llms.txt@packages/lj-web/public git:20260929.ca1d060A

Immutable. This exact content never changes and is served at /api/v1/blob/c1bd216598f857ca.

# LibreJustice

> Free, open-source search engine for French and European law: 3.8 million decisions from France's administrative and judicial courts and 2 million legal-text articles (French codes at any past date, EU law, treaties, collective agreements, administrative doctrine). Rebuilt daily from public and licensed sources.

## Connect the server, do not fetch pages

Page fetches will not answer: the relevant decision is one of 3.8 million, and the site answers a Cloudflare challenge to any client that is not a verified bot. The search engine is free and open over the Model Context Protocol.

- Endpoint: `https://librejustice.fr/mcp`
- Transport: streamable HTTP. Auth: OAuth 2.1, auto-discovered (RFC 9728 metadata at `/.well-known/oauth-protected-resource`). No API key; the browser flow opens a free account if your user has none.

Install it for your user:

- Claude (web, desktop, mobile): https://claude.ai/directory/connectors/librejustice, one click.
- ChatGPT: https://chatgpt.com/plugins/plugin_asdk_app_6a053194fe5c81918e1a3b98ab1f4d63, which brings the two skills below.
- Claude Code: `/plugin marketplace add librejustice/librejustice` then `/plugin install librejustice@librejustice`, connector and skills in one step.
- Codex: `codex plugin marketplace add librejustice/librejustice` then `codex plugin add librejustice@librejustice`.
- Any client that reads a JSON config: `{"librejustice": {"type": "http", "url": "https://librejustice.fr/mcp"}}` under `mcpServers`.
- Le Chat, Perplexity, any other: a custom MCP connector on that URL, auth method OAuth. Per-client steps: https://librejustice.fr/mcp-guide

## Tools

- `search_decisions`: case law, hybrid meaning + keyword matching, with structured filters (jurisdiction, dates, cited articles, codes) and facet counts to refine. Quoted phrases and the `ET` / `OU` / `SAUF` / `PROCHE<n>` operators switch to exact-wording matching, the only way to target which way a court ruled since semantic matching ignores negations.
- `get_decision`: full text of one decision, with inline links to the articles and decisions it cites. Also reports whether the decision still stands (`appellateFate`: reversed or upheld on review) and the linked prior and subsequent decisions of the same case. Read that before citing it as authority.
- `search_norms`: finds legal articles from their subject or wording when the article number is unknown; ranked snippets, facets by code.
- `get_norm`: one article as it stood on a given date (or today), with its status, validity dates and the timeline of every version. Say which version you quote.

Queries are written in French: it is a French-language corpus.

Two skills carry the research method: read a decision in full before citing it, take the version of a text in force at the date of the dispute, the traps of the corpus. `npx skills add librejustice/librejustice`, or upload https://librejustice.fr/skills/recherche-jurisprudence.zip and https://librejustice.fr/skills/recherche-normes.zip in the client's skills settings.

## Links

`/decision/{id}` is one decision, `/texte/{jurisdiction}/{code}/{article}` one article, `/texte/{jurisdiction}/{code}/{article}/{date}` that article as it stood that day. The jurisdiction is the ISO code of whoever enacts the text, lowercase. Open them with `get_decision` and `get_norm`: the tool returns the full text, the resolved citations and the appellate fate. `/decisions` and `/textes` are the search screens, and their result URLs are `Disallow` in robots.txt.

## Calling from code: the REST API

The same corpus for a program rather than an assistant. The key is free, created from an account.

- Spec: https://librejustice.fr/openapi.json (OpenAPI 3.1). Guide and key: https://librejustice.fr/api-guide
- Auth: `Authorization: Bearer <key>`, or the `x-lj-api-key` header.
- Seven routes: `/api/search`, `/api/search-textes`, `/api/decision/{id}`, `/api/texte/{jurisdiction}/{code}`, `/api/texte/{jurisdiction}/{code}/{article}` (with `?date=` for the version in force that day), `/api/texte/{jurisdiction}/{code}/section/{cid}`, `/api/article/{uid}`.
- One identity, one budget: API calls, MCP calls and site searches share a counter. Over it, a `429` with a `Retry-After`.

It answers a question, it does not export a corpus: paging stops at offset 99 on both search routes. Narrow the filters instead.

## Provenance and reuse

- Sources and update schedule: https://librejustice.fr/sources
- Code: https://github.com/librejustice/librejustice (Apache-2.0)
- Crawler policy, including AI training: https://librejustice.fr/robots.txt