Generate Drawings with LLMs via JavaFX

This MCP server enables large language models to make drawings using JavaFX primitives. It is implemented on top of Quarkus MCP and JavaFX, with its initial idea and implementation originating from a public gist by @konczdev. A demo video shows the server in action.

Use it when an agent needs to produce actual 2D drawings or visual output through JavaFX's drawing primitives, driven by an LLM. It is not packaged as a native executable: at the moment the server cannot be compiled to a native image because of its JavaFX dependencies, so it always runs on the JVM via jbang. Compiling it natively with GluonFX may be possible but is left as an open exercise, and the project welcomes issues or PRs on that front.

The server exposes JavaFX drawing primitives to an LLM through the MCP protocol, letting a model direct what gets drawn.

Install jbang first, then configure your MCP client to run the server as jbang jfx@quarkiverse/quarkus-mcp-servers. For Claude Desktop (or any client using the same mcp-cli-style config), add this to claude_desktop_config.json or server_config.json:

{
  "mcpServers": {
    "jfx": {
      "command": "jbang",
      "args": [
        "jfx@quarkiverse/quarkus-mcp-servers"
      ]
    }
  }
}

Developers experimenting with giving an LLM the ability to produce visual/drawing output through JavaFX, running the server via jbang rather than a compiled native binary.