How do I install mqttlib?

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. Opens on Modrinth — not every file is mirrored on our own servers.

What Minecraft version does mqttlib work with?

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

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mqttlib

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

by singhom931 · on Modrinth

⬇ Download on Modrinth

Open in MC Java Mods Get it on Google Play →

Currently Required by Following Mods: EndrocityClient for NeoForge

Unlike Fabric, Neoforge has somewhat of a problem with importing external dependencies due to which the dependency has to be made into a jar of itself so we can use Jar in Jar to get stuff like MQTT working in Neoforge

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft version listed: 1.21.1
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: Opens on Modrinth — not every file is mirrored on our own servers.

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

Ships as mqttlib-1.0.0.jar — drop this file into the mods folder
Download size: 237 KB
Download link checked 22 Oct 2026 — working

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

Explore more

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