PoliticsStandardCC-BY-4.0

opendata.dk — municipal open data

Name: opendata.dk — municipal open data
License: CC-BY-4.0

opendata.dk is a shared portal for municipal open data from Danish municipalities and regions (50+ organisations, including Copenhagen, Aarhus, Esbjerg, Frederiksberg, Vejle). Covers traffic and mobility, environment and climate, health, the economy, demographics and urban planning. CKAN v3 API (same pattern as datavejviser-ckan and dataportal-se), no auth. Licences vary per dataset (CC-BY-4.0, CC0, custom terms). Issue #1203.

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Data volume

Daily

Updates

MCP tools

Example response — /connectors/opendata-dk/search

{
  "datasets": [
    {
      "id": "5f3a9c2e-7b1d-4e8a-9c6f-2d4b8a1e3f70",
      "name": "parkeringszoner-aarhus",
      "title": "Parkeringszoner i Aarhus Kommune",
      "description": "Geografisk afgrænsning af betalingszoner for parkering.",
      "organization": "City of Aarhus",
      "license": "Creative Commons Attribution 4.0",
      "modified": "2026-04-12T08:31:55.120451",
      "created": "2021-09-01T10:02:11.004210",
      "tags": [
        "parkering",
        "trafik",
        "gis"
      ],
      "resources": [
        {
          "name": "Parkeringszoner GeoJSON",
          "format": "GeoJSON",
          "url": "https://portal.opendata.dk/dataset/x/resource/y/download/zoner.geojson"
        }
      ]
    }
  ],
  "count": 1,
  "rows": 20,
  "start": 0
}

MCP integration

Available MCP tools

opendata_dk.dataset

opendata_dk.municipalities

opendata_dk.search

Configuration for Claude Desktop / Cursor

{
  "mcpServers": {
    "opendata-dk": {
      "url": "https://data.ketl.no/mcp/opendata-dk",
      "headers": {
        "Authorization": "Bearer $KETL_API_KEY"
      }
    }
  }
}

API endpoints

GET

/search

Søk kommunale datasett (q + municipality-filter)

q optional: Fritekst-søk (maks 200 tegn); utelatt → alle datasett q=parkering
municipality optional: CKAN organization-slug for kommune/region municipality=city-of-aarhus
rows optional: Antall treff (1–100) rows=20
start optional: Paginering-offset (0–10000) start=0

Show curl example

# GET https://data.ketl.no/api/connectors/opendata-dk/search
curl \
  -H "Accept: application/json" \
  "https://data.ketl.no/api/connectors/opendata-dk/search"

Authenticated call — add one of these headers: x-api-key: ketl_… · Authorization: Bearer … — See the full reference in the documentation.

GET

/dataset/{id}

Full metadata for datasett

Show curl example

# GET https://data.ketl.no/api/connectors/opendata-dk/dataset/{id}
curl \
  -H "Accept: application/json" \
  "https://data.ketl.no/api/connectors/opendata-dk/dataset/{id}"

Authenticated call — add one of these headers: x-api-key: ketl_… · Authorization: Bearer … — See the full reference in the documentation.

GET

/municipalities

List deltakende kommuner

Show curl example

# GET https://data.ketl.no/api/connectors/opendata-dk/municipalities
curl \
  -H "Accept: application/json" \
  "https://data.ketl.no/api/connectors/opendata-dk/municipalities"

Authenticated call — add one of these headers: x-api-key: ketl_… · Authorization: Bearer … — See the full reference in the documentation.

Access and pricing

opendata.dk — municipal open data is openly available — create an account to get started.

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