foretak/registry-mcp

**Company data for AI agents, any country.** One MCP server and REST API, three national registers today: the United Kingdom's **Companies House**, looked up by **company number**; Norway's **Enhetsregisteret** / **Brønnøysundregistrene** (**brreg**), looked up by **organisasjonsnummer** (**orgnr**); and Sweden's **Bolagsverket**, looked up by **organisationsnummer** — one JSON shape whichever you ask.
No install step, over stdio:
What makes it worth a tool slot:
- **Deadlines that cite the rule, not just a date.** company_deadlines gives the next filing date and names why in applies_because — a Norwegian legal form's statutory duty, or "Companies House publishes this date for the company itself" when the register states it rather than us computing it. Quote the reason, not just the number.
- **Never more than 24 hours stale, and it says so.** Every response carries cached and fetched_at. OpenCorporates' own knowledge base tells users to "allow 30 days" for a correction to reach its site — a 30× freshness gap, stated by the incumbent about itself.
- **Seven tools, not fifty** — five registry tools plus two ChatGPT connector aliases. Tool-selection accuracy degrades past 30-50 tools loaded into an agent's context, and some clients cap around 40. Seven tools is roughly 17% of that budget, next to competitors in this space shipping 23 to 78 tools for the same job.
**Security.** Read-only, always — nothing here writes to a register or anywhere else. No credentials are required from a caller; this deployment's own upstream credential (COMPANIES_HOUSE_API_KEY) is read from the environment and never logged or returned. The base lookup calls three named upstreams and nothing else: data.brreg.no, api.company-information.service.gov.uk and gw.api.bolagsverket.se. include=["lei"]/include=["parents"] additionally call api.gleif.org (GLEIF, CC0, keyless); include=["peppol"] additionally resolves a DNS record at the Peppol SML and calls whichever SMP host it names for that participant, falling back to the Peppol Directory (directory.peppol.eu) only when neither answers — see the attachments above. No personal data beyond what each national register already publishes about the entity itself — and because a Swedish sole trader's company number *is* their personnummer, the usage log stores no identifier at all for a country whose identifiers can be a natural person's (legal/privacy.md). This service does not perform sanctions, PEP or adverse-media screening, and it does not verify bank account details. Details: SECURITY.md.
One-click install, for a remote streamable-HTTP server:
Other clients (Claude Desktop, Cursor, VS Code, Cline, plain JSON configs): see docs/clients.md.
Add to ChatGPT
ChatGPT reaches an MCP server through a custom connector, and its deep research mode calls
exactly two tools — search and fetch — which this server ships alongside the five registry
tools. In ChatGPT, open **Settings → Connectors**, add a custom connector, and give it:
https://api.foretak.dev/mcp?src=readme
No authentication, no key, no account. If your ChatGPT plan does not show custom connectors
under Settings → Connectors, turn on **Settings → Security and login → Developer mode** first,
then add the URL from .
search takes one free-text query — a company name, a national identifier, or a name plus a
country ("Tesco United Kingdom") — and returns citable rows; fetch takes a row's id
("NO:923609016") and returns that company's register record **and its statutory filing
deadlines**, with the full JSON of both in metadata.
Add to Claude Desktop
Claude Desktop takes the same URL as a custom connector: **Settings → Connectors → Add custom
connector**, then https://api.foretak.dev/mcp?src=readme. No key. For a local stdio install instead, see
Configuration.
> Status: 0.4.2, live — GET /health returns {"version":"0.4.2","countries":["GB","NO","SE"]}. The five registry tools and their response shapes are frozen; two connector aliases (search, fetch) wrap them for ChatGPT and add no new shape. The hosted API at api.foretak.dev is live, and listed in the official MCP registry as io.github.foretak/registry-mcp. Countries: United Kingdom (Companies House), Norway (brreg), Sweden (Bolagsverket) — see below for each country's identifier format and example calls.