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InputEngine

InputEngine is a cross-platform project designed to capture custom keystrokes from the Minecraft client and transmit them seamlessly to the server.

FabricNeoForgePaperPurpur
Loaders
FabricNeoForgePaperPurpur
Downloads on Modrinth
616
Followers on Modrinth
3
versions
18
Updated
June 29, 2026Jun 29
Published
in 2026
This is a library — other mods need it, and it adds nothing to the game by itself

At a glance

A library: other mods need it
Runs on Fabric, NeoForge, Paper and Purpur
For Minecraft 1.21–1.21.11
Latest version — 1.2.0-neoforge from June 29, 2026
License MIT — free
Where it's needed
In gameunknownOn serverunknown

The author didn't say where the mod is needed

Game versions1.21–1.21.11

InputEngine

A seamless cross-platform bridge capturing custom keystrokes from the Minecraft client to the server!

📖 Overview

InputEngine is a powerful utility mod/plugin designed to capture custom keystrokes from the Minecraft client and transmit them instantly to the server. It allows server-side plugins to react seamlessly to custom client-side keybinds (e.g., Skill 1, Dodge, Open Custom Menu).

This project acts as a two-part bridge: a Client Mod (Fabric/NeoForge) and a Server Plugin (Spigot/Paper).

✨ Features

  • 🎮 Client-Side Keybinding: Registers custom keybinds on the client. Fully supports both Fabric and NeoForge.
  • ⚡ Network Bridge: Sends efficient, lightweight payloads to the server whenever a bound key is pressed or released.
  • 🌍 Vanilla Server Compatible: The networking channel is optional on the client. You can safely keep the mod installed while joining vanilla servers without being disconnected!
  • 🛠️ Server-Side API: Exposes a custom Spigot Event (PlayerKeyPressEvent) for developers so your server-side plugins can easily listen and react to player inputs.

📥 Installation

InputEngine requires both a server-side plugin and a client-side mod to function correctly.

For Players (Client)

  1. Download the correct version for your mod loader (Fabric or NeoForge).
  2. Place the downloaded .jar file into your Minecraft client's mods/ folder.
  3. Fabric Users: Ensure you have the Fabric API installed.

For Server Owners (Plugin)

  1. Download the Spigot release file.
  2. Place it in your Spigot/Paper server's plugins/ folder.
  3. Restart your server.

💻 For Developers (API Usage)

If you are developing a Bukkit/Spigot plugin and want to react to a player's key press, you can easily use the API!

Listen to the PlayerKeyPressEvent:

import dev.darkblade.mod.input_engine.server.api.PlayerKeyPressEvent;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;

public class MyPluginListener implements Listener {

    @EventHandler
    public void onPlayerKeyPress(PlayerKeyPressEvent event) {
        if (event.isPressed()) {
            event.getPlayer().sendMessage("You pressed: " + event.getAction().name());
        } else {
            event.getPlayer().sendMessage("You released: " + event.getAction().name());
        }
    }
}

Full example are in the Example plugin and API Documentation

📜 License

This project is open-source and available under the MIT License.

FAQ

How to install InputEngine?

Install Fabric for your Minecraft version, download InputEngine for the same version and loader, put the file into the mods folder and launch the game with the loader profile.

Which Minecraft versions does InputEngine support?

InputEngine has builds for Minecraft 1.21–1.21.11.

License and source
MIT Licensefree to use and share with credit to the author
Original — Modrinth↗Files unchanged, verified with SHA-512Is this your mod? For rights holders

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