SystemsAPI
Housing builders who write scripts for Hypixel Housing's systems can use SystemsAPI, a Fabric library that exposes those systems to other mods.
What it does
The library abstracts the house systems of Hypixel Housing behind a set of methods, so a mod can interact with any or all of them from code rather than by hand. Action importing and action exporting move actions in and out of the systems, and error correction catches an import that does not go as planned and tries it again automatically.
SystemsAPI also supplies custom menus for its tools. An optimized importing step is planned and not yet available in the published builds. HTSL Reborn is the example implementation of the library and shows how another mod builds on it, and the mod that requires SystemsAPI is HTSL Reborn.
Required dependencies are Fabric API, Fabric Language Kotlin and oωo (owo-lib), all of which must be installed alongside it. The mod is published for Fabric only, in five release versions, and the code is released under the GNU Lesser General Public License v3.0 only, so it is open source.
Key features
Housing system abstraction
Methods that read and change Hypixel Housing systems from code, without each mod re-implementing the same logic.
Action importing
Actions can be brought into a housing system from an external source, with errors retried automatically.
Action exporting
Actions configured in a housing system can be written out again for reuse in another house.
Custom menus
Menu screens for working with the housing systems, offered to mods built on the library.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 3
Required by 1 mod
Use cases
Who it’s for: The library suits mod developers building tools for Hypixel Housing, and builders who rely on the mods that use it. It is not a standalone gameplay mod, so players gain nothing from it alone.
How it compares
Housing Toolbox is open source under the GNU Lesser General Public License v3.0 only and is published for Fabric across the same range as SystemsAPI. HousingCreativeTab is client-side only, is not open source, is released as All rights reserved and is published for 1.21.11 – 26.3. Housing Plus is server-side only, released under the MIT License and not open source, and is published for 26.1.2 alone.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| SystemsAPI | Fabric | 1.21.9 – 26.2 | Not published | 2026-09-06 |
| Housing Toolbox | Fabric | 1.21.9 – 26.2 | Not published | 2026-09-01 |
| HousingCreativeTab | Fabric | 1.21.11 – 26.3 | Client-side only | 2026-09-17 |
| Housing Plus | Fabric | 26.1.2 | Server-side only | 2026-06-03 |
Questions
Does SystemsAPI need Fabric API?
Which game versions does SystemsAPI support?
Does SystemsAPI have to be installed on the server?
In the catalog
SystemsAPI is one of 3,514 Library mods on ModsFinder, and one of 2,348 Library mods for Fabric. 13,894 mods support Minecraft 26.2.
More from Redstone Studios
Similar mods
What the author says
SystemsAPI is a fabric library that abstracts Hypixel Housing's house systems for other mods to use. For an example implementation, see HTSL Reborn. To use SystemsAPI in your mod, include the project in your maven/gradle project. Replace VERSION with the latest version, as shown in the Maven badge above (omit the V).
Official listing
- Modrinth page
- modrinth.com/mod/systemsapi
- Owner
- Redstone Studios
- Published
- 2026-01-29
- Updated on Modrinth
- 2026-09-06
- Facts verified
- 2026-10-15