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Opendata Cat

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Connect LLMs with 2,500+ open data datasets from Catalonia (Socrata, CKAN, REST).

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to CursorAdd to VS Code
Manual Client & Custom JSON ConfigExpand JSON â–¾

Client Config & Setup

Choose your client or environment
Target File:~/Library/Application Support/Claude/claude_desktop_config.json
claude_desktop_config.json
{
  "mcpServers": {
    "opendata-cat": {
      "command": "npx",
      "args": [
        "-y",
        "opendata-cat"
      ]
    }
  }
}

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Install Directory Badge Claim listing Alternatives💻 More in Developer Tools

Documentation Overview

Opendata.cat MCP Server — Connecta el teu LLM amb les dades obertes de Catalunya

npm npm downloads github web license

Opendata.cat MCP Server

Servidor MCP (Model Context Protocol) que connecta els models de llenguatge (Claude, ChatGPT, Gemini...) amb les dades obertes publiques de Catalunya. Cerca datasets, explora metadades i consulta dades reals de 15 portals directament des del teu assistent d'IA.

Un projecte d'opendata.cat — associacio sense anim de lucre fundada el 2012 que promou la transparencia, la difusio i l'estandarditzacio de les dades obertes a Catalunya. Inspirat en el projecte datagouv-mcp del govern frances.

Portals disponibles

Portals catalans

PortalDatasetsAPI
Generalitat de Catalunya1.059Socrata (SoQL)
Consorci AOC~887CKAN datastore
Ajuntament de Barcelona555CKAN datastore
Idescat138Idescat API
Ajuntament de Reus119CKAN datastore
Diputacio de Barcelona90REST + JSON:API (CIDO)
Ajuntament de Girona53CKAN datastore
FGC (Ferrocarrils)50Opendatasoft + GTFS-RT
Renfe Rodalies6CKAN + GTFS-RT JSON

Fonts estatals amb focus Catalunya

FontDatasetsQue aporta
INE6Poblacio, IPC, EPA (atur/ocupacio), turisme, PIB, habitatge — auto-filtrat a Catalunya
Red Electrica (REE)4Generacio electrica (mix energetic), demanda, balanc, preus PVPC temps real
SEPE2Atur registrat i contractes per municipis catalans
CNMC / Ministeri1Preus carburants a ~1.500 gasolineres de Catalunya, filtrables per municipi

+3.073 datasets de 15 portals. La majoria queryables amb filtres, cerca i paginacio.

El cataleg s'actualitza automaticament cada setmana. Crawling incremental amb --portal per carregar fonts noves sense re-escanejar tot.

Tipus d'acces:

  • Socrata: consulta SoQL amb filtres i cerca (Generalitat)
  • CKAN: datastore_search amb filtres i cerca (Barcelona, AOC, Reus, Girona, Renfe)
  • Diba REST: API do.diba.cat amb paginacio i filtres (Diputacio BCN)
  • CIDO JSON:API: api.diba.cat per contractacions, normatives, subvencions (Diputacio BCN)
  • Opendatasoft: API records amb filtres i cerca (FGC)
  • GTFS-RT: posicions GPS, alertes i retards dels trens FGC i Renfe Rodalies en temps real
  • Idescat: indicadors estadistics amb series temporals
  • INE: estadistica oficial d'Espanya filtrada automaticament a Catalunya
  • REE: generacio electrica, demanda i preus de l'electricitat (PVPC) en temps real
  • CNMC: preus de carburants per estacio de servei, filtrables per CCAA/provincia/municipi
  • GIS: simplificacio automatica de geometries (centroide + bbox)
  • Dades municipals AOC: 9 datasets amb dades de +1.000 municipis, filtrables per NOM_ENS

Installacio rapida

Claude Desktop

Afegeix al fitxer de configuracio (~/Library/Application Support/Claude/claude_desktop_config.json a macOS o %APPDATA%\Claude\claude_desktop_config.json a Windows):

config.json
{
  "mcpServers": {
    "opendata-cat": {
      "command": "npx",
      "args": ["-y", "@opendata.cat/mcp-server"]
    }
  }
}

Claude Code (CLI)

Terminal
claude mcp add opendata-cat -- npx -y @opendata.cat/mcp-server

VS Code / Cursor

Afegeix al fitxer .vscode/mcp.json del teu projecte:

config.json
{
  "servers": {
    "opendata-cat": {
      "command": "npx",
      "args": ["-y", "@opendata.cat/mcp-server"]
    }
  }
}

Windsurf / Cline / JetBrains / Gemini CLI / Warp / ChatGPT / Copilot Studio

Consulta la guia completa amb instruccions per a 13 clients MCP a opendata.cat/mcp.

Tambe pots connectar directament via Streamable HTTP sense instal·lar res:

Code
https://opendata.cat/api/mcp

Tools disponibles

ToolDescripcio
search_datasetsCerca datasets per text lliure al cataleg de +3.073 datasets
get_dataset_infoRetorna metadades completes: camps, tipus, llicencia, endpoint
list_dataset_fieldsLlista els camps d'un dataset amb nom, tipus i descripcio
query_datasetConsulta dades reals directament al portal origen
list_portalsLlista els 15 portals disponibles amb estadistiques
list_categoriesLlista categories i temes disponibles amb comptadors
related_datasetsRetorna datasets relacionats d'altres portals
search_radiotecaCerca al cataleg de radioteca.cat (~485K episodis, programes i persones de Catalunya Radio, RAC1, Catalunya Musica, iCat, RTVE...). Sempre retorna URL absolut a radioteca.cat per trayabilitat

search_datasets

Cerca datasets per text lliure.

Code
query: "qualitat aire"
portal: "barcelona"        # opcional: generalitat, barcelona, diba, aoc, reus, girona, fgc, idescat, renfe, ine, ree, sepe, cnmc
category: "Medi Ambient"   # opcional
limit: 20                  # opcional (defecte: 20)

query_dataset

Executa una consulta directament contra el portal origen i retorna dades reals.

Code
dataset_id: "generalitat:gn9e-3qhr"
filters: {"estaci": "Sau"}   # opcional
search: "embassament"         # opcional
limit: 20                     # opcional (defecte: 20, max: 100)
offset: 0                     # opcional

Exemples de filtres per fonts estatals:

  • INE: auto-filtrat a Catalunya (poblacio, IPC, turisme...)
  • REE: ree:preus-electricitat — preus PVPC per hora
  • CNMC: filters: {"municipi": "Sabadell"} — gasolineres de Sabadell

Skills

A més de les tools i els prompts, el servidor publica skills: guies d'investigació (estil SKILL.md) que orienten l'LLM pas a pas en un domini concret — com triar el dataset, filtrar, paginar i citar bé. Es distribueixen dins el paquet (skills/) i es serveixen com a resources MCP (skill://<nom>/SKILL.md, via resources/list + resources/read) i com a prompts-pont invocables com a slash-command (/mcp__opendata_cat__skill_<nom>).

SkillPer a què
consulta-dades-obertesOrientació general: navegar els 15 portals, consultar directe vs cercar, paginació, cites
contractacio-publicaInvestigar contractació pública: creuar PSCP, registres municipals i adjudicacions, sumar imports
radar-municipalRetrat complet d'un municipi creuant portals (pressupost, deute, contractes, població)
patrimoni-i-hemerotecaRecerca a Catalònica (BNC) i radioteca.cat amb selecció de subportal i cites obligatòries

Les mateixes skills es serveixen també des de l'endpoint HTTP https://opendata.cat/api/mcp.

Exemples d'us

Un cop configurat, pots fer preguntes al teu LLM com:

  • "Quin es l'estat dels embassaments de Catalunya?"
  • "Hi ha algun tren de Rodalies o FGC amb retard ara mateix?"
  • "Quina es la poblacio de Catalunya segons l'INE?"
  • "Quin es el preu de la gasolina a Sabadell avui?"
  • "Quant costa l'electricitat ara? (PVPC)"
  • "Analitza la qualitat de l'aire a Terrassa"
  • "Quina es la taxa d'atur a Catalunya?"
  • "Quantes pernoctacions turistiques hi ha a Barcelona?"
  • "Compara Girona i Tarragona en dades obertes"
  • "Dona'm les ultimes dades de pressupostos de Reus"
  • "Quin es l'endeutament de Tiana?"

Com funciona

Code
Usuari → LLM → MCP opendata.cat → API opendata.cat (cataleg)
                                 → Portal origen (dades reals)
  1. L'MCP consulta l'API d'opendata.cat per descobrir datasets rellevants
  2. Quan l'usuari vol dades concretes, l'MCP fa la consulta directament al portal origen
  3. Les dades tornen a l'LLM, que les interpreta i presenta a l'usuari

No emmagatzema ni fa de proxy de dades. Cada consulta va directament a la font oficial.

API REST

A mes del servidor MCP, opendata.cat ofereix una API REST publica:

EndpointDescripcio
GET /api/all-datasets.phpLlistat complet amb paginacio, filtres i sort
GET /api/datasets.php?q=...Cerca datasets per text lliure
GET /api/dataset.php?id=...Detall complet d'un dataset
GET /api/categories.phpCategories i portals amb comptadors
POST /api/mcpServidor MCP (Streamable HTTP)

Documentacio interactiva (Swagger): opendata.cat/api/docs.html

Sobre opendata.cat

opendata.cat es una associacio catalana sense anim de lucre fundada el 2012 (registre 47468) dedicada a promoure la transparencia i l'acces a la informacio publica.

Changelog

Read the full README →View source on GitHub →

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Reviews

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Frequently Asked Questions about Opendata Cat

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "opendata-cat": { "command": "npx", "args": ["-y", "opendata-cat"] } }

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Technical Specs & Signals

Category💻Developer Tools
More technical detailsExpand â–¾
TransportSTDIO
RuntimeNode.js
Last updatedSep 7, 2026
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27Quality signal: Emerging · 27/100How this signal is calculated ▾
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Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership8/20
Documentation & tools11/30
Adoption & activity1/15
Community engagement0/10

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