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Blue ICE Carpet Extension

by SALTWOOD

Blue ICE Carpet Extension adds Fabric features that sit on top of Carpet, covering player entity synchronization, bot permissions and the anvil level cap.

FabricServer-side onlyMIT LicenseOpen source1.21.1

What it does

Blue ICE Carpet Extension is a server-side extension of the Carpet mod, and Carpet is required. Some of its functions are ported from other extension mods. The extension only runs on the server, so players join without installing anything.

Server owners can synchronize player entities, limit that synchronization to bot players or to operator bot players, and let operators synchronize their own bot entity. A separate option removes the anvil level cap. Each feature can be toggled with a Carpet command. The mod is compatible with the PCA Synchronization Protocol Compatibility option and with Yet Another Extension Carpet Mod.

The project is open source under the MIT License. Files are published for Fabric only, for Minecraft 1.21.1, with version 1.2.1 as the latest file, released on 2026-01-21. The first release came out on 2026-01-04. Source code and an issue tracker are public.

Key features

  1. Player entity synchronization

    Player entities can be synchronized between players on the server, which is controlled by a permission setting.

  2. Bot-only synchronization

    Synchronization can be restricted so only bot player entities are affected, or only operator bot entities.

  3. Operator self synchronization

    Operators can synchronize their own bot player entity, separately from the other synchronization options.

  4. Anvil level cap removal

    An option removes the level limit that normally stops anvils from combining very expensive enchantments.

Compatibility

Latest build for each game version and loader.

1.21.11.2.1
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Requirements

Dependencies declared by the latest file for each loader.

Required 1

CarpetTake full control over your vanilla game
Required

How it compares

Full comparison

Lanitium is a Fabric server mod for 1.20.5 – 1.21.4, open source under the Apache License 2.0. Carpet Ice Addition is a Fabric server mod for 1.21 – 26.3 under the GNU Lesser General Public License v3.0 or later. OptCarpetAddition is a Fabric server mod for 1.17 – 1.21.10 released under CC0 1.0 Universal. Blue ICE Carpet Extension targets 1.21.1 only, under the MIT License.

ModLoadersGame versionsEnvironmentUpdated
Blue ICE Carpet ExtensionFabric1.21.1Server-side only2026-01-21
LanitiumFabric1.20.5 – 1.21.4Server-side only2025-05-11
Carpet Ice AdditionFabric1.21 – 26.3Server-side only2026-10-15
OptCarpetAdditionFabric1.17 – 1.21.10Server-side only2026-02-12

Questions

Does Blue ICE Carpet Extension need Carpet installed?

Yes. Carpet is a required dependency, and the extension adds its features on top of it.

Does Blue ICE Carpet Extension have to be installed on the client?

No. Server owners install it, and players connect with no copy of their own.

Which Minecraft versions does Blue ICE Carpet Extension support?

Only 1.21.1. The latest Fabric file is 1.2.1 for 1.21.1, released on 2026-01-21.

More from SALTWOOD

All projects
Mekanism: Water Provider1.21.1

What the author says

All features of this mod can be toggled via the /carpet command
SALTWOOD, on the Modrinth page

Official listing

Owner
SALTWOOD
Published
2026-01-04
Updated on Modrinth
2026-01-21
Facts verified
2026-10-15
Open on ModrinthCompare