MiSTerClaw MCP Server

@catallo

Basic information

About MiSTerClaw MCP Server

MCP remote control for MiSTer-FPGA. Launch games, search ROMs, take screenshots, auto-discover 70+ systems, manage Tailscale VPN. Written in Go, zero dependencies.

MiSTerClaw MCP Server config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "misterclaw": {
      "command": "misterclaw-mcp",
      "args": [
        "--host",
        "your-mister-ip"
      ]
    }
  }
}

MiSTerClaw MCP Server tools

Tool list not available yet

This listing does not currently have a tool list to display. This does not mean the server has no tools; check its documentation for supported capabilities.

We auto-extract tools from the README. The maintainer can list them under a ## Tools heading to populate this section.

Overview

What is MiSTerClaw?

MiSTerClaw is the first MCP server for MiSTer-FPGA, enabling any AI agent (Claude, ChatGPT, Cursor, etc.) to control a MiSTer over the network. It uses the Model Context Protocol (MCP) standard and includes a CLI client for non-MCP systems.

How to use MiSTerClaw?

Configure the misterclaw-mcp binary in your MCP client (e.g., Claude Desktop or Cursor) by adding a JSON entry specifying the binary path and --host argument pointing to your MiSTer. For systems without MCP, use the misterclaw-send CLI client with commands such as search, launch, systems, or screenshot.

Key features of MiSTerClaw

Launch games by search or file path
Search ROM library across all systems
Take screenshots (returns PNG)
List all systems with ROM counts
View system info (hostname, IP, temp, RAM, disks, uptime)
Manage Tailscale VPN for secure remote access

Use cases of MiSTerClaw

Ask your AI agent to launch a specific game from your ROM library
Search for available games by name or system
Monitor system status and take screenshots remotely
Set up Tailscale VPN for encrypted access from anywhere
List all installed systems and their ROM counts

Frequently asked questions

What tools does MiSTerClaw expose to AI agents?

It provides eight MCP tools: `mister_status`, `mister_launch`, `mister_search`, `mister_systems`, `mister_screenshot`, `mister_info`, `mister_tailscale`, and `mister_shell`.

What are the security considerations?

Do not expose port 9900 to the internet — the ClawExec protocol has no authentication or encryption. Use Tailscale VPN for secure remote access, or keep it on your local network only.

What binaries are included and where do they run?

Three binaries: `misterclaw` (server, runs on MiSTer ARM7), `misterclaw-send` (CLI client, runs anywhere), and `misterclaw-mcp` (MCP server, runs on your machine to bridge agents to MiSTer).

How does MiSTerClaw discover systems?

It auto-detects all systems by scanning ROM folders, installed cores, and MGL files at startup. No manual configuration is needed, and results are cached in memory.

What protocol does MiSTerClaw use for communication?

The MCP server and CLI client communicate with the MiSTer over the ClawExec protocol, which is newline-delimited JSON over TCP on port 9900.

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