registry-mcp — national company registries MCP Server

io.github.foretak/registry-mcp

Repository Registry

What is the registry-mcp — national company registries MCP server?

The company registry MCP: brreg orgnr, Companies House, Bolagsverket organisationsnummer.

How to install registry-mcp — national company registries

Copy-paste configuration for popular MCP clients.

transport: stdio

Config generated by PluginBench — verify against the source before use.

Environment / auth

REGISTRY_MCP_CONTACT_EMAIL
Contact address sent in the User-Agent to the national registry, as Brønnøysundregistrene asks of API clients. Unset means an anonymous client, which may be blocked upstream.
REGISTRY_MCP_CACHE_PATH
Path to the local SQLite response cache (24 h TTL). Defaults to ./data/cache.sqlite3.
COMPANIES_HOUSE_API_KEY
secret
Companies House REST API key, required for the United Kingdom (GB). Free from developer.company-information.service.gov.uk. Unset means GB lookups return an upstream_error naming this variable; every other country still answers.
BOLAGSVERKET_CLIENT_ID
secret
Bolagsverket OAuth 2 client id, required for Sweden (SE) together with BOLAGSVERKET_CLIENT_SECRET. Free, no contract: request both from Bolagsverket's kundanmälan form. Unset means SE lookups return an upstream_error naming both variables; every other country still answers.
BOLAGSVERKET_CLIENT_SECRET
secret
Bolagsverket OAuth 2 client secret, the other half of BOLAGSVERKET_CLIENT_ID. Both are needed before Sweden (SE) can answer.
BOLAGSVERKET_ENVIRONMENT
Which Bolagsverket environment the Swedish credentials belong to: 'production' (default) or 'test'. It selects the data host and the token host as a pair, so the two can never be mixed.

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "registry-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "registry-mcp"
      ],
      "env": {
        "REGISTRY_MCP_CONTACT_EMAIL": "<YOUR_REGISTRY_MCP_CONTACT_EMAIL>",
        "REGISTRY_MCP_CACHE_PATH": "<YOUR_REGISTRY_MCP_CACHE_PATH>",
        "COMPANIES_HOUSE_API_KEY": "<YOUR_COMPANIES_HOUSE_API_KEY>",
        "BOLAGSVERKET_CLIENT_ID": "<YOUR_BOLAGSVERKET_CLIENT_ID>",
        "BOLAGSVERKET_CLIENT_SECRET": "<YOUR_BOLAGSVERKET_CLIENT_SECRET>",
        "BOLAGSVERKET_ENVIRONMENT": "<YOUR_BOLAGSVERKET_ENVIRONMENT>"
      }
    }
  }
}

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