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CLI
The `ch` command. Search the register, pull a report, pipe it to `jq`, or save it as Markdown.
Companies HouseCLI and MCP
Read the UK public register from your terminal or your AI assistant. Your own key, no hosted backend.
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MCP server
Connect Claude Code, Claude Desktop, Codex, Cursor or Zed to 18 tools backed by your own API key.
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Filed documents
Retrieve the filed PDF itself, not just its metadata, and get it back wherever the server runs.
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Honest summaries
Screening output states what it found, what it could not check, and what the register cannot establish.