pca-protocol
pca-protocol is a server-side Fabric utility that adds PCA protocol support to a server, forked from plusls-carpet-addition.
What it does
The mod supports the PCA protocol on a server and is built as a fork of plusls-carpet-addition. Its author kept the protocol feature and removed the other features that changed vanilla gameplay, so the mod focuses on one job. The original plusls-carpet-addition project stopped receiving updates in 2022, and a fork by Nyan-Work of the same mod stopped in 2024, so this fork is the one that tracks recent Minecraft releases.
Only the Fabric loader is required, and no extra dependencies are listed. Because the feature set is stripped down, the mod does not change vanilla game behavior beyond the protocol support. Players join without it, since only the server has to run the mod. The code is released under the GNU Lesser General Public License v3.0 only, and the project is open source with public source code and an issue tracker. Files cover 1.14.4 – 26.3 across 29 release versions, and the latest Fabric file is v0.3.15-mc26.3 for 26.3, published 2026-09-19.
Key features
PCA protocol support
The server gains support for the PCA protocol, which is the single feature this fork is built around.
Stripped feature set
Other features from the original plusls-carpet-addition are removed, so vanilla behavior is left alone.
Protocol-only scope
The mod does one job: it adds the protocol on the server and changes nothing else in how the game plays.
Fork of a stalled project
The mod continues the protocol work from a fork of plusls-carpet-addition after the original stopped receiving updates.
Compatibility
Latest build for each game version and loader.
26.x5 of 5 versions with builds
1.21.x12 of 12 versions with builds
1.20.x6 of 6 versions with builds
1.19.x1 of 1 version with builds
1.18.x1 of 1 version with builds
1.17.x1 of 1 version with builds
1.16.x1 of 1 version with builds
1.15.x1 of 1 version with builds
1.14.x1 of 1 version with builds
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
Carpet Blue Addition is a Fabric mod for 1.15.2 – 1.21.1 that can run on the client or the server, and it is open source under the MIT License. Carpet Masks is a Fabric mod for 26.2 that must run on both the client and the server, and it is also open source under the MIT License. pca-protocol is server-side only and is released under the GNU Lesser General Public License v3.0 only, so it covers a different version span and environment.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| pca-protocol | Fabric | 1.14.4 – 26.3 | Server-side only | 2026-09-19 |
| Carpet Blue Addition | Fabric | 1.15.2 – 1.21.1 | Client or server, optional | 2025-07-09 |
| Carpet Masks | Fabric | 26.2 | Client and server | 2026-08-14 |
Questions
Does pca-protocol need extra dependencies?
Does pca-protocol conflict with plusls-carpet-addition?
Do players need to install pca-protocol?
In the catalog
pca-protocol is one of 36,990 Utility mods on ModsFinder, and one of 25,772 Utility mods for Fabric. 8,071 mods support Minecraft 26.3.
More from fallen-breath
Similar mods
What the author says
A fork of plusls-carpet-addition, provides PCA protocol support to the server. That's everything it does Please note that since it's a stripped version of the PCA mod, it conflicts with plusls-carpet-addition of course
Official listing
- Modrinth page
- modrinth.com/mod/pca-protocol
- Owner
- fallen-breath
- Published
- 2025-12-10
- Updated on Modrinth
- 2026-09-19
- Facts verified
- 2026-10-15