Opendata Cat

Name: Opendata Cat
Author: xaviviro

by xaviviroversion 0.6.1i★ –iComputer or cloud

Registry nameio.github.xaviviro/opendata-cat

Install

Overview

Description from the maker (original English)

15 Catalan portals + radio archive: gov, INE/REE/CNMC, CORA, Catalònica, radioteca.cat.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiVery new↓ 58/wk · ★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Computer or cloud
Transport: stdio, Streamable HTTP
Category: Other

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on the maker’s server: what you ask it goes through their server.
The registry lists no key to fill in.

You need

Runs in the cloudNothing to install; it connects over the internet
npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

Open Settings → Connectors
Press Add custom connector
Paste the address below and press Add
If it asks you to sign in, sign in with the maker

https://opendata.cat/api/mcp

Or run it on your computer

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

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

Run this in your terminal

claude mcp add --transport http opendata-cat https://opendata.cat/api/mcp

Or run it on your computer

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

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "opendata-cat": {
      "url": "https://opendata.cat/api/mcp"
    }
  }
}

Or run it on your computer

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

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

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "opendata-cat": {
      "type": "http",
      "url": "https://opendata.cat/api/mcp"
    }
  }
}

Or run it on your computer

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

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

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

ChatGPT connects only to servers on the internet:

Open ChatGPT on the web → Settings → Connectors (Apps)
Press Create or Add (some plans need Developer mode under Advanced first)
Paste the address below, give it a name and save
If it asks you to sign in, sign in with the maker

https://opendata.cat/api/mcp

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

We have not read this server’s tool list yet; we check endpoints in rotation.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 8, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account xaviviro, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
… Not checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
… Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
… Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint

Compared with others in Otheri

More stars than 0% of the other 18490 servers in this category
Published to the registry more recently than 17% of the other 18490 servers in this category
Basic checks equal to or better than 100% of the other 18490 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Opendata Cat safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

Either way works: install it on your computer or connect to the cloud version.

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.6.1) reached the registry 3 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, Talexio MCP by usefulapi

Alternatives

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README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

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](https://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

Portal	Datasets	API
Generalitat de Catalunya	1.059	Socrata (SoQL)
Consorci AOC	~887	CKAN datastore
Ajuntament de Barcelona	555	CKAN datastore
Idescat	138	Idescat API
Ajuntament de Reus	119	CKAN datastore
Diputacio de Barcelona	90	REST + JSON:API (CIDO)
Ajuntament de Girona	53	CKAN datastore
FGC (Ferrocarrils)	50	Opendatasoft + GTFS-RT
Renfe Rodalies	6	CKAN + GTFS-RT JSON

Fonts estatals amb focus Catalunya

Font	Datasets	Que aporta
INE	6	Poblacio, IPC, EPA (atur/ocupacio), turisme, PIB, habitatge — auto-filtrat a Catalunya
Red Electrica (REE)	4	Generacio electrica (mix energetic), demanda, balanc, preus PVPC temps real
SEPE	2	Atur registrat i contractes per municipis catalans
CNMC / Ministeri	1	Preus 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):

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

Claude Code (CLI)

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

VS Code / Cursor

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

"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](https://opendata.cat/mcp).

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

https://opendata.cat/api/mcp

Tools disponibles

Tool	Descripcio
`search_datasets`	Cerca datasets per text lliure al cataleg de +3.073 datasets
`get_dataset_info`	Retorna metadades completes: camps, tipus, llicencia, endpoint
`list_dataset_fields`	Llista els camps d'un dataset amb nom, tipus i descripcio
`query_dataset`	Consulta dades reals directament al portal origen
`list_portals`	Llista els 15 portals disponibles amb estadistiques
`list_categories`	Llista categories i temes disponibles amb comptadors
`related_datasets`	Retorna datasets relacionats d'altres portals
`search_radioteca`	Cerca 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.

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.

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:// /SKILL.md, via resources/list + resources/read) i com a prompts-pont invocables com a slash-command (/mcp__opendata_cat__skill_ ).

Skill	Per a què
`consulta-dades-obertes`	Orientació general: navegar els 15 portals, consultar directe vs cercar, paginació, cites
`contractacio-publica`	Investigar contractació pública: creuar PSCP, registres municipals i adjudicacions, sumar imports
`radar-municipal`	Retrat complet d'un municipi creuant portals (pressupost, deute, contractes, població)
`patrimoni-i-hemeroteca`	Recerca 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

Usuari → LLM → MCP opendata.cat → API opendata.cat (cataleg)

→ Portal origen (dades reals)

L'MCP consulta l'API d'opendata.cat per descobrir datasets rellevants
Quan l'usuari vol dades concretes, l'MCP fa la consulta directament al portal origen
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:

Endpoint	Descripcio
`GET /api/all-datasets.php`	Llistat 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.php`	Categories i portals amb comptadors
`POST /api/mcp`	Servidor MCP (Streamable HTTP)

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

v0.6.0 (2026-07-15)

Noves skills servides com a resources MCP (skill:// /SKILL.md) + prompts-pont (skill_ )
4 skills d'investigació: consulta-dades-obertes, contractacio-publica, radar-municipal, patrimoni-i-hemeroteca
Empaquetades a skills/ i sincronitzades amb l'endpoint HTTP opendata.cat/api/mcp

v0.5.0 (2026-06-06)

Nou tool search_radioteca: cerca a radioteca.cat (~485K documents de radio catalana — 8 emissores)
Filtres publisher, year, type (Episode/Program/Person)
Tots els hits inclouen URL absoluta a radioteca.cat per trayabilitat
Proxy server-side a opendata.cat — la clau de Typesense no s'exposa al paquet npm

v0.3.1 (2026-04-17)

Handler CNMC preus carburants al paquet npm (abans nomes funcionava via HTTP)
Filtre per municipi i provincia: filters: {"municipi": "Sabadell"}
Per defecte retorna tota Catalunya (~1.500 gasolineres)
Nova og:image amb 13 portals i fonts estatals

v0.3.0 (2026-04-16)

5 noves fonts estatals espanyoles amb focus Catalunya: INE, REE, SEPE, CNMC
Handler INE: estadistica oficial (poblacio, IPC, EPA, turisme, PIB, habitatge) auto-filtrat a Catalunya
Handler REE: generacio electrica, demanda, balanc, preus PVPC en temps real
Handler CNMC: preus carburants amb filtres per CCAA/provincia/municipi via API REST
Crawler incremental: flag --portal per carregar fonts noves sense re-escanejar tot
13 portals, 2.857 datasets

v0.2.0 (2026-04-15)

Nou portal Renfe (Rodalies de Catalunya) — 6 datasets (estacions, viatgers, GTFS-RT temps real)
Handler GTFS-RT JSON amb filtre automatic a rutes Rodalies Barcelona (R1-R16, RT, RG, RL)
Instruccions reescrites en angles per millorar comprensio dels LLMs
Llistats de portals, keywords i categories a les instruccions
Tool descriptions i prompts traduits a angles
Nou prompt trens_rodalies_temps_real

v0.1.2 (2026-04-14)

Instructions integrades: l'LLM rep datasets destacats i pot fer query directe sense cercar
Fix Idescat: ara retorna l'indicador especific en lloc de 6 aleatoris
9 datasets municipals A

Only the beginning is shown; read the rest in the repo

Opendata Cat

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Or run it on your computer

Or run it on your computer

Or run it on your computer

Or run it on your computer

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

Talexio MCP by usefulapi

README from the maker

Opendata.cat MCP Server

Portals disponibles

Portals catalans

Fonts estatals amb focus Catalunya

Installacio rapida

Claude Desktop

Claude Code (CLI)

VS Code / Cursor

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

Tools disponibles

search_datasets

query_dataset

Skills

Exemples d'us

Com funciona

API REST

Sobre opendata.cat

Changelog

v0.6.0 (2026-07-15)

v0.5.0 (2026-06-06)

v0.3.1 (2026-04-17)

v0.3.0 (2026-04-16)

v0.2.0 (2026-04-15)

v0.1.2 (2026-04-14)