MCP Saos vs Openlex MCP

In-depth architectural comparison of the MCP Saos and Openlex MCP 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.

Which MCP Server Should You Choose?

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.

Explore MCP Saos Details

Choose Openlex MCP when:

• You need dedicated capabilities in the Legal domain.
• You prefer remote streaming HTTP/SSE transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).
• Primary tools included: openlex__zhlaw_search_laws, openlex__zhlaw_get_law, openlex__zhlaw_list_laws.

Explore Openlex MCP Details

Feature & Specification Comparison

Specification	MCP Saos Legal	Openlex MCP Legal
Summary	MCP server for Polish court judgments via the SAOS API with verifiable citations.	Canton Zurich legislation via ZH-Lex with full-text search and article extraction
Category & Scope	Legal	Legal
Quality signal

Tools & Capabilities Breakdown

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).

{
  "mcpServers": {
    "mcp-saos": {
      "command": "npx",
      "args": [
        "-y",
        "@matematicsolutions/mcp-saos"
      ]
    }
  }
}

{
  "mcpServers": {
    "openlex-mcp": {
      "url": "https://your-app.onrender.com/sse"
    }
  }
}

Related MCP Server Comparisons