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AI Tooltip

by Arthurus36

AI Tooltip shows a short AI-written description of the block or entity under the crosshair, using Google's Gemini 2.5 Flash model.

FabricNeoForgeClient-side onlyAll rights reserved1.21.1 – 1.21.11

What it does

When a player looks at a block entity, a tooltip appears just below the crosshair. The text comes from Gemini 2.5 Flash, which writes a factual two or three sentence description of the object. The tooltip also shows the item icon and the mod ID that registers the block or entity, so a player can tell where it comes from.

The tooltip starts as one compact summary line so the screen stays uncluttered. Holding the ALT key expands the box to show the full paragraph. Each unique block or entity is queried once and the response is kept in memory, so looking at the same chest twice does not spend another API request. The mod is client-side only, so servers run without it and players join without installing anything.

Setup has three parts: place the mod file in the mods folder, start the game one time so the configuration file is created, and then enter a Gemini API key inside that file. Files are published for Fabric and NeoForge, with builds for 1.21.1 and 1.21.11, and the code is under All rights reserved.

Key features

  1. Gemini-written descriptions

    A two or three sentence factual description is generated for each block entity the player looks at.

  2. Native-looking HUD tooltip

    The tooltip is drawn right below the crosshair in the game's own tooltip style.

  3. Compact and expanded views

    A single summary line appears by default, and holding ALT opens the full paragraph.

  4. Cached API queries

    Each unique block or entity is queried once and its response kept in memory, which limits repeat requests.

Compatibility

Latest build for each game version and loader.

1.21.111.0.3Not available
1.21.1Not available1.0.1
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Questions

Does AI Tooltip need to be installed on the server?

No. The mod is client-side only, so only the player's client needs it, and servers can run without it.

What does AI Tooltip require to work?

A Gemini API key is needed. The key is added in the mod's configuration file, which is created the first time Minecraft launches with the mod installed.

Which loaders and versions does AI Tooltip support?

Builds exist for Fabric and NeoForge. The files target 1.21.1 and 1.21.11, with the latest Fabric file for 1.21.11 and the latest NeoForge file for 1.21.1.

More from Arthurus36

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What the author says

AI Tooltip is a simple, polished client-side mod for NeoForge 1.21.1 that integrates Google's Gemini 2.5 Flash AI directly into your Minecraft HUD!
Arthurus36, on the Modrinth page

Official listing

Owner
Arthurus36
Published
2026-04-15
Updated on Modrinth
2026-04-15
Facts verified
2026-10-15