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QuantumACMinecraft plugin for 26.1.2

This is an anti cheat plugin that supports PaperMC 1.21.x. It has unique features such as AntiFreeCam together with all regular checks other AntiCheats would have.

server onlynewest supported 26.1.2UtilityGame MechanicsManagement
Latest version
6.11
Minecraft
1.21.1 to 26.1.2
Java
Java 25+
Loader
Paper
Licence
LicenseRef-All-Rights-Reserved
Downloads
247
Updated
2 mo ago
Available on
Modrinth
Space NodePartner

Host QuantumAC servers

One click and QuantumAC is installed with the right loader, on hardware built for it.

  • 26.1.2
  • Paper
  • One click plugin install
  • Paper and Purpur ready
  • Automatic updates
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Minecraft versions

Every version QuantumAC declares support for, newest first, with the Java runtime that version needs.

Other plugins
MinecraftThroughJavaEvidenceReleased
26.1.2Paper25+declared9 Apr 2026
26.1.1Paper25+declared1 Apr 2026
26.1Paper25+declared24 Mar 2026
1.21.11Paper21+declared9 Dec 2025
1.21.10Paper21+declared7 Oct 2025
1.21.9Paper21+declared30 Sept 2025
1.21.8Paper21+declared17 Jul 2025
1.21.7Paper21+declared30 Jun 2025
1.21.6Paper21+declared17 Jun 2025
1.21.5Paper21+declared25 Mar 2025
1.21.4Paper21+declared3 Dec 2024
1.21.3Paper21+declared23 Oct 2024
1.21.2Paper21+declared22 Oct 2024
1.21.1Paper21+declared8 Aug 2024

Download

From QuantumAC’s own host. Nothing is re-hosted here.

6.11release15 Jun 2026

QuantumAC-6.11.jar · 0.2 MB · for 26.1, 26.1.1, 26.1.2

Download latest
b5619caee911…
Older versions9
  • 6.914 Jun 202626.1, 26.1.1, 26.1.20.2 MB8 downloadsd89c0bd44e44…Get
  • 5.1616 May 20261.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.50.2 MB134 downloads0c26985453cb…Get
  • 5.714 May 20261.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.50.1 MB6 downloadsd6f3830a2d11…Get
  • 5.49 May 20261.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.50.1 MB8 downloads0f80ae214327…Get
  • 5.39 May 20261.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.50.1 MB4 downloads8e8c1fcc56ca…Get
  • 5.29 May 20261.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.50.1 MB4 downloads3a2942e3cfb2…Get
  • 4.108 May 20261.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.50.1 MB7 downloadsd0dc30dcf953…Get
  • 4.82 May 20261.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.50.1 MB8 downloadse8afe2079f5e…Get
  • 4.71 May 20261.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.50.1 MB10 downloadsf7a814723234…Get

Frequently asked

Does QuantumAC work on Minecraft 26.1.2?

Yes. 26.1.2 is the newest Minecraft version QuantumAC declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Which Minecraft versions does QuantumAC support?

Everything the author has declared, from 1.21.1 up to 26.1.2. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install QuantumAC on the client or the server?

The server only. Players join with an ordinary Minecraft client and install nothing.

Which server software does QuantumAC need?

Paper. A build for one server platform will not load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for QuantumAC?

Java 25 or newer, because that is what the newest Minecraft release it supports requires. The requirement comes from the game rather than from the plugin itself.

What licence is QuantumAC under?

LicenseRef-All-Rights-Reserved, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.

How do I install QuantumAC?

Download the file from the author's own release, drop it into your server's plugins folder, and restart the server. It generates its configuration on first start. Check the Minecraft version matches the one your server runs.

Where do I download QuantumAC safely?

From the author's own page on Modrinth, which is where the data here is synced from. MCReference never mirrors, re-hosts or repackages a file: every download button points at the original source, so you get exactly what the author published.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

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Last checked 6 d ago against Modrinth. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

Is this information wrong or missing something? .