Companies House MCP Server

UK Companies House API integration for company search and beneficial ownership (PSC) data.

Install


ark install marketplace/mcps/companies-house-mcp

Or with Helm:


cd mcps/companies-house-mcp
helm install companies-house-mcp ./chart -n default --create-namespace

Tool	Description
`get_uk_company_number`	Search for a UK company by name, returns company numbers, status, and addresses
`get_uk_person_in_control`	Get persons with significant control (PSC / beneficial owners) for a company

Set via Kubernetes Secret companies-house-api-key:

Variable	Description
`COMPANIES_HOUSE_API_KEY`	API key from Companies House Developer Hub

Authentication uses HTTP Basic Auth with the API key as username (no password).


tools:
  - type: mcp
    name: companies-house-get-uk-company-number
  - type: mcp
    name: companies-house-get-uk-person-in-control