How do I install Jakobkmar Silk API Mod (1.21.1, 1.20.1) – Minecraft API for Kotlin?

Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. Download the .jar. Put it in the .minecraft/mods folder and launch that loader profile. In MC Java Mods, or directly above on this page.

What Minecraft version does Jakobkmar Silk API Mod (1.21.1, 1.20.1) – Minecraft API for Kotlin work with?

The listing gives Minecraft 1.21.1, 1.20.1. This is the version stated by the author or source site, not something we verified ourselves.

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Jakobkmar Silk API Mod (1.21.1, 1.20.1) – Minecraft API for Kotlin

Java mod listed for Minecraft 1.20–1.21. Downloads from the MC Java Mods app on Android.

by Moon

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Open in MC Java Mods Get it on Google Play →

Jakobkmar Silk API Mod is a Minecraft API for Kotlin targetting Fabric, Quilt and Paper.

Jakobkmar Silk API Mod (1.21.1, 1.20.1) – Minecraft API for Kotlin, screenshot 1

Features:

An inventory GUI API
A Kotlin wrapper for Brigadier
A Kotlin DSL for creating complex Text objects
Coroutine utilities and tasks
Kotlinx.serialization support for Minecraft classes
A scoreboard (sideboard) API
ItemStack utilities
Serialization of any class to NBT with kotlinx.serialization
An NBT builder
An API for storing persistent data on Chunks, Entities etc
Kotlinx.serialization based networking (packets c2s, s2c and c2c)
Kotlin Compose UI support
General extensions for Entities, Worlds and more
Geometry utilities

Jakobkmar Silk API Mod Download Links

For Minecraft 1.21.1, 1.21

For Minecraft 1.20.6

For Minecraft 1.20.4, 1.20.3

For Minecraft 1.20.2

For Minecraft 1.20.1, 1.20

For Minecraft 1.19.4

For Minecraft 1.19.3

For Minecraft 1.19.2, 1.19.1, 1.19

For Minecraft 1.18.2

For Minecraft 1.18.1

For Minecraft 1.17.1

For Minecraft 1.16.5

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft versions listed: 1.21.1, 1.20.1
How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
Where to get it: In MC Java Mods, or directly above on this page.

Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.

File checked by MCModsHub

Downloads as 201031.mcaddon
Download size: 855 KB
Download link checked 29 Jul 2026 — working
Mirrored on our own servers — the download does not depend on the original host

These come from our own check of the pack file, not from the source page.

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All Mods for Java All Minecraft Java mods Java mods for 1.21 Java mods for 1.20