# registry-mcp — the company registry MCP: company data for AI agents, any country

One MCP server and one REST API over national business registries — same JSON
from both: lookup, name search, statutory filing deadlines. Live now: Norway
(NO), Enhetsregisteret / Brønnøysundregistrene ("brreg"), by organisasjonsnummer
(orgnr), with VAT status; the United Kingdom (GB, never UK), Companies House, by
company number (CRN), with accounts and confirmation statement dates; and Sweden
(SE), Bolagsverket, by organisationsnummer, with the aktiebolag general-meeting
and årsredovisning deadlines.

Sweden has no name search: Bolagsverket's free API has four operations and none
takes a company name, so search_company for SE returns not_implemented. Look a
Swedish company up by its ten-digit organisationsnummer (a sole trader is looked
up by their twelve-digit personnummer, which is that trader's company number).

## Add it as an MCP server

    claude mcp add registry-mcp --transport http https://api.foretak.dev/mcp?src=llms
    uvx registry-mcp      # local stdio server (Python)
    npx registry-mcp      # local stdio server (Node)

Tools: lookup_company(id, country="NO"), search_company(name, country="NO"),
company_deadlines(id, country, today), validate_company_id(id, country),
list_countries(). Resource: registry://rules/{country}. Prompt: explain_company.

## Or call the REST API

    curl https://api.foretak.dev/v1/NO/company/923609016
    curl https://api.foretak.dev/v1/GB/company/00445790
    curl https://api.foretak.dev/v1/SE/company/5560160680

Returns a CompanyReport: name, legal_form, status, vat_registered, addresses,
industry_codes, employees, share_capital, euid, advertising_protected,
confidence, cached, fetched_at, and source_url + license for citation. A field
one register publishes and another does not is null — never "", never 0, never
invented. status is a lifecycle enum and status_detail is the sentence behind
it: read status_detail and notes, because "active" is derived differently in
each register — from four brreg flags in Norway, from one published status
in the UK, and from three independent signals in Sweden, which publishes no
status field at all. For SE, is_active means "on the register and not winding
down", which is not the same as trading.
Other routes: GET /v1/countries, GET /v1/{country}/search?q={name},
GET /v1/{country}/company/{id}/deadlines?today=YYYY-MM-DD,
GET /v1/{country}/validate/{id}, GET /health.
Errors are always {"error": {"code", "message", "hint"}}. The hint names the
next call you can make — read it before retrying.

## More

Full endpoint and tool docs: https://api.foretak.dev/llms-full.txt
MCP manifest: https://api.foretak.dev/server.json
Source (MIT): https://github.com/foretak/registry-mcp
Data: Enhetsregisteret (NLOD 2.0, attribution required); Companies House (Crown
copyright, free to re-use); Bolagsverket and Statistics Sweden (free re-use
under the EU high-value-datasets regime — the publisher names no licence, so
neither do we).