LexAPI

Created By

Lex-APIa month ago

Query EUR-Lex and EU case law from Claude, Cursor, and other MCP-enabled tools. 10 tools for structured search, CELEX/URL document fetch, recent Official Journal, citation graph, and semantic search over case law + legislation.

# legal

# eu-law

Overview Content Tools Comments

Content

LexAPI MCP

Model Context Protocol server for LexAPI — query EUR-Lex, EU case law, and the citation graph from Claude, Cursor, and other MCP-enabled AI tools.

Ask your assistant: "summarize Article 17 of the GDPR" or "which regulations amend Directive 95/46/EC?" and the model calls LexAPI directly.

Tools

Tool	What it does
`lex_search`	Structured EUR-Lex search (text, dates, document type, author, language).
`lex_get_document`	Full parsed document by CELEX — metadata + articles, sections, tables, annexes.
`lex_get_metadata`	Metadata only (faster than full content).
`lex_get_document_by_url`	Fetch by EUR-Lex URL (pasted from a browser).
`lex_recent_documents`	Recent Official Journal publications (default 7 days).
`lex_cited_by`	Documents citing this CELEX (inbound, typed edges).
`lex_cites`	Documents this CELEX cites (outbound, typed edges).
`lex_citation_network`	Both directions in one call.
`lex_semantic_case_law`	Embedding search over EU case law (paid plans).
`lex_semantic_legislation`	Embedding search over EU legislation.

Install

Get a LexAPI API key at lex-api.com/dashboard (50 calls/day on the FREE tier; semantic tools require a paid plan).

Claude Desktop

Add to ~/Library/Application Support/Claude/claude_desktop_config.json:

{
  "mcpServers": {
    "lexapi": {
      "command": "npx",
      "args": ["-y", "@lexapi/mcp"],
      "env": { "LEXAPI_API_KEY": "lex_..." }
    }
  }
}

Claude Code

claude mcp add lexapi --env LEXAPI_API_KEY=lex_... -- npx -y @lexapi/mcp

Cursor / other MCP clients

Any client that supports stdio MCP servers can run npx -y @lexapi/mcp with LEXAPI_API_KEY in the environment.

Configuration

Env var	Default	Purpose
`LEXAPI_API_KEY`	(required)	Your API key. Get one at lex-api.com/dashboard.
`LEXAPI_BASE_URL`	`https://lex-api.com/api/v1`	Override for self-hosted or staging.

Server Config

{
  "mcpServers": {
    "lexapi": {
      "command": "npx",
      "args": [
        "-y",
        "@lexapi/mcp"
      ],
      "env": {
        "LEXAPI_API_KEY": "<YOUR_LEXAPI_API_KEY>"
      }
    }
  }
}

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