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✓ VerifiedLibraries & compatibility

Monument Data Fix

by QWERTY770 · for Minecraft

API support for custom data fixers!

15KDownloads
16 mo agoLast updated
MITLicense
Fabric · NeoForgeLoaders

About Monument Data Fix

From Modrinth

API support for custom data fixers!

Monument Data Fix

A library that enables modders to register customized data fixers.

What is Data Fixer?

As Mojang said in the readme file, DataFixerUpper is "a set of utilities designed for incremental building, merging, and optimization of data transformations". It is created for converting the game data between different versions of the game.

What does Monument Data Fix do?

Monument Data Fix provides a set of APIs for modders to create customized data fixers. The mod by default provides data fixers for Sweet Potato Reborn and Xdi8Aho Mod, which allows you to upgrade a save in Minecraft 1.16-1.19 with Sweet Potato Mod to Minecraft 1.21+ with Sweet Potato Reborn, or upgrade a save in Minecraft 1.18.2 with Xdi8Aho Mod to Minecraft 1.21.4+ with Xdi8Aho Mod and Sweet Potato Reborn.

Note: In Minecraft 1.18.2, Xdi8Aho Mod was a combination of Sweet Potato Mod and the own content of Xdi8Aho Mod. However, Xdi8Aho Mod has already been separated into the two mods, and now Xdi8Aho Mod only contains the content of its own. Therefore, you need to install Xdi8Aho Mod and Sweet Potato Reborn at the same time in Minecraft 1.21.4+. Otherwise, the game would delete the old blocks which it could not recognize.

Do I need this mod?

For general players: If you don't need to upgrade a modded save, you don't need Monument Data Fix. If you have a modded save to upgrade, and the mod developer states that Monument Data Fix is needed as a dependency, you should install this mod.

For mod developers: If you would like to enable your mod saves to be upgraded, make a data fixer mod using Monument Data Fix as a dependency and point out "Monument Data Fix is needed when upgrading saves" in the mod description.

Currently, there isn't a program document for the mod. In order to add your custom data fixers, call top.qwerty770.monument.datafix.api.DataFixerRegistry$addDataFix(String name, CustomDataFixer dataFixer) or top.qwerty770.monument.datafix.api.DataFixerRegistry$addDataFix(String name, Function<DataFixerBuilder, DataFix> dataFixer) before net.minecraft.util.datafix.DataFixers$addFixers is called. If you have questions on the registry, refer to Monument Data Fix itself as an example, because it provides data fixers for two mods by default. You may submit issues on Github.

External Links

Highlights

From source data

Game versions

Supports 6 Minecraft versions, the newest being 1.21.5.

Loaders

Runs on Fabric and NeoForge.

Footprint

Rated a light load on a server.

What kind of mod it is

From the catalog
Listed on Modrinth as “Mods”

Libraries & compatibility

Foundations and fixes other mods build on. Usually installed because something else needs it.

Runs on your server

From source side support

Modrinth lists Monument Data Fix as required on the server. Check its Modrinth page to see whether players need it too.

Compatibility

Game
Minecraft
Loaders
FabricNeoForge
Runs on
Serverrequired on the server
Game versions
1.21.5 and 5 earlier

Verified at the source

  • ✓ModrinthOfficial listing, checked 2026-10-01Open ↗
  • ✓AuthorQWERTY770, as published on Modrinth
  • ✓LicenseMITFree

Monument Data Fix, answered

Generated from the mod’s own source data.

Do my players need to install Monument Data Fix?

Modrinth lists Monument Data Fix as required on the server. Check its Modrinth page to see whether players need it too.

Which loaders does it support?

Fabric and NeoForge.

Is it free?

Yes. Monument Data Fix is free to download from Modrinth. Its license is MIT.

How do I add it to my Nxeon server?

Use “Add to a server” on this page, or open NxLabs from your dashboard. We install it, restart your server and switch it on.

NxLabs

Run Monument Data Fix on a Minecraft server.

Deploy in about a minute from $4.20 a month, then add Monument Data Fix in one click.