Loupe: free citation lookup vs DataJud (CNJ)

In-depth architectural comparison of the Loupe: free citation lookup and DataJud (CNJ) 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?

Feature & Specification Comparison

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": {
    "loupe-free-citation-lookup": {
      "command": "npx",
      "args": [
        "-y",
        "loupe-free-citation-lookup"
      ]
    }
  }
}

{
  "mcpServers": {
    "datajud-cnj": {
      "url": "https://api.mcp.ai/p_datajud"
    }
  }
}

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