Nexus running

MCP server for Home Assistant · 100 tools · health check

MCP URL (with token)

http://mcp.marzyl.eu:7123/mcp?token=3jxPyKOH7zX2lkK-e2sIIYvi0KJ9Ek0Yp-6FOA4eS58

This URL includes your API key — paste it directly into any MCP client.

API Key

3jxPyKOH7zX2lkK-e2sIIYvi0KJ9Ek0Yp-6FOA4eS58

Stored in /config/.nexus_api_key.

⚡ Claude Code CLI — one command

No config files needed. Just run this once in your terminal.

claude mcp add nexus --transport http "http://mcp.marzyl.eu:7123/mcp?token=3jxPyKOH7zX2lkK-e2sIIYvi0KJ9Ek0Yp-6FOA4eS58" --scope user

OpenAI Codex CLI

Run once in terminal:

codex mcp add nexus --url "http://mcp.marzyl.eu:7123/mcp?token=3jxPyKOH7zX2lkK-e2sIIYvi0KJ9Ek0Yp-6FOA4eS58"

Gemini CLI

Run once in terminal:

gemini mcp add nexus --url "http://mcp.marzyl.eu:7123/mcp?token=3jxPyKOH7zX2lkK-e2sIIYvi0KJ9Ek0Yp-6FOA4eS58"

Claude Desktop

Paste into %APPDATA%/Claude/claude_desktop_config.json (Win) or ~/Library/Application Support/Claude/claude_desktop_config.json (Mac):

{
  "mcpServers": {
    "nexus": {
      "command": "python",
      "args": ["server.py"],
      "cwd": "/app",
      "env": {
        "HA_URL": "http://supervisor/core",
        "NEXUS_API_KEY": "3jxPyKOH7zX2lkK-e2sIIYvi0KJ9Ek0Yp-6FOA4eS58"
      }
    }
  }
}

VS Code

Create .vscode/mcp.json:

{
  "servers": {
    "nexus": {
      "type": "http",
      "url": "http://mcp.marzyl.eu:7123/mcp?token=3jxPyKOH7zX2lkK-e2sIIYvi0KJ9Ek0Yp-6FOA4eS58"
    }
  }
}

Cursor

Paste into ~/.cursor/mcp.json:

{
  "mcpServers": {
    "nexus": {
      "url": "http://mcp.marzyl.eu:7123/mcp?token=3jxPyKOH7zX2lkK-e2sIIYvi0KJ9Ek0Yp-6FOA4eS58",
      "type": "http"
    }
  }
}

Windsurf

Paste into ~/.codeium/windsurf/mcp_config.json:

{
  "mcpServers": {
    "nexus": {
      "url": "http://mcp.marzyl.eu:7123/mcp?token=3jxPyKOH7zX2lkK-e2sIIYvi0KJ9Ek0Yp-6FOA4eS58",
      "type": "http"
    }
  }
}

Home Assistant

Connected to: http://supervisor/core

Never share your API key.