Uk Caselaw MCP server

UK Case Law — Find Case Law

Judgments and tribunal decisions of the UK courts, from The National Archives' Find Case Law service: the Supreme Court, Privy Council, Court of Appeal, High Court, Court of Protection, Family Court, the Upper and First-tier Tribunals and the Employment Appeal Tribunal.

Part of Pipeworx — an MCP gateway connecting AI agents to 1576+ live data sources.

Search by subject, party or judge, then read the full text of any judgment from its neutral citation — so a quoted passage or a cited authority can be checked against what the court actually wrote.

This is UK law only. US case law is a separate corpus served by court-listener (searchcaselaw, findcase, getopinion); an American authority returned for a UK question is a wrong answer, not a near miss.

Auth

None. No key, no signup. Requests carry a browser User-Agent because the service rejects a bare fetch signature.

Tools

The usual path is searchukcaselaw → take the neutralcitation or identifier → getuk_judgment.

Neutral citations

A neutral citation maps onto a Find Case Law path by rule — [2026] EWHC 1996 (Comm) is ewhc/comm/2026/1996, [2023] UKSC 42 is uksc/2023/42. The rule is a good first guess, so getukjudgment tries it and falls back to searching the citation text when the derived path 404s, reporting which route resolved it in resolved_by. Either form is accepted as input.

Data sources

(Akoma Ntoso XML)

• Search: https://caselaw.nationalarchives.gov.uk/atom.xml (Atom feed)
• Judgment text: https://caselaw.nationalarchives.gov.uk//data.xml

• Service:

Judgments are Crown copyright, published under the Open Justice Licence.

Caveats worth passing to a user

published to it — comprehensively from 2003 for some courts and much later for others. A missing older authority means not held here, not no such case. For historic authority a law-report subscription is still the answer.

• Coverage starts recently. Find Case Law holds judgments the courts

returns unknowncourtcode and points at listukcourts. Codes look like uksc, ewca/civ, ewhc/comm and cannot be guessed from a court's name.

• An unrecognised court code is rejected, not ignored. searchukcaselaw

write finds more than a legal concept it never names.

• Search is over the judgment text, so a phrase the court would actually

bounds the response with max_chars and sets truncated so a cut-off text is never mistaken for the whole judgment.

• Judgments are long — 140k–450k characters is ordinary. getukjudgment

unrecognised sort with an empty feed, which would read as "no such cases", so the pack rejects one instead of passing it through.

• Only newest, oldest and relevance sort. Upstream answers an

Quick Start

Add to your MCP client (Claude Desktop, Cursor, Windsurf, etc.):

{
  "mcpServers": {
    "uk-caselaw": {
      "url": "https://gateway.pipeworx.io/uk-caselaw/mcp"
    }
  }
}

What this endpoint actually serves

Shortened. The full README is on GitHub.