UK Data: UK Companies House MCP Server

by co-reliness Your server? Claim it

answering

UK Data: UK Companies House is answering right now. Last checked 9 min ago. It exposes 11 tools.

UK Companies House and KYB: search, officers, owners (PSC), filings, charges, banned directors

Uptime history 69 hours of history

69 hours agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

104 ms

Response time

average over 24h

open, no key

Access

streamable-http

Nothing serious here today

Today is the operative word: we check UK Data: UK Companies House every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 9 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add uk-companies --transport http https://ukdata.reliness.co.uk/mcp/uk-companies

Settings → Connectors → Add custom connector, then paste this address

https://ukdata.reliness.co.uk/mcp/uk-companies

~/.codex/config.toml

[mcp_servers.uk-companies]
url = "https://ukdata.reliness.co.uk/mcp/uk-companies"

.cursor/mcp.json

{
  "mcpServers": {
    "uk-companies": {
      "url": "https://ukdata.reliness.co.uk/mcp/uk-companies"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "uk-companies": {
      "type": "http",
      "url": "https://ukdata.reliness.co.uk/mcp/uk-companies"
    }
  }
}

Available tools 11

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

company

company_charges

Registered charges and mortgages (secured debt) against a UK company number: status, amounts, who the debt is owed to. For credit, lending and due-diligence checks. (cost: 1 credit)

company_filings

Filing history for a company number (accounts, confirmation statements, officer changes, charges). (cost: 1 credit)

company_insolvency

Insolvency cases for a UK company number from Companies House: liquidation, administration, receivership, with dates and the insolvency practitioners handling it. (cost: 1 credit)

company_officers

Directors and secretaries for a company number, with appointment and resignation dates. (cost: 1 credit)

company_profile

Full Companies House profile for a company number: status, SIC codes, registered office, accounts and confirmation statement due dates and overdue flags, charges and insolvency flags. (cost: 1 credit)

company_pscs

Persons with significant control (beneficial owners) for a company number. (cost: 1 credit)

company_search

Search Companies House by name. Returns company number, status, type, incorporation date, address. (cost: 1 credit)

companies

companies_incorporated

Find companies by incorporation date range, SIC codes, status, location or name fragment (Companies House advanced search). New-business lead lists. (cost: 2 credits)

disqualified

disqualified_officers

Search the UK register of disqualified company directors by name. Check whether a person has been banned from running a company, for KYB, onboarding and fraud screening. (cost: 1 credit)

kyb

kyb_check

Full KYB (know your business) check on a UK company number in one call: profile and status, officers, owners (PSCs), overdue filings, registered charges, insolvency, a disqualified-director screen on the board, and Gazette notices, with a risk summary. For supplier onboarding, due diligence and anti-fraud. (cost: 6 credits)

officer

officer_appointments

All directorships a person holds or has held across UK companies (Companies House appointments). Find every company a director is tied to, for due diligence and conflict checks. Pass a name or an officerId. (cost: 1 credit)

Endpoints

URL	Transport	State	Latency	Checked
https://ukdata.reliness.co.uk/mcp/uk-companies	streamable-http	answering	80 ms	9 min ago

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UK Companies House company search, officers and PSC via the official API. Runs on Apify.

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Research on UK accountancy companies from Companies House data: ownership, size, age, filings.

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Read-only UK Companies House tools for due diligence: profile, officers, PSC, charges, insolvency.

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UK Data: UK Companies House — questions

Answers built from our own checks of this server.

What can UK Data: UK Companies House do?

It exposes 11 tools, read directly from the server on our last check. Among them: companies_incorporated, company_charges, company_filings, company_insolvency, company_officers, company_profile and 5 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is UK Data: UK Companies House working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 104 ms. The bar chart above shows every period we have measured.

How do I connect UK Data: UK Companies House?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does UK Data: UK Companies House need an API key?

No. UK Data: UK Companies House completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 11 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is UK Data: UK Companies House?

It answers our handshake in 104 ms on average, which is faster than 93% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.