UK Companies House due diligence and KYB (Registrum)

Connect Remote server

claude mcp add --transport http uk-companies-house-mcp https://registrum.co.uk/api/mcp

{
  "mcpServers": {
    "uk-companies-house-mcp": {
      "url": "https://registrum.co.uk/api/mcp"
    }
  }
}

{
  "servers": {
    "uk-companies-house-mcp": {
      "type": "http",
      "url": "https://registrum.co.uk/api/mcp"
    }
  }
}

Settings > Connectors > Add custom connector
URL: https://registrum.co.uk/api/mcp

Tools 11 found in our last check

• search_company

  Search for UK companies by name. Returns a list of matching companies with their company number, status, type, and registered address. Use this first when you only have a company name and need its company number.

• get_company

  Get an enriched profile for a UK company by its Companies House number. Returns name, status, type, incorporation date, registered address, SIC codes with descriptions, accounts status, confirmation statement status, and derived fields like company_age_years and accounts.overdue…

• get_financials

  Get structured financial data for a UK company, parsed from its iXBRL accounts filed at Companies House. Returns revenue, cost of sales, gross profit, operating profit, net profit, fixed assets, current assets, total equity, net assets, creditors, and average employees for the c…

• get_directors

  Get the current and past officers for a UK company. Despite the tool name, not every entry is a director: the list is the full officer register, so each entry carries an officer_role such as 'director', 'secretary', 'corporate-secretary' or 'llp-member', plus an is_board_directo…

• get_compliance

  Check a UK company's ECCTA identity-verification status - who has verified their identity with Companies House, who is still pending, and who is overdue. The Economic Crime and Corporate Transparency Act requires every director and PSC to verify their identity; enforcement begin…

• get_psc

  Get the PSC (Persons with Significant Control) register for a UK company. Returns individuals, corporate entities, and legal persons who own 25%+ of shares, hold 25%+ of voting rights, or have significant influence or control. Each PSC includes decoded control types in plain Eng…

• get_bundle

  Get several views of one UK company in a single request: profile, ECCTA compliance, financials, PSCs and directors. Prefer this over calling get_company, get_compliance, get_financials, get_psc and get_directors separately - it returns the same data for one API call and one cred…

• get_psc_chain

  Trace the full ownership chain for a UK company by recursively following corporate entity PSCs. Returns a tree showing who ultimately controls the company - natural persons (UBOs), foreign entities, or legal persons - along with why each branch terminated. Each node has a termin…

• get_network

  Map the corporate network connected to a UK company via shared directors. Returns all companies connected through shared board members, up to the specified depth. Each connected company includes its name, number, status, and the directors it shares with the focal company. Useful…

• search

  Search UK companies at Companies House by name or keywords. Returns an object with a results array; each result has id (company:<number>, pass it to fetch), title (company name, number and status) and url (the company page on registrum.co.uk). Up to 10 results, in relevance orde…

• fetch

  Fetch one UK company by an id from search (company:<number>; a bare company number also works). Returns an object with id, title (company name), url (company page on registrum.co.uk), text (a plain-English summary followed by the full enriched profile as JSON: status, type, inco…

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