Is UK Due Diligence free?

Yes, UK Due Diligence is free to use.

How do I install UK Due Diligence?

UK Due Diligence supports both local and remote installation. For local use, install it via pip (uvx) and add the configuration to your AI app. For remote access, add the server URL to your MCP configuration.

What AI apps work with UK Due Diligence?

UK Due Diligence uses the Model Context Protocol (MCP) and works with any MCP-compatible AI app, including Claude, ChatGPT / Codex, Gemini, Copilot, Cursor, and more.

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UK Due Diligence MCP Server

by BOUCH

Business ToolsLow Risk10.0LocalRemote

Free

Companies House, Charity Commission, Land Registry, Gazette, and HMRC VAT — one MCP server.

About

UK Due Diligence gives AI agents access to five official UK government registers for business and individual checks. Search and profile UK companies, check directors and persons of significant control, look up disqualified directors, verify VAT numbers, search insolvency notices in The Gazette, look up charity records, and search Land Registry title ownership. No API key required — all data comes directly from public government APIs.

Security Report

10.0

Low Risk10.0Low Risk

Valid MCP server (1 strong, 1 medium validity signals). No known CVEs in dependencies. Package registry verified. Imported from the Official MCP Registry. Trust signals: trusted author (7/7 approved).

5 files analyzed · 1 issue found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

How to Install & Connect

Available as Local & Remote

This plugin can run on your machine or connect to a hosted endpoint. during install.

Getting Started

Once installed, try these example prompts and explore these capabilities:

1"Search Companies House for Acme Ltd and give me a full company profile"
2"Who are the directors of company number 12345678?"
3"Check if John Smith is a disqualified director"
4"Validate VAT number GB123456789"
5"Are there any insolvency notices for this company in The Gazette?"
6"Look up the Land Registry title for 14 High Street, London EC1A 1BB"
7Tool: company_search — Find companies by name on Companies House
8Tool: company_profile — Full company details including status, accounts, and SIC codes
9Tool: company_officers — Directors, secretaries, and officers for a company
10Tool: company_psc — Persons of significant control (beneficial owners)
11Tool: disqualified_search — Check if an individual is a disqualified director
12Tool: vat_validate — Verify a UK VAT registration number
13Tool: gazette_insolvency — Search insolvency notices in The Gazette
14Tool: charity_search — Search UK charities via the Charity Commission
15Tool: land_title_search — Land Registry title ownership lookup

Documentation

View on GitHub

From the project's GitHub README.

Tools across five UK public registers. Zero paywalls. All official APIs.

Give an agent a company name and it pulls corporate status, filing compliance, director networks, beneficial ownership chains, disqualification checks, insolvency notices, VAT validation, and property transactions.

Every data source is a legally-mandated register with a free official API.

Data Sources

Register	API	Auth
Companies House	`api.company-information.service.gov.uk`	API key (free)
Charity Commission	`api.charitycommission.gov.uk`	API key (free)
HMLR Land Registry	`landregistry.data.gov.uk` (SPARQL + REST)	None
The Gazette	`thegazette.co.uk/all-notices` (Linked Data)	None
HMRC VAT	`api.service.hmrc.gov.uk`	None

Tools

Tool	Register	Description
`company_search`	Companies House	Search by name/keyword with status/type filters
`company_profile`	Companies House	Full profile: status, filing compliance, charges
`company_officers`	Companies House	Directors with high-appointment-count risk flag
`company_psc`	Companies House	Beneficial owners, PSC chain, offshore flags
`disqualified_search`	Companies House	Search disqualified directors by name
`disqualified_profile`	Companies House	Full disqualification record, period, Act, companies
`charity_search`	Charity Commission	Search by name, filter by registration status
`charity_profile`	Charity Commission	Full record: trustees, finances, governing doc
`land_title_search`	HMLR	Property ownership via SPARQL PPI query
`gazette_insolvency`	The Gazette	Corporate insolvency notices (codes 2441-2460)
`gazette_notice`	The Gazette	Full legal wording of a specific insolvency notice
`vat_validate`	HMRC VAT	Trading name + address as registered for VAT
`search`	All registers	Fan-out search across all registers — returns IDs for ChatGPT deep research
`fetch`	All registers	Fetch a structured record by ID returned from `search`

Prompts

Three workflow prompts orchestrate multi-step investigations. Available via get_prompt on tool-only clients (ChatGPT) and natively on protocol-aware clients (Claude, Inspector).

Prompt	Description
`due_diligence`	Full DD check — company, officers, PSC, gazette, disqualification
`charity_due_diligence`	Charity profile + insolvency check
`director_check`	Disqualification status check for an individual

Connect

Hosted (no install)

{
  "mcpServers": {
    "uk-due-diligence": {
      "type": "http",
      "url": "https://uk-due-diligence-mcp.fly.dev/mcp"
    }
  }
}

Local (uvx)

export CH_API_KEY=your_key
export CHARITY_API_KEY=your_key

{
  "mcpServers": {
    "uk-due-diligence": {
      "type": "stdio",
      "command": "uvx",
      "args": ["uk-due-diligence-mcp"]
    }
  }
}

API Keys

Key	Where to get it
`CH_API_KEY`	developer.company-information.service.gov.uk — free
`CHARITY_API_KEY`	api-portal.charitycommission.gov.uk — free

HMLR, Gazette, and HMRC VAT require no API key.

Demo

Run due diligence on Carillion PLC

The agent calls company_search to resolve the company number, then company_profile, company_officers, company_psc, and gazette_insolvency — reasoning across all five registries to surface risk signals.

Project Structure

uk-due-diligence-mcp/
├── server.py           # FastMCP init, tool registration, transport config
├── companies_house.py  # company_search, company_profile, company_officers, company_psc
├── disqualified.py     # disqualified_search, disqualified_profile
├── charity.py          # charity_search, charity_profile
├── land_registry.py    # land_title_search (SPARQL + REST)
├── gazette.py          # gazette_insolvency (JSON-LD, notice codes 2441-2460)
├── hmrc_vat.py         # vat_validate
├── http_client.py      # Shared httpx clients, retry backoff, error formatting
├── inputs.py           # Pydantic v2 input models
├── fly.toml
├── Dockerfile
├── pyproject.toml
└── .env.example

Technical Notes

The Gazette API

REST+RDF linked-data pattern. Corporate insolvency notice codes span 2441-2460. The read API is unauthenticated; auth is write-only (for placing notices).

HMLR Land Registry

Free endpoint at api.landregistry.data.gov.uk. Returns RDF/Turtle by default — the SPARQL endpoint is used for Price Paid Index queries. Covers England and Wales only.

High-Appointment-Count Signal

Directors with 10+ other active appointments are flagged. A director on 40+ companies is a common pattern in nominee director operations and phoenix company structures.