
IoTcraft
Connecting the virtual world with the physical.
About this Mod
IoTcraft
The IoTcraft mod allows the player's client to connect to an MQTT broker. Afterward, it can send and receive messages in the form of commands, triggers or other methods defined by the user.
Requirements
Requires Fabric API, Cloth Config API and Mod Menu to function properly and for an easy setup.
Setup
After booting up the game, navigate to the mod's config (either through the Mods button provided by Mod Menu or in the config folder) and set up the MQTT broker connection details.
Available Versions
How to Install IoTcraft on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.4).
Install Mod
Open the mod browser in the dashboard and search for "IoTcraft". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.4, 1.21.3, 1.21.2 (+8 more)
Server-side
✗ UnsupportedRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
IoTcraft server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.4). You can switch loaders with one click in the panel.
Is IoTcraft compatible with fabric?
IoTcraft officially supports fabric for Minecraft 1.21.4, 1.21.3, 1.21.2. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with IoTcraft – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if IoTcraft consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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