NexusAI integrates Google's Gemini AI directly into your
Paper 1.21.1 server. Players can chat with an intelligent
assistant, get Minecraft-related help, and even have the AI
suggest and execute server commands — all in real time with
zero main thread blocking.
─────────────────────────────────────────────────────────────
Features
★ Gemini AI Integration
Powered by Google AI Studio (Gemini 2.5 Flash Lite).
Configurable model, temperature, max tokens & timeout.
★ Multi-Turn Conversation History
Each player's last 10 messages are stored in memory.
The AI remembers context across multiple interactions.
Resets on server restart — no database required.
★ Command Suggestion GUI
When the AI suggests a command using [CMD:/command],
a 3-row confirmation GUI opens automatically.
Players can approve, deny, or let it auto-close (30s).
OP players can be configured to auto-approve.
★ PlaceholderAPI Support (Soft Depend)
Full PAPI support in both config messages and prompt.yml.
Works perfectly without PAPI installed.
★ Built-In Placeholders (No PAPI needed)
{player}, {world}, {x}, {y}, {z}, {health}, {food},
{level}, {gamemode}, {ping}, {online}, {max},
{time}, {date}, {server_name}
★ Fully Async HTTP Requests
All Gemini API calls run off the main thread using
Java 21's built-in HttpClient. Zero server lag.
★ Cooldown System
Per-player cooldown configurable in seconds.
Cooldown is removed on API error (no unfair punishment).
★ MiniMessage Support
All messages use Adventure's MiniMessage format
including gradients, colors, bold, italic and more.
★ Fully Configurable
config.yml — API settings, cooldown, prefix, messages
prompt.yml — System prompt, AI personality, rules
─────────────────────────────────────────────────────────────
Commands & Permissions
/nexus <message> - Send a message to AI
/ai, /sor, /nexusai - Aliases for /nexus
/nexus temizle - Clear your own history
/nexus reload - [Admin] Reload all configs
/nexus clearhistory <player> - [Admin] Clear player's history
nexusai.use - Use NexusAI commands (default: everyone)
nexusai.admin - Admin commands (default: op)
─────────────────────────────────────────────────────────────
Installation
1. Drop NexusAI-1.0.0.jar into your plugins/ folder
2. Start the server — config files are created automatically
3. Open plugins/NexusAI/config.yml
4. Set your Google AI Studio API key
(Free API key at: https://aistudio.google.com/)
5. Run /nexus reload
6. Test with: /nexus Hello!
─────────────────────────────────────────────────────────────
Requirements
• Paper 1.21.1 (Spigot NOT supported)
• Java 21
• Google AI Studio API Key (Free tier available)
• PlaceholderAPI (Optional)
─────────────────────────────────────────────────────────────
Author : Neony
Website : https://neonyy.zya.me
Version : 1.0.0
License : MIT
================================================================
Paper 1.21.1 server. Players can chat with an intelligent
assistant, get Minecraft-related help, and even have the AI
suggest and execute server commands — all in real time with
zero main thread blocking.
─────────────────────────────────────────────────────────────
Features
★ Gemini AI Integration
Powered by Google AI Studio (Gemini 2.5 Flash Lite).
Configurable model, temperature, max tokens & timeout.
★ Multi-Turn Conversation History
Each player's last 10 messages are stored in memory.
The AI remembers context across multiple interactions.
Resets on server restart — no database required.
★ Command Suggestion GUI
When the AI suggests a command using [CMD:/command],
a 3-row confirmation GUI opens automatically.
Players can approve, deny, or let it auto-close (30s).
OP players can be configured to auto-approve.
★ PlaceholderAPI Support (Soft Depend)
Full PAPI support in both config messages and prompt.yml.
Works perfectly without PAPI installed.
★ Built-In Placeholders (No PAPI needed)
{player}, {world}, {x}, {y}, {z}, {health}, {food},
{level}, {gamemode}, {ping}, {online}, {max},
{time}, {date}, {server_name}
★ Fully Async HTTP Requests
All Gemini API calls run off the main thread using
Java 21's built-in HttpClient. Zero server lag.
★ Cooldown System
Per-player cooldown configurable in seconds.
Cooldown is removed on API error (no unfair punishment).
★ MiniMessage Support
All messages use Adventure's MiniMessage format
including gradients, colors, bold, italic and more.
★ Fully Configurable
config.yml — API settings, cooldown, prefix, messages
prompt.yml — System prompt, AI personality, rules
─────────────────────────────────────────────────────────────
Commands & Permissions
/nexus <message> - Send a message to AI
/ai, /sor, /nexusai - Aliases for /nexus
/nexus temizle - Clear your own history
/nexus reload - [Admin] Reload all configs
/nexus clearhistory <player> - [Admin] Clear player's history
nexusai.use - Use NexusAI commands (default: everyone)
nexusai.admin - Admin commands (default: op)
─────────────────────────────────────────────────────────────
Installation
1. Drop NexusAI-1.0.0.jar into your plugins/ folder
2. Start the server — config files are created automatically
3. Open plugins/NexusAI/config.yml
4. Set your Google AI Studio API key
(Free API key at: https://aistudio.google.com/)
5. Run /nexus reload
6. Test with: /nexus Hello!
─────────────────────────────────────────────────────────────
Requirements
• Paper 1.21.1 (Spigot NOT supported)
• Java 21
• Google AI Studio API Key (Free tier available)
• PlaceholderAPI (Optional)
─────────────────────────────────────────────────────────────
Author : Neony
Website : https://neonyy.zya.me
Version : 1.0.0
License : MIT
================================================================
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Spigot — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
NexusAI | Google Gemini AI Assistant | Paper 1.21.1 | Free is a free Minecraft Java mod. Compatible with Minecraft 1.21. Downloaded 17 times (via Spigot). Download it and open it directly in the game.