ModsFinder

Spitball

by IvvyDevMC

Spitball is a Fabric server mod that adds an AI assistant answering player questions about the game, running locally through Ollama.

FabricServer-side onlyApache License 2.0Open source1.21.4

What it does

The assistant runs on the server and is configured through its settings. It uses a local Ollama installation to produce answers, so requests stay on the server host rather than going to an external service. The additionalInfo setting lets a server owner supply server-specific details, which the assistant uses to give context-aware answers about rules, locations and conventions.

Spitball is an advisory tool. It offers in-game tips and explanations about game rules and gameplay, and it does not execute commands or alter game state. Built on a system prompt and a chosen model, it includes Minecraft-specific content moderation. The project is open source under the Apache License 2.0, with public source code and an issue tracker.

The mod is installed on the server only, and players join without any client-side changes. It is published for Fabric and Minecraft 1.21.4, with version 1.0.0 as the latest file, dated 2025-02-28.

Key features

  1. Local AI assistant

    Answers come from a model served by Ollama on the same machine, so the server keeps its own AI backend.

  2. Server-specific context

    The additionalInfo setting feeds server-specific information into the assistant, so its answers fit that server's rules.

  3. In-game tips

    The assistant gives gameplay tips and explanations about game rules when players ask questions in chat.

  4. Advisory only

    The assistant does not run commands or change the game state; it only supplies information and suggestions.

  5. Configurable assistant

    Model choice, system prompt and other options can be changed in the configuration to suit the server.

Compatibility

Latest build for each game version and loader.

1.21.41.0.0
ReleaseBetaAlphaNot available

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

Use cases

Who it’s for: Server owners who run Fabric 1.21.4 and want a locally hosted assistant for player questions. Installing Ollama on the server host is needed before the assistant can answer.

How it compares

Full comparison

Ollama MC is client-side only, open source under the GNU General Public License v2.0 only, and published for Fabric 1.21.1 – 1.21.11, so it runs on the player's side rather than the server. OxAI is also client-side only and open source under the GNU General Public License v3.0 only, with files for Fabric and Quilt across 1.21.10 – 26.2. Spitball runs on the server, which is the opposite placement.

ModLoadersGame versionsEnvironmentUpdated
SpitballFabric1.21.4Server-side only2025-02-28
Ollama MCFabric1.21.1 – 1.21.11Client-side only2026-02-28
OxAIFabric and Quilt1.21.10 – 26.2Client-side only2026-07-26

Questions

Does Spitball need Ollama installed?

Yes. The assistant runs a model locally through Ollama, so Ollama must be available on the server.

Does Spitball need to be installed on player clients?

No. Only the server needs it, and players join without installing anything.

Can the assistant change the world or run commands?

No. The assistant is advisory and does not execute commands or alter game states.

In the catalog

Spitball is one of 5,392 Social mods on ModsFinder, and one of 4,084 Social mods for Fabric. 17,979 mods support Minecraft 1.21.4.

Social mods5,392Fabric modsMods for 1.21.417,979

Similar mods

Simple Voice Chat1.8.8 – 26.3No Chat Reports1.19 – 26.3Chat Heads1.16 – 26.3Essential Mod1.8.9 – 26.3More Chat History1.16.5 – 26.3e4mc1.17 – 26.3

Official listing

Owner
IvvyDevMC
Published
2025-02-28
Updated on Modrinth
2025-02-28
Facts verified
2026-10-15

Tags

ManagementSocialUtility
Open on ModrinthCompare