Nexa AI is a chat assistant AI agent for Minecraft servers. It runs entirely server-side as a plugin for Paper or Spigot, allowing players to interact with an intelligent AI assistant directly through in-game chat. Nexa understands your world — from player stats and inventory to the environment — and can perform actions like teleporting, spawning entities, or changing time/weather (with proper permissions).

Also available as a Fabric mod on CurseForge and Modrinth.

Features

• Two interaction modes — Ask-before-act & Autonomous
  
  
• Server-side operation — no client installation required
  
  
• Privileged tools with previews and confirmation dialogs
  
  
• Enforces per-player limits and global cooldowns
  
  
• Smart actions: teleport, locate, change weather/time, manage locations, get player/environment info, view inventories, spawn entities, apply effects, and more
  

Installation
Requirements:

• Java 21+
  
  
• Paper or Spigot server 1.21.8+
  

Steps:

1. Drop nexa-paper jar into your server’s plugins/ folder.
   
   
2. Restart the server.
   
   
3. Use /nexa in chat to begin.
   

Fair Use, Safety, and Privacy

• Community-built and free: This project is built and maintained by me. Please use responsibly.
  
  
• Gemini API usage: Nexa uses Google’s Gemini API. Google’s terms and data policies apply to your interactions.
  
  
• Key protection: The Cloudflare Worker keeps the Gemini API key server-side to ensure it’s never exposed.
  
  
• Safety and moderation: Harmful or exploitative use of Nexa can result in access denial.
  
  
• Abuse monitoring: Only minimal metadata is logged to detect abuse and maintain rate limits. No gameplay chat data is shared or sold.
  
  
• Consequences: Misuse or repeated harmful activity may result in blocking or blacklisting.
  

Support & Contributions
If you encounter issues, have feedback, or want to contribute, please visit the GitHub repository or join my Discord server.
Discord: https://discord.gg/Wvst4znsgk