Companies House (UK)

liveGovernmentFinance

UK statutory company registry — search, officers, filings, persons with significant control. Free key required.

6tools
0msauth
free tier50 calls/day
🔑Authentication

Companies House requires a free API key. Pass _apiKey on the gateway URL or register a developer key directly with HMRC.

Config with credentials
{
  "mcpServers": {
    "pipeworx-companies-house": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://gateway.pipeworx.io/companies-house/mcp?_apiKey=your_ch_key"
      ]
    }
  }
}

Get an API key →

Tools

search_companiesrequired: query

Search UK Companies House by company name. Returns matches with company number, name, status (active/dissolved), type, registered office address, and incorporation date. Use the company_number to look

Parameters
NameTypeDescription
queryreqstringCompany name
items_per_pageoptnumber1-100 (default 20)
start_indexoptnumberPagination offset
▶Try it
get_companyrequired: company_number

Fetch a single UK company profile by company number. Returns registered name, status, type, SIC codes, registered office, accounts/confirmation-statement due dates, and links to officers/filings/charg

Parameters
NameTypeDescription
company_numberreqstringUK company number
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get_officersrequired: company_number

List directors, secretaries, or LLP members for a UK company by company_number (from search_companies). Returns each officer's name, role, appointment/resignation dates, occupation, nationality, count

Parameters
NameTypeDescription
company_numberreqstringUK company number
items_per_pageoptnumber1-100
start_indexoptnumberPagination offset
register_typeoptstringdirectors | secretaries | llp-members
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get_filingsrequired: company_number

Retrieve filing history for a UK company by company_number (from search_companies). Returns up to 25 filings per page — each with category, type, description, filing date, action date, transaction ID,

Parameters
NameTypeDescription
company_numberreqstringUK company number
categoryoptstringOptional filter (accounts, confirmation-statement, officers, etc.)
items_per_pageoptnumber1-100
start_indexoptnumberPagination offset
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get_persons_with_significant_controlrequired: company_number

Retrieve PSC (beneficial owner) records for a UK company by company_number (from search_companies). Returns each PSC's name, kind (individual-person / corporate-entity / legal-person), natures of cont

Parameters
NameTypeDescription
company_numberreqstringUK company number
items_per_pageoptnumber1-100
start_indexoptnumberPagination offset
▶Try it
get_charges

Retrieve the charges register for a UK company by company_number (from search_companies) OR company NAME \u2014 secured lending (mortgages, debentures, fixed/floating charges) registered against the c

No parameters required.

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Test with curl

The gateway speaks JSON-RPC 2.0 over HTTP POST. You can test any pack directly from the terminal.

List available tools
bash
curl -X POST https://gateway.pipeworx.io/companies-house/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'
Call a tool
bash
curl -X POST https://gateway.pipeworx.io/companies-house/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"search_companies","arguments":{"query": "hello"}}}'

Use with the SDK

Install @pipeworx/sdk to call tools from any TypeScript/Node project.

TypeScript
import { Pipeworx } from '@pipeworx/sdk';
const px = new Pipeworx();
const result = await px.call("search_companies", {"query":"example"});
ask_pipeworx
// Or ask in plain English:
const answer = await px.ask("uk statutory company registry — search, officers, filings, persons with significant control");