Renders and validates Excalidraw diagrams, returning an image and share link through Archform.
Renders and validates Mermaid diagram source, returning an image and share link through Archform.
Click on "Deploy Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type @ followed by the MCP server name and your instructions, e.g., "@Archform draw a C4 context diagram of a URL shortener and share the link"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
Diagrams as code for AI assistants.
This diagram was drawn by Archform. Connect it to your assistant and ask, for example, "Draw a C4 context diagram of a URL shortener."
This is the monorepo for the @archform npm scope.
Package | Description |
MCP server that renders and validates Mermaid, PlantUML, C4, Graphviz, D2, Structurizr, BPMN and Excalidraw diagrams |
claude mcp add archform -- npx -y @archform/mcpSee packages/mcp for Claude Desktop, Cursor, VS Code and ChatGPT setup.
By default diagram source is sent to the public kroki.io service for rendering. Set
KROKI_URLto a self-hosted Kroki to keep it private.
Related MCP server: UML MCP
Requires Node.js 22+ and pnpm (corepack enable).
pnpm install
pnpm lint && pnpm typecheck && pnpm test && pnpm buildBump version in both packages/mcp/package.json and packages/mcp/server.json in a pull request. When it merges to main, the Publish workflow publishes the new version to npm (trusted publishing, with provenance) and to the MCP Registry. Pushes that don't change the version publish nothing.
This server cannot be deployed
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