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SI: Essentials

The main API, library and toolkit by Soncresity Industries.
by SoncresityIndustries
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Updated Jul 6, 2026
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Addons API and Library Server Utility

🌐 SI: Essentials

The main API, library and toolkit by Soncresity Industries.


✨ Overview

SI: Essentials is an API, library and toolkit, all in one mod. It's a great pick for anyone looking to improve their modpack or developing their own mod.


🔧 Features

Remover Module

The Remover submdule allows you to disable certain items in the game. You can do that through IDs, Components and regular expressions (regex). You can either disable the item completely or only disable specific operations/features such as attacking/interacting with the item or its recipes.

Logger

SI: Essentials comes with a custom logger, that is based on the slf4j logger that is commonly used in Minecraft Mods. With our setup, we allow to create separate log files for each world that only contain the output of your mod. This makes finding issues in your code faster.

Our logger also comes with a debug option that is controlled with the global debug_enabled value of the SI: Essentials Common Cnfg. While debug output is only visible depending on that value in the Minecraft logs, debug output will always be logged to your custom logfile that was explained above.

Configuration API

Our Configuration API allows you, as a developer, to create multiple configurations in your projects and access and set configuration keys and values. Currently, you can choose the cnfg or the objt file type.

Command Utilities

The Command Utilities class allows you to execute commands as a player while being able to customize the permissions, position and rotation.

Decimal Utilities

The Decimal Utilities class allows you to round a decimal value to a set number of decimal points / places after the comma.

File Hash Utilities

The File Hash Utilities class allows you get the SHA256 file hash / checksum of a file as a String.

Item Utilities

The Item Utilities class allows you parse Items and Item Stacks from Strings or vice versa.

Message Utilities

The Message Utilities class allows you to send (privately and broadcast) messages (in the chat or Action Bar) with the Adventure/MiniMessage API.

Registry Utilities

The Registry Utilities class makes the process of registering Items and Blocks easier by providing useful helper methods.

Singleplayer Utilities

The Singleplayer Utilities class allows check whether a ServerPlayer is the host of a Singleplayer World. This may be useful when your Mod includes banning players but you don't want to ban the world host as otherwise their world wouldn't get saved properly and other players would get kicked.

Slot Utilities

The Slot Utilities class allows you to get the x and y position of a slot in a large chest GUI. This is useful for our Slot presets

Sound Parser

The Sound Parser class allows you to parse Sound IDs to a SoundEvent which you can then use to either play a sound privately for one player or broadcast it across an entire dimension.

Title Utilities

The Decimal Utilities class allows you to show and broadcast fully customizable Titles to players using the Adventure/MiniMessage API.


📦 Requirements

  • Minecraft 1.21.1, 1.21.4, 1.21.8, 1.21.10 or 1.21.11
  • SI: Essentials
  • NeoForge or Fabric

📖 Wiki & Documentation

📚 Learn more, guides, and full documentation: ➡️ SI: Essentials Wiki


🌍 Community & Support

💬 Join our community and get help: ➡️ Discord

🐛 Report bugs & request features: ➡️ Support


🔗 Links

🌐 Website 📺 YouTube 📱 Socials


❤️ Support Us

If you enjoy this project, consider supporting us: ➡️ Patreon


🏢 About Soncresity Industries

This project is developed by Soncresity Industries, a team focused on creating high-quality Minecraft experiences, tools, and systems.

🌐 Website | 💬 Discord


⚠️ License & Usage

This project is licensed under the Soncresity Standard License (SSL). You can view it here


🚀 Credits

  • Soncresity Industiries
  • SkyKing_PX
  • KalarianAthecila
NeoForge 26.1.2 2.4.0-b1
MC Client, NeoForge, Server, 26.1.2
Beta 2026-06-25 Get
Fabric 26.1.2 2.4.0-b1
MC Client, Fabric, Server, 26.1.2
Beta 2026-06-25 Get
NeoForge 1.21.4 2.3.2
MC Client, 1.21.4, NeoForge, Server
Release 2026-05-09 Get
Fabric 1.21.1 2.3.2
MC Client, Fabric, 1.21.1, Server
Release 2026-05-09 Get

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