Using nicegui as a PlantUML frontend, you can deploy PlantUML on an intranet. It's a nicegui demo project with an added MCP (Model Context Protocol) server that exposes PlantUML functionality to AI assistants. Plantuml jar version: plantuml-1.2025.3.jar Features Web Interface - Interactive PlantUML editor with live preview - Save and load diagrams - Responsive UI with resizable panels MCP Server - Generate PlantUML diagrams in SVG or PNG format - Validate PlantUML code with detailed error messages Usage: With Docker Then you can access: - Web interface: http://127.0.0.1:8080 - MCP server: http://127.0.0.1:8765/sse Without Docker The start script will launch: 1. PlantUML server on port 8000 2. Web interface on port 8080 3. MCP server on port 8765 Connecting to the MCP Server You can connect to the MCP server using any MCP client, such as Claude Desktop: 1. Open Claude Desktop 2. Go to Settings > MCP Servers 3. Add a new server with the URL: http://localhost:8765/sse 4. Restart Claude Desktop Testing the MCP Server A test client is provided to verify the MCP server functionality: Available MCP Tools - generate_plantuml_image: Generate a diagram image from PlantUML code - validate_plantuml_syntax: Validate PlantUML code and return validation result ref Home · zauberzeug/nicegui Wiki How to use nicegui for beginners? · zauberzeug/nicegui · Discussion #1486 Nicegui example and suggestions · zauberzeug/nicegui · Discussion #1778 NiceGUI syejing/nicegui-reference-cn: NiceGUI 中文版本文档 (1) Use NiceGUI to watch images and do it from the COMMAND LINE! - YouTube