LexAPI MCP Server

by lex-apiio.github.Lex-API/lexapi-mcpv0.1.3

EU legal research over EUR-Lex: structured search, document fetch by CELEX number, recent Official Journal publications, citation graphs and semantic search.

3Node.jsstdioofficial registry

context tax

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security

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freshness

Maintained3mo ago

Install LexAPI MCP server

claude mcp add lexapi -e LEXAPI_API_KEY='<lexapi-api-key>' -- npx -y @lexapi/mcp

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

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).

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

Settings → Developer → Edit Config (claude_desktop_config.json), then restart.

{
  "servers": {
    "lexapi": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@lexapi/mcp"
      ],
      "env": {
        "LEXAPI_API_KEY": "<lexapi-api-key>"
      }
    }
  }
}

Add to .vscode/mcp.json in your workspace.

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

Add to ~/.codeium/windsurf/mcp_config.json.

Configuration

Variable	Required	Secret	Description
LEXAPI_API_KEY	yes	yes	LexAPI API key. Get one at https://lex-api.com/dashboard (FREE tier available; semantic tools require a paid plan).
LEXAPI_BASE_URL	—	—	Override the LexAPI base URL. Defaults to https://lex-api.com/api/v1.

Freshness

Maintained — last maintenance signal 3mo ago. The newest of the signals below sets the band.

Last commit (default branch)
2026-07-21 · 3mo ago · GitHub
Latest release
no data · GitHub
Package published
no data · npm/PyPI
Registry entry updated
2026-07-01 · 3mo ago · official registry · v0.1.3

FAQ

›How do I install the LexAPI MCP server in Claude Code?

Run: claude mcp add lexapi -e LEXAPI_API_KEY='<lexapi-api-key>' -- npx -y @lexapi/mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does LexAPI require an API key?

Yes. It expects LEXAPI_API_KEY, of which 1 is a secret.

›Can I use LexAPI as a remote (hosted) MCP server?

No hosted endpoint is published; it runs locally over stdio.

›Is LexAPI in the official MCP registry?

Yes, as io.github.Lex-API/lexapi-mcp.