
Modrinth · Minecraft mod
CatoAPI
Personal API for Katto's mods!
Quick answer
Which CatoAPI release should I use?
CatoAPI 1.0.4-beta-26.2 targets 26.2 with bukkit, Fabric, NeoForge. Installation on the client is optional. Installation on the dedicated server is optional. All 1 required mods have matching files.
Where it goes
Is CatoAPI required on the client, server, or both?
Installation on the client is optional. Installation on the dedicated server is optional.
The source marks this as usable on both the client and server.
What else does CatoAPI 1.0.4-beta-26.2 need?
1.0.4-beta-26.2. Change the file and its required mods may change too.
Install Fabric API first. We found matching files for this game-version and loader setup.
We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add CatoAPI without breaking your instance.
Built for CatoAPI 1.0.4-beta-26.2. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 1.0.4-beta-26.2. It targets 26.2 with bukkit, Fabric, NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install Fabric API first. We found matching files for this game-version and loader setup.
- 03
Put it on the correct side
Installation on the client is optional. Installation on the dedicated server is optional.
- 04
Pick the file you checked
Use the “Get this file” button beside 1.0.4-beta-26.2. It opens that exact file at the source.
About this project
What does CatoAPI add?

Requires CommandAPI in plugin.
This personal API, mostly used in Katto's (Banned Studios) projects, consists of a tool to simplify and improve the creation of mods (and plugins), featuring various utilities.
It allows you to handle packets, commands, keybinds, events, configs (and config screens), and more with greater ease and compatibility compared to the standard method.
It supports versions 1.20.x through 26.x and includes a universal file compatible with all mod and plugin loaders. Additionally, it employs methods that adapt functionality based on the version, eliminating the need for extensive changes.
Both the mod and plugin components use very similar methods to ensure greater consistency across your projects. Additionally, the packet system (networking) already has a built-in connection between mods and plugins.
Inspired by:
Disclaimer: This mod/plugin is currently in BETA. Bugs, crashes, or performance issues may occur. Use it at your own risk.
The documentation/wiki will be released soon.

If you have any problem or suggestion you can report it in the community discord (Spanish-speaking) by opening a ticket: https://discord.gg/sKRYYyVCnw
If you want to support us you can do so through:
- Patreon: https://www.patreon.com/c/BannedStudios
- Ko-Fi: https://ko-fi.com/soykatto
Project description from Modrinth.
Pick your setup
CatoAPI by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.2
2 loader builds26.1.2
2 loader builds26.1.1
2 loader builds26.1
2 loader builds1.21.11
2 loader builds1.21.10
2 loader builds1.21.9
2 loader builds1.21.8
2 loader builds1.21.7
2 loader builds1.21.6
2 loader builds1.21.5
2 loader builds1.21.4
2 loader buildsShowing the newest 12 of 21 game versions. Older files are in the list below.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
CatoAPI versions and loaders
1.0.4-beta-26.2
CatoAPI-Universal-26.2-1.0.4-beta.jar
22 Aug 2026
1.0.4-beta-26.1
CatoAPI-Universal-26.1-1.0.4-beta.jar
22 Aug 2026
1.0.4-beta-1.21.6
CatoAPI-Universal-1.21.6-1.0.4-beta.jar
22 Aug 2026
1.0.4-beta-1.21.2
CatoAPI-Universal-1.21.2-1.0.4-beta.jar
22 Aug 2026
1.0.4-beta-1.21.11
CatoAPI-Universal-1.21.11-1.0.4-beta.jar
22 Aug 2026
1.0.4-beta-1.21.1
CatoAPI-Universal-1.21.1-1.0.4-beta.jar
22 Aug 2026
1.0.4-beta-1.20.1
CatoAPI-Universal-1.20.1-1.0.4-beta.jar
22 Aug 2026
1.0.3-beta
CatoAPI-Universal-26.2-1.0.3-beta.jar
22 Aug 2026
1.0.3-beta
CatoAPI-Universal-26.1-1.0.3-beta.jar
22 Aug 2026
1.0.3-beta
CatoAPI-Universal-1.21.6-1.0.3-beta.jar
22 Aug 2026
1.0.3-beta
CatoAPI-Universal-1.21.2-1.0.3-beta.jar
22 Aug 2026
1.0.3-beta
CatoAPI-Universal-1.21.11-1.0.3-beta.jar
22 Aug 2026
Looking for an older file? The official Modrinth project page is in Resources.