Eur Lex MCP Server
Search EU legislation, CJEU case law, and treaties; traverse CELLAR graph; browse EuroVoc concepts.
Connect it
Settings → Connectors → Add custom connector
URL: https://eur-lex.caseyjhand.com/mcpSettings → Apps & Connectors → Advanced → Developer mode
Create connector with URL: https://eur-lex.caseyjhand.com/mcp{
"mcpServers": {
"eur-lex-mcp-server": {
"url": "https://eur-lex.caseyjhand.com/mcp"
}
}
}claude mcp add --transport http eur-lex-mcp-server https://eur-lex.caseyjhand.com/mcp{
"servers": {
"eur-lex-mcp-server": {
"type": "http",
"url": "https://eur-lex.caseyjhand.com/mcp"
}
}
}{
"mcpServers": {
"eur-lex-mcp-server": {
"command": "npx",
"args": [
"-y",
"@cyanheads/eur-lex-mcp-server@0.19.0"
]
}
}
}claude mcp add eur-lex-mcp-server -- npx -y @cyanheads/eur-lex-mcp-server@0.19.07 tools, verified live
eurlex_lookup_celexread-onlyResolve an EU legal citation â a CELEX number, ELI URI, ECLI, or an OJ citation naming its act type and year (e.g. "Regulation (EU) 2016/679", "Directive 95/46/EC") â to its canonical CELLAR work, confirming it exists before you fetch or traverse it. Returns the work URI, confirmed CELEX number, document type, date, and the ECLI of a case that carries one. A CELEX that CELLAR holds under sever
eurlex_browse_subjectsread-onlySearch the EuroVoc thesaurus, resolving a keyword into concept URIs usable in the eurovoc_concept subject filter of eurlex_search_documents. Matches both preferred and alternative (non-preferred) labels, so a common synonym reaches the concept it stands for. Returns each concept URI, its preferred label in the requested language, code, broader (parent) label, and the alternative label that matched
eurlex_search_documentsread-onlySearch EU legislation, treaties, and preparatory acts across the CELLAR corpus by document type, date range, EuroVoc subject, author institution, and in-force status. Keyword matches English titles and CELEX strings only â there is no full-text body search. Corrigenda are excluded by default so primary acts fill the page (set include_corrigenda to include them). Returns a page of CELEX numbers,
eurlex_get_casesread-onlySearch CJEU and General Court case law â judgments, orders, and Advocate General opinions â by case number, court, case type, keyword, and date range. A case number reaches every judgment, order, and AG opinion filed under it. By default only these primary records are returned; derivative judicial information notices, case abstracts, summaries, and corrigenda are excluded so distinct cases fil
eurlex_get_documentread-onlyFetch the metadata and full text of an EU act or case-law record by CELEX number, ELI URI, or work URI. Returns structured metadata (title, date, type, author institution, Advocates General, legal basis, EuroVoc subjects, in-force status and, for an act not in force, its repealing acts, end of validity, or pending entry into force; for case law, the ECLI and the formation, referring court, subject
eurlex_get_relationsread-onlyTraverse the one-hop CDM relationship graph of an EU act: what it amends or is amended by, what it repeals or is repealed by (explicit and implicit), its consolidated versions, national transposition measures, its legal basis and the works adopted under it, the CJEU rulings interpreting it (or, for a ruling, the acts it interprets), and works that cite it. Returns direct relations only, paginated
eurlex_query_sparqlread-onlyRun a raw, read-only SPARQL SELECT against the CELLAR Virtuoso endpoint â an escape hatch for CDM ontology traversals the curated tools do not cover. Only SELECT is accepted; update forms and ASK/CONSTRUCT/DESCRIBE are rejected before execution, and results are capped at the server row cap (100 by default). The cdm:, skos:, and xsd: prefixes are auto-injected.
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