How do I install Oracle Index?

Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. Download the .jar. Put it in the .minecraft/mods folder and launch that loader profile. Opens on CurseForge — not every file is mirrored on our own servers.

What Minecraft version does Oracle Index work with?

The listing gives Minecraft 1.21.1, 1.21. This is the version stated by the author or source site, not something we verified ourselves.

Home›Java›Mods›Oracle Index

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Oracle Index

by rearth · on CurseForge

A minecraft fabric / neoforge client-side documentation viewer mod, intended to be used with wikis alongside moddedmc.wiki

Which build do you need?

This mod ships a separate file for every mod loader and every version of the game. Pick both, then download — the wrong build installs fine and then does nothing in the game.

Mod loader

Mod loader Fabric2 builds
Mod loader NeoForge2 builds

Minecraft version

Minecraft 1.21.1Newest
Minecraft 1.21

Minecraft 1.21.1Newest
Minecraft 1.21

⬇ Download for 1.21.1 · Fabric ⬇ Download for 1.21 · Fabric ⬇ Download for 1.21.1 · NeoForge ⬇ Download for 1.21 · NeoForge

I don't know my version or loader

Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.

No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.

Open in MC Java Mods Get it on Google Play →

Tired of alt-tabbing to find information about mods? Oracle Index brings the wiki directly into your Minecraft world! This mod provides an in-game documentation viewer for both Neoforge and Fabric on Minecraft 1.21. It's designed with simplicity and compatibility in mind, using the same formatting and directory structure as ModdedMC.wiki. This means modders can create wiki content once and use it both in-game and online.

Key Features ✨

Seamless In-Game Documentation: Access comprehensive guides and information about supported mods directly in the game.
No Custom Books Needed: Open the Oracle Index with a customizable hotkey or directly from an item's tooltip.
Semantic Search included: With the press of a button, a smart search that understands the meaning of your queries can be opened up. Also supports math expressions!
Familiar Markdown Support: Uses a basic markdown parser and supports custom HTML tags, ensuring compatibility with ModdedMC.wiki content.
Item Linking: Define relevant items for each wiki page. Hover over the item and hold [ALT] to open the wiki page!
ModdedMC.wiki Compatibility: Leverage existing documentation created for ModdedMC.wiki. No need to rewrite anything! 🚀
Cross-Linking: Effortlessly navigate between pages and items within the wiki.
Visually Appealing & Responsive: Enjoy a modern Minecraft-inspired design, smooth scrolling, and responsive layouts that adapt to your screen size.
Easy to Use: Quick setup, so you can get to documenting fast!
Unlock System: Designate some pages (or folders) as hidden/obfuscated. They can then be unlocked at runtime.

How it Works ⚙️

Oracle Index parses Markdown content organized in a directory structure similar to ModdedMC.wiki. Simply place your Markdown files in the designated location (check the mod's configuration for the exact path), and Oracle Index will handle the rest!

Content can be included either via a mods resources or via a resource pack. An example of a resource pack is on github in the oracle index repo: https://github.com/Rearth/Oracle-Index/tree/26.1.2/example_resource_pack

Why Oracle? 🤔

Oracle Index bridges the gap between online documentation and in-game accessibility. It provides a convenient and intuitive way for players to learn about mods, recipes, and mechanics without interrupting their gameplay.

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft versions listed: 1.21.1, 1.21
How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
Where to get it: Opens on CurseForge — not every file is mirrored on our own servers.

Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.

Verified by MCModsHub

Ships as oracle_index-neoforge-0.5.0.jar — drop this file into the mods folder
Download size: 28.2 MB
Download link checked 9 Sept 2026 — working

These come from our own check of the pack file, not from the source page.

Explore more

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