
Modrinth · Minecraft mod
General Custom Data
Interface injecting API providing data components like functionality for custom data tags.
Quick answer
Which General Custom Data release should I use?
General Custom Data 2.0.0-beta.10 targets 26.1, 26.1.1, 26.1.2 with Fabric. Installation on the client is optional. Installation on the dedicated server is optional. All 2 required mods have matching files.
Where it goes
Is General Custom Data 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 General Custom Data 2.0.0-beta.10 need?
2.0.0-beta.10. Change the file and its required mods may change too.
Install Fishbone Trehalose, Generic Registry 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 General Custom Data without breaking your instance.
Built for General Custom Data 2.0.0-beta.10. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 2.0.0-beta.10. It targets 26.1, 26.1.1, 26.1.2 with Fabric; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install Fishbone Trehalose, Generic Registry 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 2.0.0-beta.10. It opens that exact file at the source.
About this project
What does General Custom Data add?
General Custom Data
General Custom Data is a library providing data components like functionality for custom data tags.
Currently not fully featured.
Command
/custom effect list [<entity>]Print a list of custom effects on theentity./custom effect give <entity> <effect> [<duration|infinite>] [<amplifier>]Add custom effect toentity./custom effect clear [<entity>] [<effect>]Remove custom effect fromentity.
Data Structure
custom_data: Parent tag.
|-
id: namespace:path.
|-
modifiers
| \-
A modifier.
| |-
attribute: namespace:path.
| |-
base: Any.
| |-
id: Any.
| |-
operation: add_value, add_multiplied_base, add_multiplied_total.
| \-
slot: mainhand, offhand, feet, legs, chest, head.
|-
rarity: Any.
\-
status_effects
\-
A status effect.
|-
id: namespace:path.
\-
episodes: Unordered episodes.
\-
An episode.
|-
amplifier: Any.
\-
duration: Any. In ticks.
data: Parent tag.
|-
explosion_radius: Any.
|-
fuse: Any.
|-
id: namespace:path.
|-
modifiers
| \-
A modifier.
| |-
attribute: namespace:path.
| |-
base: Any.
| |-
id: Any.
| |-
operation: add_value, add_multiplied_base, add_multiplied_total.
| \-
slot: mainhand, offhand, feet, legs, chest, head.
|-
owner: UUID.
\-
status_effects
\-
A status effect.
|-
id: namespace:path.
\-
episodes: Episodes on entities are descending ordered by whose amplifier, ticking simultaneously.
\-
An episode.
|-
amplifier: Any.
\-
duration: Any. In ticks.
Project description from Modrinth.
Pick your setup
General Custom Data by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.1.2
1 loader build26.1.1
1 loader build26.1
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
General Custom Data versions and loaders
2.0.0-beta.10
general-custom-data-fabric-26.1.2-2.0.0-beta.10.jar
21 May 2026
Looking for an older file? The official Modrinth project page is in Resources.