mqttlib
by singhom931
mqttlib is a NeoForge library that bundles MQTT client support so other client mods can use it without extra installation steps.
What it does
The library gives other NeoForge mods a working MQTT client, which lets them exchange messages over an MQTT broker. Its main use is as a dependency: EndroCity Client requires it to run, and it is the mod that installs the MQTT code into the game's environment.
Only the client needs mqttlib, so a server can run without it. Files are published for NeoForge 1.21.1 only, with version 1.0.0 as the latest file, released 2025-12-13. The mod is not open source and is released under All rights reserved.
Key features
MQTT messaging for other mods
Mods that depend on it can send and receive MQTT messages without bundling their own copy of the library.
Bundled MQTT code
The required MQTT code is packaged inside the mod jar, so players do not need to locate and install it separately.
Client-side dependency
Installed on the client, it supplies the MQTT code that dependent client mods call while the game runs.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Required by 1 mod
Questions
Does EndroCity Client need mqttlib?
Does mqttlib need to be installed on a server?
In the catalog
mqttlib is one of 5,392 Social mods on ModsFinder, and one of 1,784 Social mods for NeoForge. 32,366 mods support Minecraft 1.21.1.
More from singhom931
Similar mods
What the author says
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
Official listing
- Modrinth page
- modrinth.com/mod/mqttlib
- Owner
- singhom931
- Published
- 2025-12-13
- Updated on Modrinth
- 2025-12-13
- Facts verified
- 2026-10-15