Plugs Claude directly into the UK Companies House API with your free government key. You get search across 5+ million companies and officers, full profile lookups, filing history with document retrieval, PSC ownership chains, charge registers, insolvency records, and officer appointment networks. The due diligence check runs automated red flag scans with severity ratings. Also ships as a standalone CLI if you want the same tooling in your terminal. Useful for compliance work, investor research, supplier vetting, or any workflow where you need to pull UK corporate data without leaving your editor.
claude mcp add --transport stdio io.github.aicayzer-companies-house uvx companies-house