Just Core
- By
A lightweight server-side API providing shared modules, player states, events, and audit infrastructure for the Just mod ecosystem.
Just Core
Just Core is a lightweight, server-side API and shared infrastructure layer for Just Vanish, Just Essentials, and future Just mods for Minecraft 1.21.1 on NeoForge.
Only the server needs the mod. Players can connect with an unmodified client.
Features
- Stable
JustCoreApientry point for companion mods - Companion-module registration and diagnostics
- Optional player-state providers for features such as vanish
- Central append-only staff audit log
- Public staff-action events for integrations
- Built-in
/justcore infoand/justcore modulesdiagnostics - Designed for safe, optional interoperability between server-side administration mods
- No gameplay content or client installation required
Audit system
Companion mods can record staff actions through one common API. Audit entries can include the timestamp, source module, action type, staff UUID, target UUID, and additional details.
Entries are stored in world/justcore/audit.jsonl using an append-only JSON Lines format suitable for external tools and future integrations.
Commands
/justcore info— Display the installed API version and registered module count/justcore modules— List registered Just ecosystem modules
Commands require operator permission level 2.
Current status
Just Core 0.1.0 is an early development foundation. It adds no gameplay content by itself. Just Vanish does not currently require it, and Just Essentials remains in development.
Requirements
- Minecraft 1.21.1
- NeoForge 21.1.x
- Java 21
- Server-side installation only
Documentation
Complete installation, API, modules, auditing, events, commands, and compatibility documentation is available in the Just Core Wiki.
Official builds are distributed through CurseForge and Modrinth. Source code and bug reports are available on GitHub.
The Just Core Team
