Eur Lex MCP Server - install, status & alternatives [2026]

01 · Install Eur Lex MCP Server

before you install - you'll need

Set MCP_TRANSPORT_TYPE, MCP_LOG_LEVEL before connecting.

Claude Code

claude mcp add cyanheads-eur-lex-mcp-server --transport http https://eur-lex.caseyjhand.com/mcp

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "cyanheads-eur-lex-mcp-server": {
      "url": "https://eur-lex.caseyjhand.com/mcp"
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

https://eur-lex.caseyjhand.com/mcp

transport: streamable-http

endpoint alive - responded to MCP initialize · probed 2026-09-17

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions · remote - your agent's requests go to eur-lex.caseyjhand.com

endpoint auth accepted our unauthenticated MCP initialize - no credentials needed to connect

license Apache-2.0 - declared in the repository

npm package @cyanheads/eur-lex-mcp-server - published under the repo owner's npm scope (@cyanheads)

registry namespace io.github.cyanheads is GitHub-verified and matches the repo owner

03 · What Eur Lex MCP Server can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

What you can build

With this server connected, an agent can fetch metadata and full text (HTML, Markdown, or Formex4 XML) for an act by CELEX, ELI, or work URI, resolve a CELEX number or ELI URI to its canonical CELLAR work, search the EuroVoc thesaurus to resolve terms to concept URIs, and run a raw, read-only SPARQL SELECT against the CELLAR endpoint.

The 7 tools it gives your agent

Extracted from the project's README - what eur-lex-mcp-server lets an agent do.

eurlex_search_documents: - Search EU legislation, treaties, and preparatory acts by type, date, EuroVoc subject, author institution, and in-force status
eurlex_get_document: - Fetch metadata and full text (HTML, Markdown, or Formex4 XML) for an act by CELEX, ELI, or work URI
eurlex_lookup_celex: - Resolve a CELEX number or ELI URI to its canonical CELLAR work
eurlex_get_cases: - Search CJEU and General Court case law by case number, court, case type, and date range
eurlex_get_relations: - Traverse the CELLAR relationship graph - amendments, repeals, consolidations, legal basis, citations, transpositions
eurlex_browse_subjects: - Search the EuroVoc thesaurus to resolve terms to concept URIs
eurlex_query_sparql: - Run a raw, read-only SPARQL SELECT against the CELLAR endpoint

Latest releases

v0.12.1 · 2026-09-16

mcp-ts-core 0.13.2 adoption and stateless session default · Session posture declared in source - createApp({ sessionMode: 'stateless' }), published on the server card under…

v0.12.0 · 2026-09-10

Resolved legal bases and EuroVoc labels, bounded query timeouts · eurlex_get_document's legal_basis/eurovoc_subjects now return { work_uri, celex_number? }[]/{ concept_uri, label? }[] instead of bare URI strings…

v0.11.0 · 2026-09-09

Provable pagination, national transposition, input validation · eurlex_get_relations gains a national_transposition relation type for member-state implementing measures (#56) · has_more/next_offset continuation proof…

04 · Who maintains Eur Lex MCP Server

eur-lex-mcp-server is maintained by cyanheads. We track 125 MCP servers from cyanheads - 119 actively maintained, 1,816 combined GitHub stars, oldest repo from Dec 2024. Full record: all servers from cyanheads.

05 · Facts

repository: github.com/cyanheads/eur-lex-mcp-server
category: other - ranked #90 of 945 actively-maintained other servers as of 2026-09-18.
release cadence: 10+ releases in the last 90 days (latest 2026-09-16)
registry: io.github.cyanheads/eur-lex-mcp-server (active, first published 2026-06-05 · 35 versions)
packages: npm:@cyanheads/eur-lex-mcp-server · npm:@cyanheads/eur-lex-mcp-server

06 · Eur Lex MCP Server FAQ

Is Eur Lex MCP Server still maintained?

Yes - as of 2026-09-18, its last commit was 2026-09-16 and it shipped 10+ releases in the last 90 days. We re-verify nightly.

What can Eur Lex MCP Server do?

With this server connected, an agent can fetch metadata and full text (HTML, Markdown, or Formex4 XML) for an act by CELEX, ELI, or work URI, resolve a CELEX number or ELI URI to its canonical CELLAR work, search the EuroVoc thesaurus to resolve terms to concept URIs, and run a raw, read-only SPARQL SELECT against the CELLAR endpoint.

How do I install Eur Lex MCP Server?

Run `npx -y @cyanheads/eur-lex-mcp-server`. The README documents 2 environment variables (MCP_TRANSPORT_TYPE, MCP_LOG_LEVEL) to set first. Set MCP_TRANSPORT_TYPE, MCP_LOG_LEVEL before connecting. You can also paste the ready-made client config above.

Does Eur Lex MCP Server require authentication?

No - the endpoint accepted our unauthenticated MCP initialize when probed on 2026-09-17; you can connect without credentials.

07 · Alternatives to Eur Lex MCP Server

Alternatives to Eur Lex MCP Server

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