇪🇸 Open Data BCN · Barcelona Spain's early municipal open-data portals: Barcelona opened Open Data BCN in 2011, Madrid's datos.madrid.es in 2014. 🇫🇷 Paris Open Data Portal (Paris Data) · Paris Europe's municipal open-data wave: Paris opened its ODbL portal in 2011, Madrid published datos.madrid.es in 2014. 🇬🇧 London Datastore & Data for London Library · London London's Datastore (2010) predates Madrid's datos.madrid.es (2014); both are major municipal open-data catalogues with live feeds.

Explore the wider context

🗺️ Your City's Problem Map Is Really a Map of Who Complains📖 Open data📖 Urban data platform (UDP)📖 Building performance standard (BPS)
📎 Cite this project

1001 Smart Cities (2026). “Madrid Open Data Portal” — Madrid, Spain. The Smart City Atlas. https://1001smartcities.org/projects/madrid-open-data/ (last verified 2026-10-11). Data: CC BY 4.0.

The underlying data is free to reuse with attribution — see the open data page.

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