io.github.cyanheads/eur-lex-mcp-server
Search EU legislation, CJEU case law, and treaties; traverse CELLAR graph; browse EuroVoc concepts.
Using io.github.cyanheads/eur-lex-mcp-server in Claude, Cursor, Gemini CLI, Cline, or Zed?
MCP tool contracts can change remotely with no version bump. The mcpindex gate pins each contract and HOLDs the call when it drifts-before your agent acts. Zero credentials. This is not the package install for this server itself (use Install this server for that).
Rewrites your MCP host config so each server launches behind the gate. Inspect first: curl -fsSL https://mcpindex.ai/install.sh | less
uv tool install mcpindex-gate && mcpindex-config-wireSemantic screen found no manipulation pattern in the description. Conformance probe not yet run.
mcpindex.integrity.descriptionpassINFOevidence“No malicious instructions found”via static_description
- - Semantic screen only - the deterministic conformance probe has not run on this server
- - Confidence is reported but not yet calibrated (v1)
- - Screen reads the tool description, not the live behavior
- - advisory
- - registry description only no input schema
- - screen model 8b
Semantic screen: an LLM judge reads the tool description for hidden instructions (status PARTIAL). A pass means the description is not lying, not that the tool is safe: a high-capability tool with an honest description still warrants caution. The deterministic conformance probe has not been run on this server yet, so the screen here is semantic-only. Posture: advisory. Confidences are reported but not yet calibrated (calibrated=false at v1). Full verdict history is not shown on this page.
Own this server? Screen its description →
That verdict was true at screening time (snapshot 2026-07-21).
Contracts can change after screening, with no version bump. The gate pins io.github.cyanheads/eur-lex-mcp-server’s tool contracts on first sight and holds any silent change before your agent acts - the check that keeps being true on Tuesday.
A live verdict badge for your README or listing. It reflects the current screen, links back here, and updates when the verdict does.
[](https://mcpindex.ai/server/io-github-cyanheads-eur-lex-mcp-server)<a href="https://mcpindex.ai/server/io-github-cyanheads-eur-lex-mcp-server"><img src="https://mcpindex.ai/api/v1/badge/io-github-cyanheads-eur-lex-mcp-server" alt="mcpindex verdict" height="20" /></a>CELLAR_SPARQL_ENDPOINTCELLAR SPARQL endpoint URL override (e.g., for a local Virtuoso mirror).
EURLEX_CONTENT_BASE_URLBase URL of the EU Publications Office CELLAR content-negotiation resolver that serves act full text; override e.g. for a local mirror.
SPARQL_QUERY_TIMEOUT_MSClient-side timeout for SPARQL requests in milliseconds.
MAX_SPARQL_RESULTSEnforced ceiling on LIMIT in all generated SPARQL queries.
MCP_LOG_LEVELSets the minimum log level for output (e.g., 'debug', 'info', 'warn').
MCP_HTTP_HOSTThe hostname for the HTTP server.
MCP_HTTP_PORTThe port to run the HTTP server on.
MCP_HTTP_ENDPOINT_PATHThe endpoint path for the MCP server.
MCP_PUBLIC_URLPublic origin for deployments behind a TLS-terminating reverse proxy (e.g. https://mcp.example.com).
MCP_AUTH_MODEAuthentication mode to use: 'none', 'jwt', or 'oauth'.
MCP_LOG_LEVELSets the minimum log level for output (e.g., 'debug', 'info', 'warn').
CELLAR_SPARQL_ENDPOINTCELLAR SPARQL endpoint URL override (e.g., for a local Virtuoso mirror).
EURLEX_CONTENT_BASE_URLBase URL of the EU Publications Office CELLAR content-negotiation resolver that serves act full text; override e.g. for a local mirror.
SPARQL_QUERY_TIMEOUT_MSClient-side timeout for SPARQL requests in milliseconds.
MAX_SPARQL_RESULTSEnforced ceiling on LIMIT in all generated SPARQL queries.
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