MCP server

UK Companies House due diligence and KYB (Registrum)

io.github.RegistrumUK/uk-companies-house-mcp

Checked 28 Oct 2026, 09:03 UTC · Connected to it and listed its tools

UK Companies House due diligence: beneficial owners, directors, ECCTA, accounts. Hosted, no key

Source

At a glance

Type

MCP server

Publisher

Not verified

Status

Working at last check

Tools

11

Token cost

About 3,957 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

28 Oct 2026, 09:03 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

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

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.uk-companies-house-mcp]
url = "https://registrum.co.uk/api/mcp"

Gemini CLI

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

Cursor

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

VS Code

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

Antigravity

agy mcp add uk-companies-house-mcp https://registrum.co.uk/api/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"uk-companies-house-mcp","server_url":"https://registrum.co.uk/api/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"uk-companies-house-mcp","server_url":"https://registrum.co.uk/api/mcp"}

Tools

• fetch ~226 tokens
  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, incorporation date, regis
• get_bundle ~484 tokens
  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 credit instead of five, a
• get_company ~203 tokens
  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 that are not availab
• get_compliance ~330 tokens
  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 begins 18 November 2026, a
• get_directors ~327 tokens
  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_director boolean that is fal
• get_financials ~524 tokens
  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 current and prior repo
• get_network ~274 tokens
  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 for identifying corp
• get_psc ~511 tokens
  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 English (e.g. 'Owns 25-5
• get_psc_chain ~732 tokens
  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 terminal_reason: natural_pe
• search ~176 tokens
  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 order; results is empty w
• search_company ~170 tokens
  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.

Browse

• GitHub tools
• Booking and scheduling
• Invoicing and accounting
• Company data
• Legal research

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