Gearboy

Why we included this project

Gearboy is a cross-platform emulator for the Game Boy, Game Boy Color, and Super Game Boy, but the part that stands out is the Model Context Protocol server built into it. That server lets an AI coding agent inspect CPU registers, read and write memory, set breakpoints, step through SM83 disassembly, and capture screenshots of a live game, which turns the emulator into a controllable test harness for AI-assisted debugging and ROM hacking. It runs headless for servers and CI-style agents and supports both stdio and HTTP transports, so you can wire it into an existing agent setup rather than driving it by hand. If you work on retro game development, emulator testing, or tooling around the Game Boy, this gives your agents real visibility into the hardware instead of forcing them to work against static ROM dumps.