HomeJavaDatapacksDetect AFK Players
Detect AFK Players
DatapacksJava

Detect AFK Players

by clo4 · on Modrinth

AFK/idle detection that's extremely performant · Players go AFK after 3 minutes (configurable) without moving their mouse · Extend with plenty of add-ons!

Which build do you need?

This mod ships a separate file for every mod loader and every version of the game. Pick both, then download — the wrong build installs fine and then does nothing in the game.

Mod loader

Minecraft version

⬇ Download for 1.21.1–1.21.8 · Data pack⬇ Download for 1.21.1–1.21.8 · Fabric⬇ Download for 1.21.1–1.21.8 · Forge⬇ Download for 1.21.1–1.21.8 · NeoForge⬇ Download for 1.21.1–1.21.8 · Quilt
I don't know my version or loader
Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.
No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.

Detect AFK Players

Detects player inactivity based on head rotation - simple, accurate, and fast. Intended as a dependency for datapacks and server operators.

This doesn't do much without add-ons (better performance), so you'll probably want to download one of those too.

Add-ons

Core Functionality

To configure how long it takes to become AFK, use the command below. By default, this is set to 3600 (which is 3 minutes).

/scoreboard players set .threshold afk.settings NUMBER_OF_TICKS

To enable players using /trigger afk, use the following command. No players are allowed to become AFK manually unless enabled by an admin.

/scoreboard players enable PLAYER afk

Performance

Common AFK detection methods check X/Y/Z, inventory changes, and block interactions - often on every tick. Instead, this data pack does a single head rotation NBT check per player every 1.5 seconds, resulting in a significantly less computation as compared to alternatives, sometimes by up to two orders of magnitude.

The head rotation method also eliminates false triggers from entity interactions (players attacking, explosions, etc) and anti-AFK automations such as water streams.

API

Two function tags are provided:

Additional documentation is provided on GitHub, such as all the stable scoreboard objectives and how to use them.

Example implementation:

kick-afk-players/data/afk/tags/functions/away.json
{ "values": ["afk_kick:kick"] }
kick-afk-players/data/afk_kick/functions/kick.mcfunction
kick @s AFK
Quick facts

Install steps are the general flow for this file type — see the MC Java Mods guides for the full walkthrough.

Verified by MCModsHub

These come from our own check of the pack file, not from the source page.

Explore more