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Game Boy EmulatorSAFE

mcp/mario-andreschak/game-boy-emulator
MCP server by mario-andreschak · Audited 2026-10-08
⚑ Report / re-scanSource ↗

A gameboy emulator for LLM's

Verdict
SAFE
Grade
B
Trust score
89 /100
Exposed tools
5 5r · 0w · 0d
Transport
sse · stdio
License
MIT
Stars
36
01

Overview

From the repository's own README, as read at the audited commit. Badges and raw HTML are left out.

[](https://smithery.ai/server/@mario-andreschak/mcp-gameboy)

Overview

A Model Context Protocol (MCP) server for serverboy, allowing LLMs to interact with a GameBoy emulator. Your LLM can...

  • Load ROMS
  • Press Keys
  • Look at the Gameboy Screen
  • skip frames

You can...

  • control the gameboy emulator using the @modelcontextprotocol/inspector
  • control the gameboy emulator (and upload ROMs) using a web-interface at http://localhost:3001/emulator
  • install the gameboy emulator in your favorite MCP-Client

Features

  • Supports both stdio and SSE transports
  • Provides tools for GameBoy controls (up, down, left, right, A, B, start, select)
  • Provides tools to load different ROMs
  • Provides tools to get the current screen
  • All tools return an ImageContent with the latest screen frame

Installation

Installing via Smithery

To install GameBoy Emulator Server for Claude Desktop automatically via Smithery:

npx -y @smithery/cli install @mario-andreschak/mcp-gameboy --client claude

Installing in FLUJO

  1. Click Add Server
  2. Copy & Paste Github URL into FLUJO
  3. Click Parse, Clone, Install, Build and Save.

Manual Installation

# Clone the repository
git clone https://github.com/yourusername/mcp-gameboy.git
cd mcp
Read from source at commit b2212c258597OBSERVED · 2026-10-08
02

Connect

Built from this server's own package name, version and transport as found in its source — not copied from anyone's documentation, so it cannot drift against a page we do not control.

claude-code
claude mcp add mcp-gameboy -- npx -y [email protected]
claude-desktop
{
  "mcpServers": {
    "mcp-gameboy": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ]
    }
  }
}
03

Exposed tools (5)

5 read · 0 write · 0 destructive.

ToolRiskDescription
get_screenreadGet the current GameBoy screen (advances one frame)
is_rom_loadedreadCheck if a ROM is currently loaded in the emulator
list_romsreadList all available GameBoy ROM files
load_romreadLoad a GameBoy ROM file
wait_framesreadWait for a specified number of frames
04

Trust audit

SAFEgrade B · trust 89/100 Nothing in the source contradicts what it says it does. Grade A is reserved for packages that have also passed the behavioural sandbox.

LayerWhat it checksResult
L0Provenance & inventoryWARN
L1Static analysis of the codePASS
L2Instruction surface (what it tells the agent)PASS
L3Class-specific surfacePASS
L4Behavioural (sandbox)SKIPPED

What the source does

Filesystem
none-observed
Network
declared (2 observation(s))
Shell
none-observed
Dependencies
not all pinned
Secrets in source
none-found

Findings (2)

MEDIUMInventory / provenance · inv.binary · CWE-1104
roms/dangan.gb
dangan.gb
Why it matters. a compiled or binary member cannot be reviewed from source
Fix. ship source, or explain the binary in the README
LOWSupply chain · supply.unpinned · CWE-829, CWE-1357
package.json
@modelcontextprotocol/sdk, @types/multer, accepts, acorn, acorn-walk, agent-base, arg, body-parser
Why it matters. 129 dependency range(s) float
Fix. pin exact versions or ship a lockfile

Gates applied: no_behavioural_pass.

Audited 2026-10-08 · audit v0.4.1 · source sha b2212c258597full audit observations/trust-audit/mcp-server/mario-andreschak__game-boy-emulator.json · Report an issue / request a re-scan
05

Audit history

Every audit this server has had. A grade with a past is a grade somebody is still checking.

DateSourceVerdictGradeScoreChange
2026-10-08b2212c258597SAFEB89first audit
06

Questions

What is the Game Boy Emulator MCP server?

A gameboy emulator for LLM's

What tools does Game Boy Emulator expose?

5 in total: 5 read-only, 0 that write, and 0 that can delete or overwrite. Every one is listed on this page with its risk.

Is Game Boy Emulator safe to connect to an agent?

The audit found nothing in the source that contradicts what it says it does, and graded it B (89/100). Grade A is held back for packages that have also passed a sandboxed behavioural run, which is why a clean server reads B.

What credentials does Game Boy Emulator need?

No credential environment variables were found in its source, so it appears to need none.

How does Game Boy Emulator run?

It speaks sse and stdio, so it runs as a local process your client starts. It is published on npm as mcp-gameboy at 1.0.0.

How current is this page?

The grade is for one exact copy of the source (b2212c258597), read on 2026-10-08. The repository is watched and re-audited when it changes.

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