Mutualzz Voice (client mod)

Hear and talk in Mutualzz voice from inside Minecraft.

This is a Fabric client mod for your PC. The server needs the official Mutualzz Bridge plugin, which connects to Mutualzz’s hosted hub.

Without this mod you can still /mzvoice join for presence in the Mutualzz app — you just won’t get in-game audio.

License & redistribution

Source is available for transparency and community contributions. That is not permission to redistribute builds.

You may:

Install official builds and use them with Mutualzz Bridge on a server linked to Mutualzz
Fork the repo and open pull requests — contributors get credit (see CONTRIBUTING)

You may not (without written permission from Mutualzz):

See LICENSE. Contact mutualzz.com for partnership rights.


Minecraft	26.1.x (same version as the server)
Loader	Fabric Loader 0.19.3+
Required mods	Fabric API and Amecs
Server	Official Mutualzz Bridge, your account linked, a voice room bound in Mutualzz

Install a Fabric profile for Minecraft 26.1.x (use the Fabric installer or a launcher that supports Fabric).
Download these jars (matching your Minecraft version):
- Fabric API — Modrinth
- Amecs — Modrinth
- Mutualzz Voice — official jar from the Mutualzz GitHub Release Mutualzz Minecraft v… (tag minecraft-v…; same release as the Bridge plugin — not third-party mirrors)
Put all three jars in your Minecraft mods folder.
- Prism / MultiMC / CurseForge: open the instance → Mods folder
- Vanilla launcher: .minecraft/mods
Launch Minecraft with the Fabric profile.
Join a server that has Mutualzz Bridge.
Link your account if you haven’t: /mzlink (follow the code in Mutualzz settings).
Join voice: /mzvoice join
Optional room name: /mzvoice join lobby (tab-complete shows rooms bound on that server).
Leave with /mzvoice leave.

When you’re connected, a green Mutualzz Voice label appears in the top-left of the screen.

Open the settings screen anytime with Ctrl+O (volume, mic, PTT, mute, per-user).

You can also use shortcuts (rebind under Options → Controls → Mutualzz Voice):

Key	Action
Ctrl+O	Voice settings
Ctrl+M	Mute mic
Ctrl+D	Deafen
Ctrl+H	Show / hide who’s talking
Ctrl+I	Switch voice activity ↔ push-to-talk
V (hold)	Talk in push-to-talk mode
Ctrl+= / Ctrl+-	Output volume up / down
Ctrl+Shift+= / Ctrl+Shift+-	Mic sensitivity up / down
Ctrl+[ / Ctrl+]	Select previous / next user
Ctrl+↑ / Ctrl+↓	That user’s volume
Ctrl+U	Mute that user locally

Settings are saved in config/mutualzz_voice.json.

No green HUD after /mzvoice join — Confirm Fabric API + Amecs are loaded, and the server has Mutualzz Bridge online.
Joined but can’t hear anyone — Check output volume in Ctrl+O, and that you’re not deafened (Ctrl+D).
Nobody can hear you — Unmute (Ctrl+M), raise mic sensitivity, or switch to push-to-talk and hold V.
Kicked / left and it keeps reconnecting — Update to the latest official mod; session ends cleanly when you’re removed from the channel.
Wrong Minecraft version — This mod only supports 26.1.x.