uk-legal-mcp

UK legal research sources for your AI assistant.

uk-legal-mcp connects ChatGPT, Claude, VS Code, Cursor, and other MCP-aware clients to UK case law, legislation, Hansard, bills, votes, committees, OSCOLA citation parsing, and HMRC guidance. It returns primary source text and citation metadata so your agent can build evidence packs you can check and footnote.

No API keys are required for the legal sources. HMRC’s authenticated Making Tax Digital endpoint is optional.

For best results, tell your assistant to use the uk-legal-mcp server and not to answer from memory when a UK legal source can be checked.

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Quick Start

Use the hosted MCP endpoint:

https://uk-legal-mcp.fly.dev/mcp

For clients that use mcpServers JSON:

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

For local stdio use:

uvx uk-legal-mcp

Claude Desktop local config:

{
  "mcpServers": {
    "uk-legal": {
      "command": "uvx",
      "args": ["uk-legal-mcp"]
    }
  }
}

If a hosted tool stops responding, refresh the server from your client’s Apps / Customise menu. For very large Acts, local mode can be more reliable because it uses your own IP rather than a shared cloud IP.

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Try This First

After connecting the server, start a fresh chat and ask:

I am checking a UK legal source. Only use uk-legal-mcp. Find the source, give me the source URL, and tell me what metadata I should check before relying on it.