Law & politics

EUR-Lex (EU law and case law)

EU legislation, treaties, preparatory acts and Court of Justice case law with their amendment graph.

EuropeCommunity serverBeta

Ask EUR-Lex a question

Your question is answered first thing in your new workspace, with EUR-Lex already connected. Free account, about a minute.

Free plan included. No API key needed.

About EUR-Lex (EU law and case law)

Search the CELLAR corpus behind EUR-Lex by document type, date, EuroVoc subject and institution; resolve CELEX numbers and ELI citations; fetch metadata and full text of regulations, directives and decisions; search CJEU and General Court judgments and Advocate General opinions; traverse what an act amends, repeals or is based on; and run read-only SPARQL for anything the curated tools miss. Every answer carries a CELEX identifier.

Questions you can ask EUR-Lex

Type them into Kahubi’s chat once EUR-Lex is connected.

“Which EU acts amend the GDPR, and which Court of Justice judgments interpret Article 17?”

What comes back: CELEX numbers for each act and judgment, with dates and the amendment relationship.

“Summarise the obligations for providers of high-risk AI systems in the AI Act, citing articles.”

What comes back: The relevant articles of the act with its CELEX and ELI identifiers.

EUR-Lex MCP tools

The 7 tools the EUR-Lex server offers to Kahubi. The assistant picks the right one for each question.

  • eurlex_lookup_celex

    Resolve an EU legal citation - a CELEX number, ELI URI, ECLI, an OJ citation naming its act type and year (e.g.

  • eurlex_browse_subjects

    Search the EuroVoc thesaurus, resolving a keyword into concept URIs usable in the eurovoc_concept subject filter of eurlex_search_documents.

  • eurlex_search_documents

    Search EU legislation, treaties, and preparatory acts across the CELLAR corpus by document type, date range, EuroVoc subject, author institution, and in-force status.

  • eurlex_get_cases

    Search CJEU and General Court case law - judgments, orders, and Advocate General opinions and views - by case number, court, case type, keyword, and date range.

  • eurlex_get_document

    Fetch the metadata and full text of an EU act or case-law record by CELEX number, ELI URI, or work URI.

  • eurlex_get_relations

    Traverse the one-hop CDM relationship graph of an EU act: what it amends or is amended by, what it repeals or is repealed by (explicit and implicit), its consolidated versions,...

  • eurlex_query_sparql

    Run a raw, read-only SPARQL SELECT against the CELLAR Virtuoso endpoint - an escape hatch for CDM ontology traversals the curated tools do not cover.

Using EUR-Lex in Kahubi

  • Community server. An open-source server maintained by the MCP community. Kahubi tests it with live queries before listing it and health-checks it regularly.
  • Beta. The server works, but answers can be slower and its tools may still change.
  • Cited, checkable answers. Results are treated as retrieved material and cited with the source’s own identifiers, so you can open every record the answer relied on.
  • Your files stay private. Only the search the assistant writes for your question is sent to EUR-Lex.

More law & politics sources

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