truenas-mcp

MCP server that exposes TrueNAS SCALE management capabilities to AI assistants like Claude.

Connects to TrueNAS SCALE (Goldeye+) via the WebSocket JSON-RPC API and exposes storage, sharing, system, and app management as MCP tools over stdio.

Requirements

• Go 1.26+
• TrueNAS SCALE Goldeye (25.10) or later
• A TrueNAS API key (create in TrueNAS UI → Settings → API Keys)

Build

make

Usage

# with flags
truenas-mcp serve --host truenas.local --api-key YOUR_API_KEY

# with environment variables
export TRUENAS_HOST=truenas.local
export TRUENAS_API_KEY=YOUR_API_KEY
truenas-mcp serve

# read-only mode — only query tools, no create/delete/update operations
truenas-mcp serve --host truenas.local --api-key YOUR_API_KEY --read-only

# read-only mode via environment variable
TRUENAS_READ_ONLY=1 truenas-mcp serve

Read-Only Mode

Pass --read-only (or set TRUENAS_READ_ONLY to any non-empty value) to restrict the MCP server to read-only tools only. When enabled, tools that create, delete, or modify resources are not registered — AI clients cannot see or invoke them.

This is useful when you want AI assistants to query your NAS without any risk of accidental changes.

MCP Configuration

Add to your Claude Code MCP settings (~/.claude/settings.json):

{
  "mcpServers": {
    "truenas": {
      "command": "/path/to/truenas-mcp",
      "args": ["serve", "--host", "truenas.local", "--api-key", "YOUR_API_KEY"]
    }
  }
}

For read-only mode:

{
  "mcpServers": {
    "truenas": {
      "command": "/path/to/truenas-mcp",
      "args": ["serve", "--host", "truenas.local", "--api-key", "YOUR_API_KEY", "--read-only"]
    }
  }
}

Available Tools

Tools marked with * are excluded in --read-only mode.

| Tool | Description | |------|-------------| | truenas_system_info | System hostname, version, uptime, platform | | truenas_disk_list | Physical disks with health status | | truenas_network_list | Network interfaces and IPs | | truenas_pool_list | ZFS pools with status and health | | truenas_pool_get | Detailed pool info including topology | | truenas_dataset_list | Datasets with usage and compression | | truenas_dataset_get | Full dataset properties | | truenas_dataset_create | Create a new dataset * | | truenas_dataset_delete | Delete a dataset * | | truenas_snapshot_list | Snapshots for a dataset | | truenas_snapshot_get | Snapshot details | | truenas_snapshot_create | Create a snapshot * | | truenas_snapshot_delete | Delete a snapshot * | | truenas_smb_list | SMB shares | | truenas_smb_create | Create an SMB share * | | truenas_smb_delete | Delete an SMB share * | | truenas_nfs_list | NFS exports | | truenas_nfs_create | Create an NFS export * | | truenas_nfs_delete | Delete an NFS export * | | truenas_alert_list | Active alerts (filterable by level) | | truenas_alert_dismiss | Dismiss an alert * | | truenas_app_list | Installed apps with status | | truenas_app_get | App details | | truenas_app_start | Start an app * | | truenas_app_stop | Stop an app * | | truenas_app_restart | Restart an app * |