Is Companies House MCP Server safe to use?

Companies House MCP Server has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.

How do I install Companies House MCP Server?

Companies House MCP Server supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.

What can Companies House MCP Server do?

Companies House MCP Server provides 17 tools: search_companies, search_officers, get_company_profile, get_officers, get_appointments and 12 more. See the full tools list on the server page for descriptions and parameters.

What AI clients work with Companies House MCP Server?

Companies House MCP Server is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.

Is Companies House MCP Server actively maintained?

Companies House MCP Server is actively maintained — last commit was 10 days ago. It has 8 GitHub stars.

Companies House MCP Server

companies-house-mcp

MCP server and CLI for the UK Companies House API. Search, filings, officers, due diligence.

8 118/wk 17 tools GitHub npm

No known CVEs

No license

Actively maintained

Last commit 10d ago

Works with most clients

Transport: stdio, sse, http

17 tools · ~802 tok

Grade B · 0.4% of 200K ctx

Edit this pageView history

Legal Finance

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopstdio, sse, http · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "io-github-aicayzer-companies-house": {
      "args": [
        "-y",
        "companies-house-mcp"
      ],
      "command": "npx"
    }
  }
}

Are you the author?

Add this badge to your README to show your security score and help users find safe servers.

Embed in your READMEAbout badges →

[![MCPpedia Score](https://mcppedia.org/api/badge/io-github-aicayzer-companies-house)](https://mcppedia.org/s/io-github-aicayzer-companies-house)

Read me

What Companies House MCP Server does

An unofficial CLI and MCP server for the UK Companies House API. Look up any UK company, check its officers, trace ownership, dig into filings, run a due diligence scan — from your terminal, your scripts, or directly inside Claude, Cursor, or any other AI tool that speaks MCP.

Test This Server

Run this in your terminal to verify the server starts. Then let us know if it worked — your result helps other developers.

npx -y 'companies-house-mcp' 2>&1 | head -1 && echo "✓ Server started successfully"

After testing, let us know if it worked:

Loading README…

Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

83/100across 5 weighted dimensions

How we score →

0255075100

−17

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

Checked companies-house-mcp against OSV.dev.

Inventory

Tools (17)

Click any tool to inspect its schema.

~802 tokens total

Community

Reviews

Be the first to review

Have you used this server?

Share your experience — it helps other developers decide.

How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is Companies House MCP Server safe to use?: Companies House MCP Server has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.
How do I install Companies House MCP Server?: Companies House MCP Server supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
What can Companies House MCP Server do?: Companies House MCP Server provides 17 tools: search_companies, search_officers, get_company_profile, get_officers, get_appointments and 12 more. See the full tools list on the server page for descriptions and parameters.
What AI clients work with Companies House MCP Server?: Companies House MCP Server is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.
Is Companies House MCP Server actively maintained?: Companies House MCP Server is actively maintained — last commit was 10 days ago. It has 8 GitHub stars.

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MCP Security Weekly

Get CVE alerts and security updates for Companies House MCP Server and similar servers.

Community

Discussion

Start a conversation

Ask a question, share a tip, or report an issue.

Has anyone used this with Cursor?How do you handle auth?Any alternatives?

Edit this pageView history

Legal Finance

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopstdio, sse, http · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "io-github-aicayzer-companies-house": {
      "args": [
        "-y",
        "companies-house-mcp"
      ],
      "command": "npx"
    }
  }
}

Are you the author?

Add this badge to your README to show your security score and help users find safe servers.

Embed in your READMEAbout badges →

[![MCPpedia Score](https://mcppedia.org/api/badge/io-github-aicayzer-companies-house)](https://mcppedia.org/s/io-github-aicayzer-companies-house)

Read me

What Companies House MCP Server does

Test This Server

Run this in your terminal to verify the server starts. Then let us know if it worked — your result helps other developers.

npx -y 'companies-house-mcp' 2>&1 | head -1 && echo "✓ Server started successfully"

After testing, let us know if it worked:

README

Companies House CLI & MCP

Everything runs on a free API key. No backend, no subscriptions, no middleman.

Documentation: companies-house.uk

Install

CLI — installs the ch binary:

npm install -g companies-house-cli
ch config set-key your-key-here

MCP server — for Claude, Cursor, Zed, and others:

npx -y companies-house-mcp

Both packages use the same free API key from developer.company-information.service.gov.uk.

What it can do

Search and lookup

search_companies / ch search — find companies by name, with filters for status, type, SIC code, and location
search_officers / ch search-officers — find officers across all companies by name
get_company_profile / ch profile — full company profile: status, addresses, SIC codes, key dates

Officers and ownership

get_officers / ch officers — current and resigned directors, secretaries, and other officers
get_appointments — every company a given officer has ever been appointed to
get_ownership / ch ownership — persons with significant control (PSCs), corporate ownership chains

Filings and financials

get_filings / ch filings — full filing history with document links, filterable by category
get_filing_document — retrieve an individual filing document
get_charges / ch charges — charges and mortgages registered against the company
get_insolvency / ch insolvency — insolvency proceedings, liquidations, administrations

Due diligence

company_report / ch report — everything in one call: profile, officers, ownership, charges, filings, insolvency
due_diligence_check / ch check — automated red-flag scan with HIGH / MEDIUM / LOW severity ratings
officer_network / ch network — map a director's connections across every company they're linked to

Extended

get_company_registers — statutory registers (members, directors, secretaries, charges)
get_exemptions — disclosure exemptions
get_uk_establishments — UK establishments of overseas companies
get_officer_disqualifications — disqualification orders made against an officer

CLI quick reference

ch search "Anthropic"
ch profile 14604577
ch officers 14604577 --all
ch ownership 14604577
ch filings 14604577 --category accounts
ch charges 14604577
ch report 14604577
ch check 14604577
ch network "John Smith"
ch report 14604577 --json | jq '.profile.company_status'
ch report 14604577 --md > report.md

Full reference, flags, and output modes at companies-house.uk/cli.

MCP setup

Add to your client config with your API key and run npx -y companies-house-mcp. Detailed setup for Claude Desktop, Claude Code, Cursor, and Zed at companies-house.uk/mcp.

Development

git clone https://github.com/aicayzer/companies-house-mcp.git
cd companies-house-mcp
pnpm install && pnpm build && pnpm test:unit

See CONTRIBUTING.md for the full guide. Docs at companies-house.uk.

Disclaimer

Not affiliated with or endorsed

... View full README on GitHub

Loading README…

Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

83/100across 5 weighted dimensions

How we score →

0255075100

−17

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

Checked companies-house-mcp against OSV.dev.

Inventory

Tools (17)

Click any tool to inspect its schema.

~802 tokens total

Community

Reviews

Be the first to review

Have you used this server?

Share your experience — it helps other developers decide.

How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is Companies House MCP Server safe to use?: Companies House MCP Server has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.
How do I install Companies House MCP Server?: Companies House MCP Server supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
What can Companies House MCP Server do?: Companies House MCP Server provides 17 tools: search_companies, search_officers, get_company_profile, get_officers, get_appointments and 12 more. See the full tools list on the server page for descriptions and parameters.
What AI clients work with Companies House MCP Server?: Companies House MCP Server is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.
Is Companies House MCP Server actively maintained?: Companies House MCP Server is actively maintained — last commit was 10 days ago. It has 8 GitHub stars.