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MCP Tools

by Mr_Potato

MCP Tools is a Fabric mod that lets AI models read and change a running Minecraft world through the Model Context Protocol.

FabricServer required, client optionalMIT LicenseOpen source26.1 – 26.2

What it does

The mod adds MCP support so that AI clients can interact with the game. Models such as chatbots, local agents and coding assistants connect to the server and call tools to read and edit the world. The tools work with blocks, areas, biomes, heightmaps and light levels, and can run commands while reporting game state back to the model.

Clients that can speak MCP are supported, including Claude Code, Claude Desktop, VS Code extensions such as Cline and Roo, Antigravity, the Windsurf IDE and VSCodium, as well as direct HTTP connections and custom scripts. Fabric API is required, and the mod is open source under the MIT License.

Only the server has to run MCP Tools; players can join without installing it. Files are published for Fabric only, across the 26.1 – 26.2 range, with 1.0.1 for 26.2 as the latest build from 2026-08-11.

Key features

  1. Block reading

    Tools return the block at a position and the blocks inside a given area, so a model can inspect the terrain.

  2. Block editing

    Tools can set a single block, fill a region with a block, or break a block at a position.

  3. World context queries

    Tools report the biome, heightmap and light level at a position, giving a model context about the surroundings.

  4. Command execution

    A model can run game commands and receive the output, which lets it check the state of the world it is working in.

Compatibility

Latest build for each game version and loader.

26.21.0.1
26.1.21.0.1
26.1.11.0.1
26.11.0.1
ReleaseBetaAlphaNot available

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

Requirements

Dependencies declared by the latest file for each loader.

Required 1

Fabric APILightweight and modular API providing common hooks and intercompatibility measures utilized by mods using the Fabric toolchain.
Required

Use cases

Scripted builds

A model can plan a structure and place it block by block using the fill and set tools, then inspect the result.

Terrain inspection

Biome, heightmap and light queries let an agent describe the surroundings before it acts.

Agent-driven testing

Coding assistants can call the same tools that players use, which is useful for testing a world setup from outside the game.

Who it’s for: Server owners who want to connect an AI assistant or agent to a Fabric server, and developers building MCP clients or scripts that read and change a Minecraft world.

Questions

Does MCP Tools need Fabric API?

Yes. Fabric API is listed as a required dependency and must be installed alongside MCP Tools on the Fabric loader.

Do players need to install MCP Tools?

No. The server must run it, while players may leave it out. Players can join without it.

Which game versions does MCP Tools support?

Builds cover 26.1, 26.1.1, 26.1.2 and 26.2, and the latest Fabric file is 1.0.1 for 26.2.

In the catalog

MCP Tools is one of 7,555 Cursed mods on ModsFinder, and one of 4,235 Cursed mods for Fabric. 13,894 mods support Minecraft 26.2.

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What the author says

This mod adds MCP (Model Context Protocol) support for Minecraft, allowing AIs (eg, ChatBot, Agent, Local Models) to interact with the game, entities and players. 1. Claude (Code & Desktop), VS Code Extensions (eg, Cline, Roo)
Mr_Potato, on the Modrinth page

Official listing

Owner
Mr_Potato
Published
2026-08-11
Updated on Modrinth
2026-08-11
Facts verified
2026-10-15

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