
Illcalibour's AI Chat
Minecraft Mod that adds an AI Chatbot into your Minecraft using Ollama
Screenshots



About this Mod
Illcalibour's AI Chat is a Fabric client mod for Minecraft 1.21.8 that adds an AI chatbot to in-game chat using a local Ollama model (default: qwen2.5:3b).
When you send a trigger message (for example Hey AI ...), the mod sends the prompt to your local AI backend and posts the response in chat. By default, AI replies are sent to server chat so all players can see them. Triggers, model settings, and behavior are fully configurable in Mod Menu.
Features:
- Configurable trigger prefixes (Hey AI, KI mach, etc.)
- Toggle AI feature on/off
- Option to send or block the trigger message
- Option to send AI replies to server chat
- Local AI backend support via Ollama
- In-game configuration via Mod Menu + Cloth Config
Requirements:
- Minecraft 1.21.8
- Fabric Loader
- Fabric API
- Mod Menu
- Cloth Config
- Java 21
- Ollama running locally
- Recommended model: qwen2.5:3b
How to run:
- Install Ollama (https://ollama.com/download)
- Open a new Powershell and paste in following command "ollama pull qwen2.5:3b"
- Start Minecraft and chat with your new AI friend
This project was fully programmed with AI and inspired by l33T on YouTube.
!USING AT YOUR OWN RISK!
Available Versions
How to Install Illcalibour's AI Chat 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 (1.21.11).
Install Mod
Open the mod browser in the dashboard and search for "Illcalibour's AI Chat". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.11, 1.21.10, 1.21.9 (+1 more)
Server-side
✗ UnsupportedRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Illcalibour's AI Chat 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 (1.21.11). You can switch loaders with one click in the panel.
Is Illcalibour's AI Chat compatible with fabric?
Illcalibour's AI Chat officially supports fabric for Minecraft 1.21.11, 1.21.10, 1.21.9. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Illcalibour's AI Chat – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Illcalibour's AI Chat 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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Install Illcalibour's AI Chat with just one click on your server.