CurseForge · Minecraft mod
Utility Nexus Admin
A server administration utility mod featuring dynamic datapack loading, admin commands, and management tools for Minecraft 1.21.1 NeoForge servers.
Quick answer
Which Utility Nexus Admin release should I use?
Utility Nexus Admin (0.0.0-beta.13) targets 1.21.1 with NeoForge. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is Utility Nexus Admin required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does Utility Nexus Admin (0.0.0-beta.13) need?
Utility Nexus Admin (0.0.0-beta.13). Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add Utility Nexus Admin without breaking your instance.
Built for Utility Nexus Admin (0.0.0-beta.13). Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use Utility Nexus Admin (0.0.0-beta.13). It targets 1.21.1 with NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside Utility Nexus Admin (0.0.0-beta.13). It opens that exact file at the source.
About this project
What does Utility Nexus Admin add?
⚙️ Utility Nexus Admin
Server-side admin utility for NeoForge: inject datapacks into every world without a restart, and pregenerate chunks in the background without ever lagging or blocking players.
✨ Overview
🎯 Features
📦 Global Datapack Loader
Vanilla only loads datapacks from a single world's <world>/datapacks/ folder. This loads every folder or .zip datapack placed in <game-dir>/datapacks/ into every world, on dedicated servers and in single-player alike.
- Packs are selected before the world's first data load, so enabling them does not trigger an extra resource reload at startup
- Structure is validated first (
pack.mcmetaparses,data/directory present); invalid packs are skipped with a warning - A folder pack with no
pack.mcmetacan have a default one generated automatically - Runtime management, no restart:
/una datapack list,load|unload|reload <name>,validate <name>,loadall
🌎 Server-Safe Chunk Pregeneration
A background pregenerator designed so it can never get in a player's way or stall a login.
- Off-thread generation — chunks are requested asynchronously with a bounded number of requests in flight (
pregen.maxConcurrentChunks); the server thread never blocks building a chunk - Per-tick time budget (
pregen.maxMillisPerTick) plus an MSPT-aware throttle (pregen.maxServerMspt) — pregen skips any tick where the server is already running slow - Work / rest cycles — generate for
pregen.workSeconds, idle forpregen.restSeconds, repeat (set rest to 0 to always work) - Player-safe — pauses the instant a player is online or a connection reaches the login / configuration handshake; server-list pings are ignored; resumes only after the server has been empty for
pregen.resumeGraceSeconds - Deferred auto-start — starts
pregen.startupDelaySecondsafter the server is fully up, and only while it is empty, so it never collides with world load - Resumable — progress is written to a small file and picked up on the next start
- Commands:
/una pregen status | start | stop | pause | resumeand/una pregen config enabled|center|radius|chunksPerTick|dimension
⚙️ Configuration System
A single commented TOML file at config/utility_nexus/admin/config.toml (NeoForge ModConfigSpec). Every value is also reachable at runtime by its section.key name:
/una config get <key>— read a value (e.g.pregen.maxMillisPerTick)/una config set <key> <value>— change it and persist to disk/una config reload— re-read an externally edited file
🔐 Command Permissions
The whole /una tree is gated behind a configurable vanilla OP level (commands.opLevel, default 2). The datapack and config sub-trees can each be turned off entirely from the config. No permission-mod dependency.
🪶 Lightweight & Dependency-Free
Zero hard dependencies beyond NeoForge. Server-focused; every system is event-driven and idle until used.
⚙️ Configuration Reference
Full contents of config/utility_nexus/admin/config.toml:
| Key | Default | Notes |
|---|---|---|
| [datapack] | ||
datapack.autoLoad |
true | Inject datapacks found in <game-dir>/datapacks/ into every world. If false, that folder is ignored entirely. |
datapack.validateOnLoad |
true | Validate pack structure (pack.mcmeta parses, data/ present) before injecting; invalid packs are skipped with a warning. |
datapack.createMissingMetadata |
true | Generate a default pack.mcmeta (pack_format 48) for a folder pack that has none. Zip packs without one are skipped. |
| [commands] | ||
commands.opLevel |
2 | Minimum vanilla OP level required to use /una (0–4). Applied when the command tree is built. |
commands.enableDatapackCommands |
true | Register the /una datapack … sub-tree. |
commands.enableConfigCommands |
true | Register the /una config … sub-tree. |
| [logging] | ||
logging.level |
INFO | Minimum level the mod emits to the log: DEBUG, INFO, WARN or ERROR. |
| [pregen] | ||
pregen.enabled |
true | Auto-start chunk pregeneration on server start (only progresses while 0 players are online). |
pregen.startX / pregen.startZ |
0 / 0 | Center chunk (chunk coords, not blocks). |
pregen.radius |
0 | Radius in chunks around the center; a (2×radius+1) square is generated. 0 or negative is treated as a fixed large radius (12,500 chunks / 200,000 blocks). |
pregen.chunksPerTick |
50 | Upper bound on chunk requests submitted per tick (1–200). The real pace is governed by the budget and concurrency limits below. |
pregen.dimension |
minecraft:overworld | Target dimension id. |
pregen.maxConcurrentChunks |
4 | Maximum chunk-generation requests in flight at once (1–64). Lower = smoother. |
pregen.maxMillisPerTick |
8 | Wall-time budget per tick for pregen work (1–40 ms). |
pregen.maxServerMspt |
45 | If the mean tick time exceeds this (10–500 ms), pregen does nothing that tick. |
pregen.workSeconds |
300 | Seconds of active generation per work/rest cycle (5–86400). |
pregen.restSeconds |
120 | Seconds of rest between work phases (0–86400). 0 = never rest. |
pregen.resumeGraceSeconds |
30 | Seconds the server must stay continuously empty before pregen resumes (0–3600). |
pregen.startupDelaySeconds |
60 | Delay after the server finishes starting before pregen auto-starts (0–3600). |
Note: on a dedicated server set pause-when-empty-seconds=-1 in server.properties so the server keeps ticking while empty — otherwise pregen only runs when someone briefly connects. |
📋 Requirements
| Minecraft | 1.21.1 |
|---|---|
| NeoForge | 21.1.249+ |
| Java | 21 |
| Side | Server (works in single-player too) |
🎮 How to Use
- Install NeoForge 21.1.249 for Minecraft 1.21.1.
- Place Utility Nexus Admin in your
modsfolder. - Start once — a default config is written to
config/utility_nexus/admin/config.toml. - Put folder or
.zipdatapacks in<instance-or-server>/datapacks/; they load into every world automatically. - Run
/una helpin-game or from console for the full command list. - Chunk pregeneration auto-starts on an empty server after a short delay; tune it under the
[pregen]config section or with/una pregen, and monitor it with/una pregen status.
🙏 Credits
Developed by Stalking Dragons.

https://codex.skdragons.com/
Codex Stalking Dragons — Minecraft Modding
Project description from CurseForge.
Pick your setup
Utility Nexus Admin by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Utility Nexus Admin versions and loaders
Utility Nexus Admin (0.0.0-beta.13)
utility_nexus_admin-1.21.1-neoforge-21.1.249-0.0.0-beta.13.jar
3 Sept 2026
Utility Nexus Admin (0.0.0-beta.12)
utility_nexus_admin-1.21.1-neoforge-21.1.249-0.0.0-beta.12.jar
3 Sept 2026
Utility Nexus Admin (0.0.0-beta.11)
utility_nexus_admin-1.21.1-neoforge-21.1.249-0.0.0-beta.11.jar
3 Sept 2026
Utility Nexus Admin (0.0.0-beta.10)
utility_nexus_admin-1.21.1-neoforge-21.1.249-0.0.0-beta.10.jar
1 Sept 2026
Utility Nexus Admin (0.0.0-beta.9)
utility_nexus_admin-1.21.1-neoforge-21.1.249-0.0.0-beta.9.jar
1 Sept 2026
Utility Nexus Admin (0.0.0-beta.8)
utility_nexus_admin-1.21.1-neoforge-21.1.249-0.0.0-beta.8.jar
1 Sept 2026
Utility Nexus Admin (0.0.0-beta.7)
utility_nexus_admin-1.21.1-neoforge-21.1.249-0.0.0-beta.7.jar
1 Sept 2026
Utility Nexus Admin (0.0.0-beta.6)
utility_nexus_admin-1.21.1-neoforge-21.1.249-0.0.0-beta.6.jar
1 Sept 2026
Utility Nexus Admin (0.0.0-beta.5)
utility_nexus_admin-1.21.1-neoforge-21.1.249-0.0.0-beta.5.jar
1 Sept 2026
Utility Nexus Admin (0.0.0-beta.4)
utility_nexus_admin-1.21.1-neoforge-21.1.249-0.0.0-beta.4.jar
1 Sept 2026
Utility Nexus Admin (0.0.0-beta.3)
utility_nexus_admin-1.21.1-neoforge-21.1.249-0.0.0-beta.3.jar
31 Aug 2026
Looking for an older file? The official CurseForge project page is in Resources.