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MCP server for Norway's Brønnøysund business registry — lookup, search, roles.
MCP server for Norway's Brønnøysund business registry — lookup, search, roles.
Valid MCP server (2 strong, 3 medium validity signals). No known CVEs in dependencies. Package registry verified. Imported from the Official MCP Registry.
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Add this to your MCP configuration file:
{
"mcpServers": {
"io-github-hellosverre-brreg": {
"args": [
"-y",
"brreg-mcp"
],
"command": "npx"
}
}
}From the project's GitHub README.
MCP server for the Norwegian Central Coordinating Register for Legal Entities (Brønnøysundregistrene / Enhetsregisteret). Gives Claude Code and other MCP-compatible clients direct access to Norwegian company data — lookup, search, roles, subunits, and live updates.
No API key needed. Data is served by the free, public Brønnøysund Open Data API.
Norwegian devs, accountants, and analysts constantly need to look up orgnumbers, find board members, or track subsidiary changes. Doing it through the web UI is slow; doing it with curl loses context. With this MCP, you just ask Claude.
Add to your MCP config (~/.claude/settings.json or per-project .claude/settings.json):
{
"mcpServers": {
"brreg": {
"command": "npx",
"args": ["-y", "brreg-mcp"]
}
}
}
Restart Claude Code. Verify with /mcp — you should see brreg listed with 5 tools.
claude_desktop_config.json:
{
"mcpServers": {
"brreg": {
"command": "npx",
"args": ["-y", "brreg-mcp"]
}
}
}
Same command: npx, args: ["-y", "brreg-mcp"] configuration.
git clone https://github.com/hellosverre/brreg-mcp
cd brreg-mcp
npm install
npm run build
Then point your MCP client at node /absolute/path/to/brreg-mcp/dist/index.js.
| Tool | What it does |
|---|---|
lookup_company | Full details for one company by its 9-digit orgnr — name, address, NACE codes, employees, VAT status, bankruptcy, foundation date. |
search_companies | Search by name and optional filters (municipality, org form, industry code, VAT-registered, bankruptcy status). Paginated. |
get_company_roles | All registered roles (board, CEO, chair, auditor, sole proprietor) for a company. |
search_subunits | Find subunits (branch offices, production sites) — scope to a parent company or by municipality/industry. |
get_recent_updates | Feed of entity changes for monitoring new registrations, bankruptcies, status shifts. |
"Look up orgnr 984661177 and show me the board."
"Find all VAT-registered software consultancies (NACE 62.010) in Oslo."
"List every subunit of Vygruppen AS."
"What Norwegian companies were just registered in the last hour?"
All data comes from data.brreg.no. Per Brønnøysund's open data terms, the data is free to use. Some endpoints (roles with personal identification numbers) require Maskinporten authentication and are not exposed by this server.
npm install # install deps
npm run dev # run server in watch mode via tsx
npm run smoke # hit the real brreg API to verify connectivity
npm run build # compile to dist/
npx tsx scripts/mcp-probe.ts # end-to-end stdio test
MIT
Not affiliated with Brønnøysundregistrene or the Norwegian government. This is an independent open-source project using the public open-data API.
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