EnvironmentStandardCC-BY-4.0

The Geological Survey of Norway (NGU)

Name: The Geological Survey of Norway (NGU)
License: CC-BY-4.0

Geological maps, groundwater data, radon maps, sediment maps and mineral resources. Important for the construction industry, planning authorities and mining.

—

Data volume

Quarterly

Updates

MCP tools

Example response — /geology

{
  "data": "..."
}

MCP integration

Available MCP tools

ngu.boreholes.list

ngu.config.status

ngu.rock_types.list

ngu.wells.list

Configuration for Claude Desktop / Cursor

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

Analysis apps that use this source

Ready-made tools built on The Geological Survey of Norway (NGU) data. Use them directly in the browser, or wire the same data into your own analysis via the API below.

Groundwater

Search NGU's NADAG database of groundwater wells — find wells per municipality with depth, capacity, water type and water quality.

Ground conditions

Geotechnical boreholes and groundwater wells from NGU's national database NADAG — address lookup via Nominatim shows registered ground investigations within a chosen radius. Relevant as a first step in site assessment and property due diligence.

API endpoints

GET

/geologyPlanned

Berggrunnskart

Show curl example

# GET https://data.ketl.no/api/connectors/ngu/geology
curl \
  -H "Accept: application/json" \
  "https://data.ketl.no/api/connectors/ngu/geology"

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

GET

/groundwater

Grunnvannsdata

municipality optional: Kommunenummer (4 siffer). Minst én av municipality/county/(lat&lon) municipality=0301
kommunenr optional: Alias for `municipality`. `municipality` vinner hvis begge er gitt. kommunenr=0301
county optional: Fylkesnummer county=03
fylkenr optional: Alias for `county`. `county` vinner hvis begge er gitt. fylkenr=03
lat optional: Breddegrad (med lon) lat=59.91
lon optional: Lengdegrad (med lat) lon=10.75
radius optional: Søkeradius i meter rundt lat/lon (≥ 1). Sendes urørt videre til NGU; vi klemmer den ikke, og kildens øvre tak er ukjent. radius=5000
limit optional: Maks antall brønner (1–200). En verdi utenfor intervallet AVVISES med 400 — den klemmes ikke. limit=20

Show curl example

# GET https://data.ketl.no/api/connectors/ngu/groundwater
curl \
  -H "Accept: application/json" \
  "https://data.ketl.no/api/connectors/ngu/groundwater"

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

GET

/radonPlanned

Radonkart

Show curl example

# GET https://data.ketl.no/api/connectors/ngu/radon
curl \
  -H "Accept: application/json" \
  "https://data.ketl.no/api/connectors/ngu/radon"

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

GET

/boreholes

Geotekniske borehull fra NADAG (596 233 stk). Romlig oppslag: lat+lon med radius i meter.

lat required: Breddegrad (WGS84 desimalgrader) lat=59.9133
lon required: Lengdegrad (WGS84 desimalgrader) lon=10.7078
radius optional: Søkeradius i meter (standard 1000) radius=1000
limit optional: Maks antall borehull (standard 50) limit=20

Show curl example

# GET https://data.ketl.no/api/connectors/ngu/boreholes?lat=59.9133&lon=10.7078
curl \
  -H "Accept: application/json" \
  "https://data.ketl.no/api/connectors/ngu/boreholes?lat=59.9133&lon=10.7078"

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

GET

/mineralsPlanned

PLANLAGT (501) — mineralforekomster fra NGU MinNo

MinNo eksponerer dataene via GeoServer WFS, ikke REST. Ruta svarer 501 not_implemented inntil en WFS-klient er på plass. I mellomtiden: ogc.ngu.no/geoserver/mineralressurser/wfs eller GeoNorge-portalen.

bbox optional: Avgrensningsboks lat1,lon1,lat2,lon2 bbox=59.8,10.6,60.0,10.9

Show curl example

# GET https://data.ketl.no/api/connectors/ngu/minerals
curl \
  -H "Accept: application/json" \
  "https://data.ketl.no/api/connectors/ngu/minerals"

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

Access and pricing

The Geological Survey of Norway (NGU) is openly available — create an account to get started.

geologigrunnvannradonmineralbergrunn