mGBA MCP server

This is a helper that connects your AI to the mGBA Game Boy Advance emulator running on your own computer. Once it is set up, you can ask your AI to look inside a game's memory, press buttons, grab a screenshot or save your progress. It is handy for people who like to tinker with old GBA games, hunt for cheat values, or test their own homebrew games.

What this MCP server does

You ask your AI something about the game running in mGBA, like what your health value is or what happens if you press Right. The AI uses this helper, which talks to a small script running inside mGBA. That script reads or writes the game's memory, presses buttons, or takes a picture of the screen. The result comes back to you as an answer, a list of numbers, or a saved image file.

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What you can do with it

• Read the game's memory at any address to find values like health or coins
• Write new values into memory to change things in the game
• Press GBA buttons like A, B, Start or the D-pad
• Advance the emulator a set number of frames to step through action
• Take a screenshot of the current game screen
• Save and load emulator states so you can try things and roll back
• Pause, resume or reset the running game

Try asking your AI

• “What game is loaded right now and how many frames have passed?”
• “Read the 32-bit value at address 0x03000000 and tell me what it is.”
• “Press Start, then A, then hold Right for 60 frames and take a screenshot.”
• “Save the current state to slot 1, then reset the game.”

What it gives back to you

You get back plain answers in the chat, like the game title, a number from memory, or a short confirmation that a button was pressed. Memory reads come back as values or lists of bytes. Screenshots are saved as PNG files on your computer, and save states are stored in a slot or a path you choose.

Before you start

Who it's for

Retro game fans, ROM hackers, and homebrew GBA developers who want to poke at a game with help from an AI.