AutoJoinParty is a lightweight client-side Fabric mod for competitive PvP players. It automatically joins public parties and introduces real-time group coordination so your whole squad enters the same party at once.
Features
Instant Auto-Join — Automatically detects public party invitations in chat (e.g. (1/32) Player is hosting a public party!) and executes the join command immediately.
Friends & Group System — Add friends, see which server they are on in real-time, and create groups. When the group leader joins a party, all group members are pulled in automatically.
Leader / Member Logic — Group leaders have Auto Join enabled automatically. Members have it disabled by default and only get pulled in when the leader joins — preventing accidental party joins without the leader.
Toggle System — Press 6 at any time to enable or disable Auto Join. A confirmation message appears in chat.
Friends GUI — Press N to open the Friends & Group overlay with two tabs:
- Friends — See who is online, invite them to a group, or remove them.
- Requests — Accept or decline incoming friend requests; view sent requests.
No commands required — everything can be done by clicking in the GUI.
Supported Versions
| Version | Notes |
|---|---|
| 1.21.1 – 1.21.4 | Stable |
| 1.21.5 – 1.21.8 | Group auto-disable logic added |
| 1.21.9 – 1.21.11 | Last obfuscated era — main tested version |
| 26.1 / 26.1.1 / 26.1.2 | First deobfuscated versions |
| 26.2 | Chaos Cubed update |
This mod has been mainly tested on 1.21.11. Other versions may contain bugs or compatibility issues.
Installation
- Install Fabric Loader for your Minecraft version.
- Install Fabric API.
- Download the correct JAR for your version from this page.
- Place the JAR in your
.minecraft/modsfolder (or Lunar Client mods folder). - Launch Minecraft.
Controls
| Action | Default Keybind |
|---|---|
| Open Friends GUI | N |
| Toggle Auto Join | 6 |
Both keybinds can be changed in Options → Controls → AutoJoinParty.
Everything can be done by clicking in the Friends GUI. For players who prefer typing, the following client-side commands are also available:
/ajp accept <player>— Accept a group invite from a player/ajp decline <player>— Decline a group invite from a player/ajp invite <player>— Invite a player to your group/ajp kick <player>— Kick a player from your group/ajp leave <player>— Dissolve your group (if you are the leader) or leave the group. These commands have no effect on your perfomance
This is a client-side only mod — no server plugin required.
