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Truly Modular: Modular Item APIMinecraft mod for 1.21.1

This mod is the API designed for the Truly Modular mods

client and servernewest supported 1.21.1UtilityLibrary
Latest version
2.3.8-1.21-neoforge
Minecraft
1.20.1 to 1.21.1
Java
Java 21+
Loaders
Quilt, NeoForge, Fabric, Forge
Licence
LicenseRef-Polyform-Shield-1.0.0-
Downloads
76.1k
Updated
28 d ago
Available on
Modrinth
Space NodeOur hosting

Host Truly Modular: Modular Item API servers

One click and Truly Modular: Modular Item API is installed with the right loader, on hardware built for it.

  • 1.21.1
  • Quilt
  • NeoForge
  • Fabric
  • Forge
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • 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 Truly Modular: Modular Item API declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1Quilt, NeoForge, Fabric, Forge21+declared8 Aug 2024
1.21NeoForge, Fabric, Forge, Quilt21+declared13 Jun 2024
1.20.1Fabric, Quilt, NeoForge, Forge17+declared12 Jun 2023

Download

From Truly Modular: Modular Item API’s own host. Nothing is re-hosted here.

All 60 releases
2.3.8-1.21-neoforgerelease18 Jun 2026

Truly-Modular-miapi-neoforge-2.3.8-1.21.jar · 3.7 MB · for 1.21.1, 1.21

Download latest
5fb24dc923bc…
Older versions24
  • 2.3.8-1.21-fabric18 Jun 20261.21.1, 1.213.7 MB353 downloadsfb7db4961698…Get
  • 2.3.7-1.21-neoforge10 Jun 20261.21.1, 1.213.7 MB444 downloadsae9d25a489c3…Get
  • 2.3.7-1.21-fabric10 Jun 20261.21.1, 1.213.6 MB78 downloadsa4f4f7461c56…Get
  • 2.3.6-1.21-neoforge23 Apr 20261.21.1, 1.213.6 MB2.6k downloads874b62e80a85…Get
  • 2.3.6-1.21-fabric23 Apr 20261.21.1, 1.213.5 MB391 downloads5592860f4b7e…Get
  • 2.3.5-1.21-neoforge16 Apr 20261.21.1, 1.213.6 MB438 downloadsfb7a01201483…Get
  • 2.3.5-1.21-fabric16 Apr 20261.21.1, 1.213.5 MB53 downloadsfb4dc7de822f…Get
  • 2.3.4-1.21-neoforge14 Apr 20261.21.1, 1.213.6 MB108 downloadsccc6d7655370…Get
  • 2.3.4-1.21-fabric14 Apr 20261.21.1, 1.213.5 MB31 downloads170a0f8539db…Get
  • 2.3.3-1.21-fabric9 Apr 20261.21.1, 1.213.5 MB46 downloads003ffb4ef4c6…Get
  • 2.3.3-1.21-neoforge9 Apr 20261.21.1, 1.213.6 MB112 downloads68acdfcb8a93…Get
  • 2.3.2-1.21-neoforge2 Apr 20261.21.1, 1.213.5 MB200 downloads99127b8be825…Get
  • 2.3.2-1.21-fabric2 Apr 20261.21.1, 1.213.5 MB100 downloads1cecc8f3f2df…Get
  • 2.3.1-1.21-neoforge1 Apr 20261.21.1, 1.213.5 MB86 downloads3d8d6d626a12…Get
  • 2.3.1-1.21-fabric1 Apr 20261.21.1, 1.213.5 MB31 downloads83073165ce08…Get
  • 2.3.0-1.21-fabric1 Apr 20261.21.1, 1.213.5 MB21 downloads7f045a4317b0…Get
  • 2.3.0-1.21-neoforge1 Apr 20261.21.1, 1.213.5 MB27 downloads47e5bf4893fe…Get
  • 1.1.49-1.20.1-neoforge8 Mar 20261.20.13.3 MB2.0k downloads8a9c3fd18489…Get
  • 1.1.49-1.20.1-fabric8 Mar 20261.20.13.1 MB1.2k downloads79278d09064e…Get
  • 2.2.3-1.21-fabric23 Jan 20261.21.1, 1.213.3 MB447 downloadsf773220f9e7e…Get
  • 2.2.3-1.21-neoforge23 Jan 20261.21.1, 1.213.4 MB1.8k downloads32dd3cb6dd18…Get
  • 2.2.2-1.21-neoforge21 Jan 20261.21.1, 1.213.4 MB64 downloads4133644c00e2…Get
  • 2.2.2-1.21-fabric21 Jan 20261.21.1, 1.213.3 MB24 downloads27bf1642e9fb…Get
  • 2.2.1-1.21-fabric14 Jan 20261.21.1, 1.213.3 MB78 downloads6d9b375efbe1…Get

Frequently asked

Does Truly Modular: Modular Item API work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Truly Modular: Modular Item 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 Truly Modular: Modular Item 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.

Do I need to install Truly Modular: Modular Item API 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 Truly Modular: Modular Item API support?

Quilt, NeoForge, Fabric, Forge. 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 Truly Modular: Modular Item API?

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 Truly Modular: Modular Item API under?

LicenseRef-Polyform-Shield-1.0.0-, 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 Truly Modular: Modular Item 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 Truly Modular: Modular Item 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. 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.

BookshelfAn open source library for other mods!GeckoLibA 3D animation library for entities, blocks, items, armor, and more!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.Jade 🔍Shows information about what you are looking at. (Hwyla/WAILA fork for Minecraft 1.16+)

Last checked 28 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? .