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AtomGuardMinecraft plugin for 1.21.11

🛡️ Advanced Minecraft Server Security & Exploit Protection — No scam unlike other plugins this one works fr.

server onlynewest supported 1.21.11UtilityGame MechanicsOptimizationManagement
Latest version
3.0.1+velocity
Minecraft
1.21 to 1.21.11
Java
Java 21+
Platforms
Bukkit, Velocity, Spigot, Paper
Licence
BSD-3-Clause
Downloads
1.2k
Updated
4 mo ago
Available on
Modrinth
Space NodeOur hosting

Host AtomGuard servers

One click and AtomGuard is installed on a Paper or Purpur server built for it.

  • 1.21.11
  • Bukkit
  • Velocity
  • Spigot
  • Paper
  • One click plugin install
  • Paper and Purpur ready
  • Automatic updates
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

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

Other plugins
MinecraftThroughJavaEvidenceReleased
1.21.11Bukkit, Velocity, Spigot, Paper21+declared9 Dec 2025
1.21.10Paper, Velocity, Spigot, Bukkit21+declared7 Oct 2025
1.21.9Paper, Velocity, Spigot, Bukkit21+declared30 Sept 2025
1.21.8Paper, Velocity, Spigot, Bukkit21+declared17 Jul 2025
1.21.7Paper, Velocity, Spigot, Bukkit21+declared30 Jun 2025
1.21.6Bukkit, Paper, Spigot, Velocity21+declared17 Jun 2025
1.21.5Bukkit, Velocity, Spigot, Paper21+declared25 Mar 2025
1.21.4Paper, Velocity, Spigot, Bukkit21+declared3 Dec 2024
1.21.3Bukkit, Velocity, Spigot, Paper21+declared23 Oct 2024
1.21.2Bukkit, Velocity, Spigot, Paper21+declared22 Oct 2024
1.21.1Paper, Velocity, Spigot, Bukkit21+declared8 Aug 2024
1.21Velocity, Paper, Spigot, Bukkit21+declared13 Jun 2024

Download

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

All 56 releases
3.0.1+velocityrelease26 May 2026

AtomGuard-Velocity-3.0.1.jar · 23.6 MB · for 1.21.4

Download latest
1ed7f3422cb4…
Older versions24
  • 3.0.1+core26 May 20261.21.43.4 MB82 downloads619c6ac36f92…Get
  • 2.3.0-dev.96+velocity26 May 20261.21.423.6 MB9 downloads613c0616677d…Get
  • 2.3.0-dev.96+core26 May 20261.21.43.4 MB10 downloads03b33249759a…Get
  • 2.3.0-dev.94+velocity15 May 20261.21.423.6 MB8 downloads4f1317c2b679…Get
  • 2.3.0-dev.94+core15 May 20261.21.43.4 MB8 downloadse37002f2e2fb…Get
  • 2.3.0+velocity15 May 20261.21.423.6 MB10 downloadsff7a8ce66f15…Get
  • 2.3.0+core15 May 20261.21.43.4 MB13 downloads7f1ed5c36269…Get
  • 2.3.0-dev.91+core15 May 20261.21.43.4 MB12 downloads3309fe185660…Get
  • 2.2.6+velocity28 Apr 20261.21.423.6 MB13 downloads7f22041a3be5…Get
  • 2.2.6+core28 Apr 20261.21.43.3 MB16 downloadse0633a012d59…Get
  • 2.2.4-dev.76+velocity9 Apr 20261.21.423.6 MB14 downloadsc8492e2f1e8f…Get
  • 2.2.4-dev.76+core9 Apr 20261.21.43.3 MB10 downloads9a7ee3948b67…Get
  • 2.2.3+velocity2 Apr 20261.21.423.6 MB16 downloadse8e51a22f86b…Get
  • 2.2.3+core2 Apr 20261.21.43.3 MB26 downloadseb7d84cf2807…Get
  • 2.2.2+velocity29 Mar 20261.21.423.6 MB20 downloads51c2017ed4dd…Get
  • 2.2.2+core29 Mar 20261.21.43.3 MB19 downloads96abfc865efb…Get
  • 2.2.1+velocity28 Mar 20261.21.423.6 MB11 downloads4b91b2592284…Get
  • 2.2.1+core28 Mar 20261.21.43.3 MB16 downloadsaba02a88cb18…Get
  • 2.2.0+velocity28 Mar 20261.21.423.6 MB12 downloadsdc23f8432db2…Get
  • 2.2.0+core28 Mar 20261.21.43.3 MB15 downloads58c76b1daa75…Get
  • 2.2.0-dev.71+velocity28 Mar 20261.21.423.6 MB5 downloads1abc70ecd58e…Get
  • 2.2.0-dev.71+core28 Mar 20261.21.43.3 MB10 downloads4fedafa8b597…Get
  • 2.1.4+velocity26 Mar 20261.21.423.5 MB5 downloadsff8cc3c1bf89…Get
  • 2.1.4+core26 Mar 20261.21.43.3 MB15 downloads66b0d42910bb…Get

Frequently asked

Does AtomGuard work on Minecraft 1.21.11?

Yes. 1.21.11 is the newest Minecraft version AtomGuard 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 AtomGuard support?

Everything the author has declared, from 1.21 up to 1.21.11. The full list is in the table above, with the Java runtime each version needs next to it.

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

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

Which platform or loader does AtomGuard support?

Bukkit, Velocity, Spigot, Paper. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for AtomGuard?

On the newest Minecraft version it supports, Java 21 or newer. The requirement comes from the Minecraft version you run rather than from the plugin itself, so on an older supported Minecraft the answer is that version's Java, not this one.

What licence is AtomGuard under?

BSD-3-Clause, 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 AtomGuard?

Choose the release variant for your server platform. Paper, Spigot, Purpur and Bukkit files go in the server's plugins folder; Fabric, Forge, NeoForge and Quilt files go in the mods folder. Restart after installing and check that the Minecraft version matches your server.

Where do I download AtomGuard safely?

Start with the author's page on Modrinth, which is where the data here is synced from. MCReference does not host or repackage files. The download link goes to the source recorded for that release; verify the publisher, filename and checksum before running it.

Works on the same versions

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

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Details from Modrinth, where the author last updated it on 26 May 2026. 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? .