OPAC Commands

A recreation of the OPAC - Better Commands mod for modern fabric, this mod simplifies and improves the commands of the Open Parties and Claims mod

218 Downloads

fabricutility

Rent Server with this Mod

About this Mod

This mod adds aliases for Open Parties and Claims commands.

/openpac-claims -> /claims

/openpac-claims claim -> /claim

/openpac-claims unclaim -> /unclaim

/openpac-parties -> /party

/opm -> /pc

The original commands still work as well.

Inspired by the mod OPAC - Better Commands for Neoforge 1.21.1

Available Versions

OPAC Commands 1.0.0release

MC 1.21.11fabric

January 19, 2026

How to Install OPAC Commands on Your Server

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.11).

Install Mod

Open the mod browser in the dashboard and search for "OPAC Commands". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.11

Server-side

✓ Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

OPAC Commands server crashes on startup – what to do?

Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.11). You can switch loaders with one click in the panel.

Is OPAC Commands compatible with fabric?

OPAC Commands officially supports fabric for Minecraft 1.21.11. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with OPAC Commands – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if OPAC Commands consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.