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Gearboy MCP Server

local only

Gearboy MCP Server runs on your own machine — the client starts it, so there is no endpoint to ping. Last commit 17 Sep 2026.

MCP server for Gearboy Nintendo Game Boy / Game Boy Color emulator

Installs / week
not published
1205
Stars
7 open issues
17 Sep 2026
Last commit
from GitHub
GPL-3.0
License
C++

What the code does

We read the source, 23 h ago · rules 3dff92dd89df

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

    bool        ConfigDebugIsDebuggerPresent;   // = false          // Enable various tools calling IM_DEBUG_BREAK().
In the project's build, not in the package

Found in continuous integration, deployment or infrastructure files, or in a neighbouring package of the same monorepo. None of this is installed when you add the server: it describes how the project is built and released. We list it because a leaked key in a build pipeline is still a real problem, but it is not something this server does on your machine.

Builds a database query by concatenation .github/workflows/homebrew-tap.yml:61
      - name: Update Cask formula
        run: |
          cat > homebrew-tap/Casks/${{ env.NAME_LOWER }}.rb << EOF
…eway --user '"${MCP_GATEWAY_UID}"':'"${MCP_GATEWAY_GID}"' --group-add '"${DOCKER_SOCK_GID}"' -v '"${DOCKER_SOCK_PATH}"':/var/run/docker.sock -e MCP_GATEWAY_PORT -e MCP_GATEWAY_DOMAIN -e MCP_GATEWAY_API_KEY -e MCP_GATEWAY_PAYLOAD_DIR -e MCP_GATEWAY_PAYLOAD_SIZE_THRESHOLD -e DOCKER…

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Three servers free · no card

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Gearboy MCP Server — questions

Answers built from our own checks of this server.

Why is there no uptime for Gearboy MCP Server?
Gearboy MCP Server runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone.
Is Gearboy MCP Server open source?
Yes — it is published under the GPL-3.0 licence, written in C++, 1 205 stars on GitHub and 7 open issues. The source link is on this page, so you can read exactly what it does with your data before you connect it.