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Ace's Spell UtilsMinecraft mod for 1.21.1

A util API for making Iron's Spells and Spellbooks addons

client and servernewest supported 1.21.1UtilityMagic
Latest version
1.2.7.1-1.21.1
Minecraft
1.21.1
Java
Java 21+
Loader
NeoForge
Licence
MIT
Downloads
138.6k
Updated
14 d ago
Available on
Modrinth
Space NodeOur hosting

Host Ace's Spell Utils servers

One click and Ace's Spell Utils is installed with the right loader, on hardware built for it.

  • 1.21.1
  • NeoForge
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Minecraft versions

Every version Ace's Spell Utils declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge21+declared8 Aug 2024

Download

From Ace's Spell Utils’s own host. Nothing is re-hosted here.

All 28 releases
1.2.7.1-1.21.1release19 Jul 2026

aces_spell_utils-1.2.7.1-1.21.1.jar · 0.2 MB · for 1.21.1

Download latest
d27b6865f822…
Older versions24
  • 1.2.7.0-1.21.16 Jul 20261.21.10.2 MB8.7k downloads92e5669e853b…Get
  • 1.2.6.1-1.21.112 May 20261.21.10.2 MB29.3k downloads0237810c6f67…Get
  • 1.2.6-1.21.18 May 20261.21.10.2 MB2.5k downloads13f61ec93e8e…Get
  • 1.2.5-1.21.121 Mar 20261.21.10.2 MB19.4k downloadsfff1818320f8…Get
  • 1.2.4-1.21.119 Mar 20261.21.10.2 MB460 downloadsf4030de43b13…Get
  • 1.2.3-1.21.16 Feb 20261.21.10.2 MB19.3k downloads461607a8957d…Get
  • 1.2.2-1.21.129 Jan 20261.21.10.2 MB2.5k downloads90f44af4d1f9…Get
  • 1.2.1-1.21.115 Jan 20261.21.10.2 MB4.2k downloadsaaf12baa613a…Get
  • 1.2.0-1.21.115 Jan 20261.21.10.2 MB258 downloadsc9f4ea0ab3be…Get
  • 1.1.23-1.21.19 Jan 20261.21.10.2 MB3.7k downloads8c7dede33768…Get
  • 1.1.22-1.21.126 Dec 20251.21.10.2 MB3.5k downloads64c3e488938f…Get
  • 1.1.21-1.21.125 Dec 20251.21.10.2 MB367 downloads19e4a6dac355…Get
  • 1.1.20-1.21.119 Dec 20251.21.10.2 MB1.0k downloads6273aa989e99…Get
  • 1.1.19-1.21.15 Dec 20251.21.10.2 MB3.1k downloads777026a7c76b…Get
  • 1.1.18-1.21.17 Nov 20251.21.10.2 MB1.9k downloads9a2a8223ec52…Get
  • 1.1.17-1.21.118 Oct 20251.21.10.1 MB1.7k downloads60a60830a323…Get
  • 1.1.16-1.21.114 Oct 20251.21.10.1 MB692 downloadsce81d64c3e3a…Get
  • 1.1.15-1.21.114 Oct 20251.21.10.1 MB49 downloadsa68c613a562b…Get
  • 1.1.14-1.21.111 Oct 20251.21.10.1 MB352 downloads240be1113e7e…Get
  • 1.1.13-1.21.13 Oct 20251.21.10.1 MB581 downloads2e1d9272fa76…Get
  • 1.1.12-1.21.127 Sept 20251.21.10.1 MB547 downloadsb3d426271883…Get
  • 1.1.11-1.21.115 Sept 20251.21.10.1 MB1.2k downloadsb51ee8e8258f…Get
  • 1.1.10-1.21.18 Sept 20251.21.10.1 MB393 downloads68021bd8828f…Get
  • 1.1.9-1.21.14 Sept 20251.21.10.1 MB265 downloads59eef8de979c…Get

Frequently asked

Does Ace's Spell Utils work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Ace's Spell Utils declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Do I need to install Ace's Spell Utils on the client or the server?

Both. Every player needs it installed and so does the server, so anyone joining without it will be refused.

Which platform or loader does Ace's Spell Utils support?

NeoForge. 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 Ace's Spell Utils?

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

What licence is Ace's Spell Utils under?

MIT, 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 Ace's Spell Utils?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download Ace's Spell Utils 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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Last checked 14 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? .