Side-by-Side Model Context Protocol Comparison
Eur Lex MCP Server vs MCP Saos
In-depth architectural comparison of the Eur Lex MCP Server and MCP Saos MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.
At a Glance & Executive Verdict
Eur Lex MCP Server
Legal · Local stdio
Quality: 55/100 (Good) | Auth: No auth required
MCP Saos
Legal · Local stdio
Quality: 55/100 (Good) | Auth: No auth required
Verdict Summary: Choose Eur Lex MCP Server if you need specialized Legal tools running via a local process. Choose MCP Saos if your workspace requires Legal integration with local subprocess execution. Both servers can be configured concurrently in your client's
mcpServers manifest.Which MCP Server Should You Choose?
Choose Eur Lex MCP Server when:
- You need dedicated capabilities in the Legal domain.
- You prefer local stdio subprocess transport architecture.
- Your security boundary fits: No auth required (Free / Open Source).
- Primary tools included: eurlex_search_documents, eurlex_get_document, eurlex_lookup_celex.
Choose MCP Saos when:
- You need dedicated capabilities in the Legal domain.
- You prefer local stdio subprocess transport architecture.
- Your security boundary fits: No auth required (Free / Open Source).
- Primary tools included: search, get_judgment, search_by_case.
Feature & Specification Comparison
Tools & Capabilities Breakdown
Eur Lex MCP Server Tools (7)
eurlex_search_documents
Search EU legislation, treaties, and preparatory acts across the CELLAR corpus. Filters by document category, date range, EuroVoc concept, author institution, and in-force status; consolidated texts can be folded in through the selected basic-act family.
eurlex_get_document
Fetch structured metadata and full text (HTML, Markdown, or Formex4 XML) for a work by CELEX number, ELI URI, or CELLAR work URI.
eurlex_lookup_celex
Resolve an EU legal citation — a CELEX number or an ELI URI — to the canonical CELLAR work.
eurlex_get_cases
Search CJEU and General Court case law — judgments, orders, and Advocate General opinions — by case number, party name, subject, or date range.
eurlex_get_relations
Traverse the CELLAR relationship graph: amendment chain, consolidated versions, legal basis, citation network, and national transposition measures.
Ready-to-Paste Client Configurations
Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).
Eur Lex MCP Server Configuration
MCP Saos Configuration