eur-lex-mcp-server

An MCP server that enables agents to search EU legislation, CJEU case law, and treaties. It allows fetching full text, resolving citations, traversing the CELLAR relationship graph for amendments and repeals, and browsing the EuroVoc subject thesaurus. It supports STDIO or Streamable HTTP protocols.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

Community listingLocal stdioSource reviewed; not executedPublished by cyanheads

Vendor documentation

What you can do with it

Search EU legislation and treaties by type, date, or institution
Fetch full text and metadata for legal acts or case law
Traverse the CELLAR relationship graph to find amendments and citations
Browse the EuroVoc thesaurus to resolve subject terms

Source and maintenance

Community listingRegistry 0.20.0

mcp-registry: io.github.cyanheads/eur-lex-mcp-server@0.20.0 Source repository

Maintenance checked: Oct 31, 2026, 10:27 PM UTC

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

@cyanheads/eur-lex-mcp-server 0.20.0

npmnpx

@cyanheads/eur-lex-mcp-server package definition

{
  "version": "0.20.0",
  "transport": "stdio",
  "identifier": "@cyanheads/eur-lex-mcp-server",
  "runtimeHint": "npx",
  "registryType": "npm",
  "registryBaseUrl": "https://registry.npmjs.org",
  "environmentVariables": [
    {
      "name": "CELLAR_SPARQL_ENDPOINT",
      "format": "string",
      "default": "http://publications.europa.eu/webapi/rdf/sparql",
      "description": "CELLAR SPARQL endpoint URL override (e.g., for a local Virtuoso mirror)."
    },
    {
      "name": "EURLEX_CONTENT_BASE_URL",
      "format": "string",
      "default": "http://publications.europa.eu",
      "description": "Base URL of the EU Publications Office CELLAR content-negotiation resolver that serves act full text; override e.g. for a local mirror."
    },
    {
      "name": "SPARQL_QUERY_TIMEOUT_MS",
      "format": "string",
      "default": "55000",
      "description": "Client-side timeout for SPARQL requests in milliseconds."
    },
    {
      "name": "MAX_SPARQL_RESULTS",
      "format": "string",
      "default": "100",
      "description": "Enforced ceiling on LIMIT in all generated SPARQL queries."
    },
    {
      "name": "MCP_LOG_LEVEL",
      "format": "string",
      "default": "info",
      "description": "Sets the minimum log level for output (e.g., 'debug', 'info', 'warn')."
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.

Cursor configuration

{
  "mcpServers": {
    "eur-lex-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/eur-lex-mcp-server@0.20.0"
      ],
      "env": {
        "CELLAR_SPARQL_ENDPOINT": "<YOUR_CELLAR_SPARQL_ENDPOINT>",
        "EURLEX_CONTENT_BASE_URL": "<YOUR_EURLEX_CONTENT_BASE_URL>",
        "SPARQL_QUERY_TIMEOUT_MS": "<YOUR_SPARQL_QUERY_TIMEOUT_MS>",
        "MAX_SPARQL_RESULTS": "<YOUR_MAX_SPARQL_RESULTS>",
        "MCP_LOG_LEVEL": "<YOUR_MCP_LOG_LEVEL>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.

Cline configuration

{
  "mcpServers": {
    "eur-lex-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/eur-lex-mcp-server@0.20.0"
      ],
      "env": {
        "CELLAR_SPARQL_ENDPOINT": "<YOUR_CELLAR_SPARQL_ENDPOINT>",
        "EURLEX_CONTENT_BASE_URL": "<YOUR_EURLEX_CONTENT_BASE_URL>",
        "SPARQL_QUERY_TIMEOUT_MS": "<YOUR_SPARQL_QUERY_TIMEOUT_MS>",
        "MAX_SPARQL_RESULTS": "<YOUR_MAX_SPARQL_RESULTS>",
        "MCP_LOG_LEVEL": "<YOUR_MCP_LOG_LEVEL>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.

VS Code configuration

{
  "servers": {
    "eur-lex-mcp-server": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/eur-lex-mcp-server@0.20.0"
      ],
      "env": {
        "CELLAR_SPARQL_ENDPOINT": "<YOUR_CELLAR_SPARQL_ENDPOINT>",
        "EURLEX_CONTENT_BASE_URL": "<YOUR_EURLEX_CONTENT_BASE_URL>",
        "SPARQL_QUERY_TIMEOUT_MS": "<YOUR_SPARQL_QUERY_TIMEOUT_MS>",
        "MAX_SPARQL_RESULTS": "<YOUR_MAX_SPARQL_RESULTS>",
        "MCP_LOG_LEVEL": "<YOUR_MCP_LOG_LEVEL>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.

Claude Desktop configuration

{
  "mcpServers": {
    "eur-lex-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/eur-lex-mcp-server@0.20.0"
      ],
      "env": {
        "CELLAR_SPARQL_ENDPOINT": "<YOUR_CELLAR_SPARQL_ENDPOINT>",
        "EURLEX_CONTENT_BASE_URL": "<YOUR_EURLEX_CONTENT_BASE_URL>",
        "SPARQL_QUERY_TIMEOUT_MS": "<YOUR_SPARQL_QUERY_TIMEOUT_MS>",
        "MAX_SPARQL_RESULTS": "<YOUR_MAX_SPARQL_RESULTS>",
        "MCP_LOG_LEVEL": "<YOUR_MCP_LOG_LEVEL>"
      }
    }
  }
}

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