BusinessStandardNLOD

Altinn / Enhetsregisteret

Name: Altinn / Enhetsregisteret
License: NLOD

Supplementary company information from the Altinn platform. Accounting obligations, industry codes (NACE), sector codes and register history. Complements Brønnøysundregistrene with additional information.

1.1M rows

Data volume

Daily

Updates

MCP tools

Example response — /entities/{orgnr}

{
  "data": "..."
}

MCP integration

Available MCP tools

altinn.entity.lookup

altinn.nace.list

altinn.org_forms

Configuration for Claude Desktop / Cursor

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

Analysis apps that use this source

Ready-made tools built on Altinn / Enhetsregisteret data. Use them directly in the browser, or wire the same data into your own analysis via the API below.

Altinn Entity Register

Look up Norwegian organisations via Altinn Enhetsregisteret — name, address, contact details and organisation type. Open API, no login required.

Industry codes

Search NACE SN2007 industry codes from SSB KLASS — find the correct industry classification for Norwegian businesses. The standard industrial classification.

API endpoints

GET

/entities/{orgnr}

Hent selskapsinfo fra Altinn

Show curl example

# GET https://data.ketl.no/api/connectors/altinn-er/entities/{orgnr}
curl \
  -H "Accept: application/json" \
  "https://data.ketl.no/api/connectors/altinn-er/entities/{orgnr}"

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

GET

/nace-codes

Næringskoder

Show curl example

# GET https://data.ketl.no/api/connectors/altinn-er/nace-codes
curl \
  -H "Accept: application/json" \
  "https://data.ketl.no/api/connectors/altinn-er/nace-codes"

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

Access and pricing

Altinn / Enhetsregisteret is openly available — create an account to get started.

foretakselskapnaceregisteroffentlig