Control and observe a running Minecraft: Java Edition game from AI agents over MCP (Fabric and NeoForge, 1.21.1+)
Let Claude and other MCP clients see, understand, and play Minecraft through 50+ tools.
Download on Modrinth · Installation · Tools · Security · Telemetry · Contributing
MCP Fabric is a local-first Minecraft mod and Model Context Protocol server that gives AI agents structured observation and controlled access to Minecraft. It works on both the client and dedicated servers across Minecraft 1.21.1–1.21.11 and 26.1–26.3, on Fabric and NeoForge.
- Play through natural language: move, look, navigate, mine, build, fight, and use inventory. - See the game: inspect blocks, entities, players, status, chat, events, and screenshots. - Operate servers: run commands, edit worlds, manage entities, and administer players. - Bring your own AI: works with Claude Desktop, Claude Code, and other MCP-compatible hosts. - Stay local by default: loopback-only HTTP bridge, bearer authentication, and capability gates. - No hidden telemetry: the current Fabric release sends no usage analytics.
1. Install Fabric Loader and Fabric API, or NeoForge. 2. Download the jar matching your Minecraft version and loader from Modrinth and place it in mods/. 3. Launch Minecraft once, then copy token from config/mcpfabric.config.json. 4. Build the MCP server with cd mcp-server && npm ci && npm run build. 5. Add it to your MCP client using the ready-to-copy examples.
[!CAUTION] MCP Fabric can grant an AI operator-level control. Keep the bridge on 127.0.0.1, keep authentication enabled, and disable capability groups you do not need.
From the project README.
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