funplay-unreal-mcp

funplay-unreal-mcp (stdio bridge)

A tiny, dependency-free stdio ⇄ HTTP bridge that connects MCP clients (Claude Code, Cursor, VS Code, Codex, …) to the Funplay MCP server running inside the Unreal Editor. All tools and logic live in the editor plugin; this package just forwards JSON-RPC messages.

Usage

funplay-unreal-mcp --url http://127.0.0.1:8765/ --token <token>

or via environment variables:

FUNPLAY_UNREAL_MCP_URL=http://127.0.0.1:8765/ \
FUNPLAY_UNREAL_MCP_TOKEN=<token> \
funplay-unreal-mcp

Get the endpoint and token from the Unreal editor: Tools → Funplay MCP → Log Endpoint + Token (printed to the Output Log).

MCP client config

{
  "mcpServers": {
    "funplay-unreal": {
      "command": "npx",
      "args": ["-y", "funplay-unreal-mcp"],
      "env": {
        "FUNPLAY_UNREAL_MCP_URL": "http://127.0.0.1:8765/",
        "FUNPLAY_UNREAL_MCP_TOKEN": "<token from the Funplay MCP menu>"
      }
    }
  }
}

The client launches this bridge over stdio; the bridge talks HTTP to the editor. Requires Node.js ≥ 18.

License

MIT — see LICENSE.