UML-MCP Diagram Server

Example Use Cases

• 1

  Generate UML class, sequence, activity, state, component, deployment or object diagrams from textual descriptions and return image files.

• 2

  Produce diagrams in alternative syntaxes (Mermaid, D2, Graphviz, ERD) and render them via Kroki or PlantUML into SVG/PNG/PDF outputs.

• 3

  Integrate diagram generation into developer tooling or editors (e.g., Cursor, Claude Desktop) via the MCP protocol and save outputs to a configured directory.

Description

UML-MCP is a diagram generation server exposing tools and resources over the MCP protocol to produce UML, Mermaid, D2, Graphviz and other diagram types. It supports multiple renderers (Kroki, PlantUML) and output formats (SVG, PNG, PDF), and can be integrated into editor tooling like Cursor or Claude Desktop. The server supplies templates, examples, and specific tools for common UML diagram types to streamline diagram creation from AI assistants and automated workflows.