ModsJava
Monbarrier Invisible Boundary Mod (1.21.1) – Contain Your Pokemon Without Ugly
Java mod listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.
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Monbarrier Invisible Boundary Mod extends Cobblemon with invisible barrier blocks that keep your Pokémon inside specific areas. These special fence blocks have no collision box for players, so you can walk right through them while keeping your party and wild creatures safely contained. They stay completely invisible until you hold a specific tool, making your pastures look natural and open.
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Features:
- Invisible Boundaries: Pokémon cannot pass through these blocks while players walk through freely.
- Blocks remain completely invisible and intangible unless you hold the boundary item or detector.
- The detector tool lets you switch barriers on or off with a simple right-click.
- Disabled barriers glow red so you can quickly spot open gates.
- Adds custom pressure plates that trigger specifically for players or Pokémon.
How to Use:
- Craft the fence blocks and place them around your pasture or base perimeter.
- Hold the fence detector tool in your main hand to reveal where invisible barriers are placed.
- Right-click a fence block with the detector to turn it red and let Pokémon pass through.
- Right-click the block again to activate the barrier and block Pokémon movement.
Screenshots:




Monbarrier Invisible Boundary Mod Download Links
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: In MC Java Mods, or directly above on this page.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
File checked by MCModsHub
- Downloads as 505580.mcaddon
- Download size: 160 KB
- Download link checked 25 Sept 2026 — working
- Mirrored on our own servers — the download does not depend on the original host
These come from our own check of the pack file, not from the source page.