Nexus Legal MCP Server: Install & Setup

Install Nexus Legal in Claude Code

Remote URL

Claude Code

claude mcp add --transport http nexus-legal https://legal.nexusquantum.legal/api/mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "nexus-legal": {
      "url": "https://legal.nexusquantum.legal/api/mcp"
    }
  }
}

npm

Claude Code

claude mcp add nexus-legal -e NEXUS_API_KEY=... -- npx -y @nexus-legal/mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "nexus-legal": {
      "command": "npx",
      "args": [
        "-y",
        "@nexus-legal/mcp"
      ],
      "env": {
        "NEXUS_API_KEY": "..."
      }
    }
  }
}

Replace each ... with your own value.

Frequently asked questions

What does the Nexus Legal MCP server do?

Legal analysis (ISO 31000) for Spanish, Latin American and European law: drafting, audits, case law, tax doctrine and cross-border comparison.

Is the Nexus Legal MCP server free?

The server is free, but you will likely need an account. The server itself is free, but it connects to a service that needs an account or API key, which may have paid tiers. Check the provider for current pricing.

Does Nexus Legal run locally or remotely?

Local + Remote. Can run locally or be used as a hosted remote server.

How do I add Nexus Legal to Claude Code?

Run: claude mcp add --transport http nexus-legal https://legal.nexusquantum.legal/api/mcp

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