Minecraft Input/Output (MCio)

MCio mod | mcio_ctrl | Documentation | Discord

MCio is a Fabric mod that exposes a network interface to Minecraft for AI research. It accepts keyboard/mouse input and sends back video frames and game state over ZeroMQ.

Features

• Python library (mcio_ctrl) with Gymnasium environments
• Faster than real-time performance (>13x on an M3 laptop)
• Works with performance mods like Sodium
• Supports resource packs for varied training environments
• Connect/reconnect agents without restarting Minecraft
• Decoupled ZMQ protocol for easy integration
• Synchronous mode for fast training
• Asynchronous mode for real-time human/AI interaction
• Headless mode with GPU acceleration
• VPT and STEVE-1 support on modern Minecraft with Sodium

Links

• Documentation / Wiki
• MCio mod (Modrinth)
• mcio_ctrl (PyPI)