Upgraded and improved, Nerdy's New Curios API plugin introduces new mod elements to MCreator that allow for creating Curios compatible slots and baubles that can provide both visual model rendering and functionality.
While Curios API must always be enabled in the workspace, it does not become a required dependency, remaining completely optional. When Curios is not loaded alongside your mod, your baubles only lose their Curios functionality and your mod is able to be loaded alone.
Java plugins must be enabled for this plugin to load
How to use?
First of all, despite being optional when loading the mod, Curios API must be enabled in your workspace so the Curios code can compile. You will need to do this in workspace settings.

You can then create a curios bauble and select the item element you want to turn into a bauble.

To render a model when equipping the bauble, you will need to make a java model the same way you would for an armor, and select the pieces so they can match the movement of the player model

Showcase

With the curios slot mod element, you can also create new slots for your baubles not included in curios. The texture should match the size of the slot. If not, it will be stretched and resized to fit.
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Changelog
v1.1.1
-Fixed baubles always adding slots even if the option is not selected
v1.1
-Ported to MCreator 2025.3
-No 1.21.8 support as Curios API has not been updated to that version
v1.0
-Plugin rewrite for 2025.2
-Old legacy versions of the plugin are not compatible with this version
Legacy versions archive
Old v4.5.1 for 2023.1
Old v4.6 for 2023.2
Old v4.7 for 2023.3
Old v4.9 for 2023.4
Old v5.0 for 2024.1
Old v5.2 for 2024.2Comments
I have found a temporary solution. You can fix that manually. After exporting the mod open the .jar file and go to (...).jar\data\curios\tags\items folder. In each file remove the "null" line and the comma in the previous line. It works in my case.
This means however, that you have to do that each time you export your mod untill the bug will be fixed
Theres an issue with the "translate model pose while sneaking", where (at least with the head slot), the pivot seems to be off, also when having multiple head pieces in the slot, they all offset pivots differently when sneaking
(first one will be offset by 1 upwards, then a second one will be offset by 2 downwards, and so on)
Hello I am new to coding and mod development but I'm trying my first mod I have made a 2d model of the curio I want and have made the modded item and when I have it in game it doesn't show up on the player if there a way to get a 2d model to render on the player or will I have to make a 3d model of what im trying to do


I've found an issue in 5.1 that breaks the curio slot tags. I've added a GitHub issue entry, where I've described the problem, and my temporary solution to overcome the bug.
https://github.com/NerdyPuzzle/Curios-API-plugin-MCreator/issues/4