AI Friend by Kurzer
by Kurzer
AI Friend lets players talk with a new NPC that answers through real language models reached over the OpenRouter API.
What it does
The mod adds an NPC that Minecraft communicates with using artificial intelligence. A player can ask it anything, give it tasks, and have it respond, move around, interact with the world, place or break blocks, and run commands. Responses come from models available on OpenRouter, including GPT-4, Claude, Mistral and LLaMA, and a player chooses which model to use in the config.
The NPC is created with a spawn egg from the Spawn Eggs creative tab. Requests to the API run asynchronously over HTTP, so they do not freeze the server. The mod works on dedicated servers and in singleplayer, and it needs only Fabric API as an extra mod. Installation means launching the game once, getting a free API key from openrouter.ai, pasting it into the apiKey field, and choosing a model.
It is installed on the player's side alone, so servers need nothing. Files are published for Fabric and NeoForge across 8 release versions, 1.21.1 – 26.3, and the code is licensed under the Apache License 2.0, which is not open source.
Key features
Conversational NPC
An NPC answers questions and follows instructions in free-form chat, with replies generated by the chosen model.
Action system
The NPC can move around, place and break blocks, interact with the world and run commands.
Configurable model and prompt
The config sets the AI model, the system prompt, the temperature and the response length.
Non-blocking requests
HTTP calls to OpenRouter run asynchronously, so the server keeps ticking while a reply is pending.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Who it’s for: Players who want a conversational companion in singleplayer, and server owners who run dedicated servers and are willing to supply an OpenRouter API key.
How it compares
MineGPT is a Fabric mod for 1.21.11 – 26.2 under the MIT License, and it is open source, with the client required and the server optional. Living NPC and Vanilla NPC are server-side NPC mods with all rights reserved, and both require the server while clients may leave them out; AI Friend is client-side only and runs without a server install.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| AI Friend by Kurzer | Fabric and NeoForge | 1.21.1 – 26.3 | Client-side only | 2026-09-27 |
| MineGPT | Fabric | 1.21.11 – 26.2 | Client required, server optional | 2026-07-23 |
| Living NPC | Fabric, Forge, NeoForge and Quilt | 1.21.10 – 26.3 | Server required, client optional | 2026-01-07 |
| Vanilla NPC | Fabric, Forge, NeoForge and Quilt | 1.21.9 – 26.3 | Server required, client optional | 2026-04-07 |
Questions
Does AI Friend need Fabric API?
Does a server need the mod installed?
Which AI models can be used?
In the catalog
AI Friend by Kurzer is one of 5,392 Social mods on ModsFinder, and one of 4,084 Social mods for Fabric. 8,071 mods support Minecraft 26.3.
More from Kurzer
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What the author says
AI Friend adds a new NPC to Minecraft that communicates with you using real artificial intelligence via the OpenRouter API. Ask it anything, give it tasks — it will respond, move, and interact with the world! Real AI conversations — the NPC responds using any model available on OpenRouter (GPT-4, Claude, Mistral…
Official listing
- Modrinth page
- modrinth.com/mod/ai-friend-by-kurzer
- Owner
- Kurzer
- Published
- 2026-06-12
- Updated on Modrinth
- 2026-09-27
- Facts verified
- 2026-10-15