飞牛fnOS for Home Assistant (Marketplace integration)

Installs: 125 sharing analytics
GitHub stars: 14
Connection: Works locally
Upkeep: Updated in the last 6 months
Version: v0.4.1, October 21, 2026
Kind: Marketplace integration
Needs: Needs the Marketplace (HACS on 2026.10 and older)
Domain: fnos
Source: github.com/Timandes/fnos-home-assistant
Issues: Report an issue

Independent directory, made by the developer of Vulpo. Not affiliated with Home Assistant or the Open Home Foundation.

About

飞牛fnOS is a Marketplace integration that connects Home Assistant to fnOS over the local network. It adds sensors for memory and disk usage, CPU temperature, load average, CPU utilization and device status, plus binary sensors for security status and disk wear warnings. Sign-in uses an fnOS administrator account, and a six-digit two-factor code is requested when the account has one enabled. The integration can ask fnOS to trust the Home Assistant device so later code prompts are fewer, and it offers a reauthentication step when the saved login expires. Polling intervals are adjustable separately for system data and for disk data, and shorter disk intervals may keep hard drives from entering standby. More than one fnOS system can be added under the same integration.

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Supports

Works locally Talks to your devices on your own network. No vendor cloud in between.
From the Marketplace Installed through the Marketplace, formerly HACS.
Actively maintained Its author released or pushed a change in the last six months.

Provides

Sensors

Setting it up

Install it from the Marketplace and restart Home Assistant, then add it under Settings, Devices and services.

Connect

Host:PortE.G: 192.168.31.111:5666
User Name
Password

Also asked when signing in again.

Enter two-factor code

Code6-digit verification code

After setup

System polling interval (seconds)CPU, memory, network, uptime. Recommended: 10-300s (default: 30s)
Disk polling interval (seconds)Storage volumes, S.M.A.R.T. health. Recommended: 300-86400s (default: 3600s). Lower values may prevent HDD standby.

Texts from the code of Timandes/fnos-home-assistant.

Entities

Binary sensorsBelow min remaining life, Exceeded max bad sectors, Security status
SensorsMemory Usage, Disk Usage, CPU Temperature, CPU load average (15 min), CPU load average (1 min), CPU load average (5 min), CPU utilization (other), CPU utilization (system), CPU utilization (total), CPU utilization (user), Device size, Status, and 21 more