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FormicAPIMinecraft mod for 1.21.1

API and utility classes common to mods of the Ant Colony

client and servernewest supported release 1.21.1Library
Latest version
2.5.1
Minecraft
1.20.1 to 1.21.1
Java
Java 21+
Loaders
Forge, NeoForge
Licence
MIT
Downloads
54.7k
Updated
23 d ago
Available on
Modrinth
Space NodeOur hosting

Host FormicAPI servers

One click and FormicAPI 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 FormicAPI 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 FormicAPI’s own host. Nothing is re-hosted here.

Most recently published release

2.5.1release17 Oct 2026

formicapi-1.21.1-2.5.1.jar · 0.9 MB · for 1.21.1 · NeoForge

Download this release
f5f2065cd173…
Older versions9
  • 2.4.322 Jun 20261.20.11.7 MB433 downloads6731113b6c63…Get
  • 2.4.222 Jun 20261.21.11.0 MB8.0k downloads865e2bf74dbd…Get
  • 2.3.411 Jun 20261.21.11.0 MB134 downloads04e2a04fd908…Get
  • 2.3.35 Jun 20261.21.11.0 MB1.4k downloads66850a7e126c…Get
  • 2.2.527 Apr 20261.21.11.0 MB13.4k downloadsf66095aa3fb9…Get
  • 2.2.426 Apr 20261.21.11.5 MB220 downloadse663bf1c0e32…Get
  • 2.2.324 Apr 20261.21.11.5 MB210 downloads326dcd3d439b…Get
  • 2.1.523 Apr 20261.21.11.5 MB397 downloads1564e161c642…Get
  • 1.6.831 Mar 20261.21.11.4 MB2.4k downloads1d7dcfbcdfa7…Get

Frequently asked

Does FormicAPI work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version FormicAPI 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 FormicAPI 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.

Do I need to install FormicAPI 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 FormicAPI 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 FormicAPI?

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 FormicAPI 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 FormicAPI?

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 FormicAPI 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.

GeckoLibA 3D animation library for entities, blocks, items, armor, and more!BookshelfAn open source library for other mods!Cloth Config API (Fabric/Forge/NeoForge)Config Screen API for MinecraftJourneyMapReal-time map used for mapping in-game or your browser as you explore.Architectury APIAn intermediary api aimed to ease developing multiplatform mods.Enchantment DescriptionsAdds in-game descriptions for enchantments to tooltips.

Details from Modrinth, where the author last updated it on 17 Oct 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? .