Legal

Data source: Brønnøysundregistrene

REST Bridge Endpoint https://context.gnist.ai/rest/brreg/

Authentication

All requests require a Gnist-API-Key header (or api_key query parameter).

Free tier: 100 calls/day. Get your API key.

Tools (6)

lookup_brreg_company
search_brreg_companies
get_brreg_company_roles
get_brreg_subsidiaries
get_brreg_recent_changes
report_feedback

lookup_brreg_company

Look up a Norwegian company by its 9-digit organisation number.

Returns full company record including legal form, industry code, address,
employee count, registration date, and VAT/bankruptcy status.

Args:
org_number: Norwegian org number — 9 digits, with or without spaces/dashes
(e.g. "923609016", "923 609 016").

Returns:
Company record, or {"error": "not_found"} if the org number is unknown.

Parameter	Type	Required	Description
`org_number`	`string`	required	Norwegian org number — 9 digits, with or without spaces/dashes (e.g. "923609016", "923 609 016").

Request Body

{
  "org_number": "123456789"
}

search_brreg_companies

Search the Norwegian Business Registry by name and/or attributes.

At least one filter parameter must be provided.

Args:
name: Company name or partial name to search for (case-insensitive).
municipality_code: 4-digit Norwegian municipality code (kommunenummer),
e.g. "0301" for Oslo.
industry_code: NACE industry code, e.g. "62.010" for software development.
legal_form: Legal form code, e.g. "AS" (private limited), "ASA" (public limited),
"ENK" (sole trader), "DA" (general partnership).
max_results: Maximum number of results to return (1–50, default 10).

Returns:
Object with count and list of matching company records.

Parameter	Type	Required	Description
`name`	`any`	optional	Company name or partial name to search for (case-insensitive).
`municipality_code`	`any`	optional	4-digit Norwegian municipality code (kommunenummer), e.g. "0301" for Oslo.
`industry_code`	`any`	optional	NACE industry code, e.g. "62.010" for software development.
`legal_form`	`any`	optional	Legal form code, e.g. "AS" (private limited), "ASA" (public limited), "ENK" (sole trader), "DA" (general partnership).
`max_results`	`integer`	optional	Maximum number of results to return (1–50, default 10). (default: 10)

Request Body

{
  "query": "example"
}

get_brreg_company_roles

Get the leadership roles for a Norwegian company.

Returns board members, CEO, signatories, and other registered roles
with person names and role types.

Args:
org_number: Norwegian org number — 9 digits, with or without spaces/dashes.

Returns:
Object with count and list of roles, each with role_type, person_name,
birth_year (if available), and entity details for corporate roles.

Parameter	Type	Required	Description
`org_number`	`string`	required	Norwegian org number — 9 digits, with or without spaces/dashes.

Request Body

{
  "org_number": "123456789"
}

get_brreg_subsidiaries

Get direct subsidiaries of a Norwegian company.

Finds all companies registered with the given org number as their
parent entity (overordnetEnhet).

Args:
org_number: Norwegian org number of the parent company.
max_results: Maximum number of subsidiaries to return (1–50, default 50).

Returns:
Object with count and list of subsidiary company records.

Parameter	Type	Required	Description
`org_number`	`string`	required	Norwegian org number of the parent company.
`max_results`	`integer`	optional	Maximum number of subsidiaries to return (1–50, default 50). (default: 50)

Request Body

{
  "org_number": "123456789"
}

get_brreg_recent_changes

Get recent changes to monitored Norwegian companies.

Returns field-level diffs (before/after values) for companies whose
registry data changed since the given timestamp. Only companies on the
configured watchlist are tracked.

Args:
since: ISO 8601 timestamp — return changes captured after this time.
limit: Maximum number of changes to return (1–100, default 50).

Returns:
Object with count and list of change records, each containing
entity_id, changed_at timestamp, and a list of field changes
with before/after values.

Parameter	Type	Required	Description
`since`	`string`	required	ISO 8601 timestamp — return changes captured after this time (e.g. "2026-04-01T00:00:00Z").
`limit`	`integer`	optional	Maximum number of changes to return (1–100, default 50). (default: 50)

Request Body

{
  "since": "example"
}

report_feedback

Report a bug, feature request, or general feedback for this data source.

Use this when something doesn't work as expected, when you'd like
a new feature, or when you have suggestions for improvement.

Args:
feedback: Describe the issue or suggestion.
feedback_type: One of 'bug', 'feature_request', or 'general'.

Parameter	Type	Required	Description
`feedback`	`string`	required
`feedback_type`	`string`	optional	(default: "general")

Request Body

{
  "feedback": "example"
}

Quick Start

Shell

curl -X POST "https://context.gnist.ai/rest/brreg/lookup_brreg_company" \
  -H "Content-Type: application/json" \
  -H "Gnist-API-Key: YOUR_API_KEY" \
  -d '{"org_number": "example"}'

Python

import httpx

resp = httpx.post(
    "https://context.gnist.ai/rest/brreg/lookup_brreg_company",
    headers={"Gnist-API-Key": "YOUR_API_KEY"},
    json={
  "org_number": "example"
},
)
print(resp.json())