Auto Crystal Bot

Auto Crystal Bot is a small client-side Fabric mod for Crystal PvP and Anchor PvP. It gives you two separate keybinds: one for crystals and one for anchors. Each key only does its own job, so both work even when End Crystals and Respawn Anchors are on your hotbar at the same time.

Features

Crystal Place (one key)

• Look at a block and hold the key
• If the block is not obsidian or bedrock, it places obsidian first
• Then it places an End Crystal on top and breaks it right away
• Looking at an existing crystal breaks it instantly

Anchor Place (another key)

• Look at a block and hold the key
• Places a Respawn Anchor, charges it with Glowstone, then explodes it using another hotbar slot
• Looking at an anchor that is already placed charges and explodes it

General

• Picks the right hotbar slot by itself (works with an offhand item too)
• Client-side only, so nothing has to be installed on the server
• Lightweight: only needs Fabric API, no HUD and no config screen

How to use

1. Put End Crystals and Obsidian in your hotbar for crystal mode.
2. Put Respawn Anchors and Glowstone in your hotbar for anchor mode.
3. Go to Options → Controls → Key Binds → Auto Crystal Bot and set:
   • Crystal Place (default: Home)
   • Anchor Place (default: End)
4. Look at a block and hold the key.

Tip: To use E for Crystal Place, first move the vanilla Inventory key to another button.

Requirements

• Minecraft 1.21.11
• Fabric Loader 0.18+
• Fabric API
• Java 21

Notes

Automatic placing counts as a macro on many PvP servers and can get you banned. Read the rules of your server before you use it. Use at your own risk; it works best in singleplayer, on your own server, or on servers that allow macros.