UK Companies House MCP¶

Remote MCP server (Streamable HTTP, keyless) - UK Companies House data for research and lead-gen agents: a free peek at newly incorporated companies in an area, and one-time £0.49 packs with the full company record - profile, officers, people with significant control, filings and indicators.

Server type: Remote (Streamable HTTP, Cloudflare Worker)
Auth: None (keyless discovery; packs pay per use)
Endpoint: https://uk-ch-mcp.donniertf.workers.dev/mcp
Tools: 4 (discovery, two pack tools, redeem)
Pricing: Free sample; GBP 0.49 one-time per pack
Built by: donniertf (uk-mcp-fleet)
Source: UK Companies House (Open Government Licence v3.0)

Why This Matters for Operators¶

Two operator motions live in this one server. The first is fresh leads: newly incorporated companies are the youngest businesses in the market, and a peek at "who just registered in London" is a prospecting signal for accountants, insurers, web agencies, IT providers - anyone whose customer is a business being born. The second is verification: a KYB pack pulls one company number's profile, officers, PSC and filings into structured JSON for counterparty checks in the conversation.

The fleet is honest about limits: the indicators are field checks on public records, not a due-diligence or Know Your Business opinion - and it is not the official register. For everything between "who is this company" and "should we sign", that is the right framing.

Tools & Capabilities¶

Tool	What the agent can do
`new_cos_discover`	Free peek: up to 5 newly incorporated UK companies for an area (e.g. London); cached 24h
`new_cos_pack`	Paid pack of newly incorporated companies matching an area; returns a Stripe Checkout link, redeemed with a one-time token
`kyb_pack`	Paid pack for one company number: profile, officers, PSC, recent filings and indicators
`redeem_pack`	Instructions to redeem a paid Stripe Checkout session

Free sample: GET /v1/discover/new-cos?area=London (up to 5 companies, 24h cache).

Installation¶

claude mcp add uk-companies-house --transport http https://uk-ch-mcp.donniertf.workers.dev/mcp

No key for discovery. Paid packs return a Stripe Checkout URL inside the tool result; pay GBP 0.49, then redeemit with the one-time token from the redirect.

Configuration¶

{
  "mcpServers": {
    "uk-companies-house": {
      "url": "https://uk-ch-mcp.donniertf.workers.dev/mcp"
    }
  }
}

Business Relevance¶

Accountants, insurers and B2B services watch newly incorporated companies by area as a fresh lead stream.
Sales and ops teams pull a structured company record for prospect qualification without leaving the chat.
Compliance and vendor checks get officers, PSC and filings as JSON, with the "not a KYB opinion" caveat attached.
Researchers get a cheap, agent-shaped view of the UK register instead of scraping HTML.

Integration with CorpusIQ¶

CorpusIQ's read-only connectors cover the numbers inside the business - CRM, email, accounting. The Companies House server covers the outside view of a counterparty or prospect: who they are, who runs them, what they have filed. One question can now start from your pipeline and end at the official filings, each from its own source.

Limitations¶

Indicators are field checks on public Companies House records, not a due-diligence or KYB opinion; it is not the official register.
Free samples are capped (5 rows, 24h cache); the full structured result is behind a one-time GBP 0.49 pack.
Packs are one-time purchases, not a subscription; the fleet's pages offer a refund within 7 days if a pack comes back empty or errors.
UK companies only.

FAQ¶

What is in a KYB pack?¶

Profile, officers, people with significant control, recent filings and field indicators for one UK company number - as structured JSON for your agent.

How much does a pack cost?¶

GBP 0.49, paid once via Stripe Checkout from inside the tool call. There is no subscription; discovery is free.

Where does the data come from?¶

UK Companies House public records, under the Open Government Licence v3.0. The server is clear that it is not the official register - check important facts there.