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Elysium APIMinecraft mod for 1.21.1

Elysium is a library mod with various utilities, built-in features and new data driven systems for both Mod-Developers and Modpack-Creators to utilize

newest supported release 1.21.1UtilityWorldgenLibrary
Latest version
1.21.1-2.0.1
Loaders
Forge, NeoForge
Licence
GPL-2.0-only
Downloads
2.5M
Updated
2 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Elysium API servers

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

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

Minecraft versions

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

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1Forge, NeoForge21+declared8 Aug 2024
1.20.1Forge, NeoForge17+declared12 Jun 2023

Download

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

Most recently published release

1.21.1-2.0.1release22 Aug 2026

ElysiumAPI-1.21.1-2.0.1.jar · 0.3 MB · for 1.21.1 · NeoForge

Download this release
22daa9fa8018…
Older versions16
  • 1.21.1-2.0.020 Aug 20261.21.10.3 MBd04741aab1dc…Get
  • 1.21.1-2.0.0-BETA.2412 Aug 20261.21.10.3 MB7f02ecefba3c…Get
  • 1.21.1-2.0.0-BETA.228 Aug 20261.21.10.3 MB491c953f1e65…Get
  • 1.21.1-2.0.0-BETA.617 Jun 20261.21.10.4 MB16.8k downloadsc80337548739…Get
  • 1.21.1-2.0.0-BETA.216 Jun 20261.21.10.4 MB740 downloads0eb654d40690…Get
  • 1.21.1-1.2.0-ALPHA.1931 May 20261.21.10.3 MB5.8k downloads70f8725418ab…Get
  • 1.21.1-1.2.0-ALPHA.1730 May 20261.21.10.3 MB633 downloadseb84f4e980ee…Get
  • 1.21.1-1.2.0-ALPHA.1225 Apr 20261.21.10.3 MB8.3k downloads345ad40fa2d7…Get
  • 1.21.1-1.2.0-ALPHA.82 Apr 20261.21.10.3 MB3.6k downloadsaef1aee7e923…Get
  • 1.20.1-1.1.329 May 20251.20.10.1 MB2.0M downloads60da824cd2e6…Get
  • 1.20.1-1.1.213 May 20251.20.10.1 MB21.7k downloadsb2c77d664ff5…Get
  • 1.20.1-1.1.19 May 20251.20.10.1 MB5.5k downloads3e694130c989…Get
  • 1.20.1-1.1.02 Apr 20251.20.10.1 MB87.7k downloads965a36412f37…Get
  • 1.20.1-1.0.217 Dec 20241.20.171 KB237.2k downloads0dc8510db7fd…Get
  • 1.20.1-1.0.116 Dec 20241.20.171 KB603 downloadsd0b926448afa…Get
  • 1.20.1-1.0.012 Dec 20241.20.171 KB323 downloadsd6d2a020ea62…Get

Frequently asked

Does Elysium API work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Elysium API 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 Elysium API support?

Everything the author has declared, from 1.20.1 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.

Which platform or loader does Elysium API support?

Forge, 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 Elysium API?

Among the supported Minecraft releases above, the highest recorded requirement is Java 21 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.

What licence is Elysium API under?

GPL-2.0-only, 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 Elysium API?

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 Elysium API 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. When available, recorded download links go to the source for that release; verify the publisher, filename and any available checksum before running it.

Works on the same versions

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

Used by

1 project lists Elysium API as a required dependency.

Details from Modrinth, where the author last updated it on 22 Aug 2026. We do not host files or republish descriptions. Available download links point to the author’s own release.

Is this information wrong or missing something? .