Librenms

LibreNMS Skill

Monitor network infrastructure via LibreNMS REST API. Read-only monitoring skill for device status, health sensors, port statistics, and alerts.

Configuration

Create ~/.openclaw/credentials/librenms/config.json:

{
  "url": "https://librenms.example.com",
  "api_token": "your-api-token-here"
}

Or set environment variables:

• LIBRENMS_URL — Base URL of your LibreNMS instance
• LIBRENMS_TOKEN — API authentication token

Commands

Quick Overview

librenms summary

Dashboard view showing total devices, how many are up/down, and active alert count. Use this first to get a quick status overview.

Device Management

librenms devices           # List all devices with status, IP, OS, uptime
librenms down             # Show ONLY devices that are down (critical for alerting)
librenms device <hostname> # Detailed info: hardware, serial, location, OS version

Health Monitoring

librenms health <hostname> # Temperature, CPU, memory, disk usage sensors
librenms ports <hostname>  # Network interfaces with traffic stats

Alerts

librenms alerts           # Show active/unresolved alerts with severity and timestamps

Usage Patterns

Daily health check:

librenms summary && librenms down && librenms alerts

Investigate specific device:

librenms device switch-core-01
librenms health switch-core-01
librenms ports switch-core-01

Quick down-device triage:

librenms down | grep -v "UP"

Important Notes

• All operations are read-only — no device modifications possible
• The script accepts self-signed certificates (-sk flag for curl)
• Status indicators: ● green = up, ● red = down
• Uptime is formatted as human-readable (days/hours instead of seconds)
• Traffic stats are formatted as KB/MB/GB per second

Heartbeat Integration

Check infrastructure health periodically:

# In heartbeat script
if librenms down | grep -q "Devices Down"; then
    # Alert on down devices
    librenms down
fi

# Check for active alerts
if librenms alerts | grep -q "Active Alerts"; then
    librenms alerts
fi

Dependencies

• curl — API calls
• jq — JSON parsing
• bc — Numeric formatting (optional, for bytes conversion)

API Coverage

Wrapped endpoints:

• /api/v0/devices — All devices
• /api/v0/devices/{hostname} — Single device details
• /api/v0/devices/{hostname}/health — Health sensors
• /api/v0/devices/{hostname}/ports — Network ports
• /api/v0/alerts?state=1 — Unresolved alerts

Full API docs: https://docs.librenms.org/API/

Troubleshooting

"Config file not found" Create ~/.openclaw/credentials/librenms/config.json or set env vars.

"API returned HTTP 401" Check your API token. Generate a new one in LibreNMS under Settings → API.

"Failed to connect" Verify the URL is correct and the LibreNMS instance is reachable. Check firewall rules.

Self-signed cert warnings The script uses -sk to ignore cert validation (common in LibreNMS setups). If you need strict validation, edit the script and remove the -k flag.