mcp server
archform
Diagrams as code for AI assistants. An MCP server that renders, validates and converts Mermaid, PlantUML, Graphviz, D2 and more.
Set up
Runs on your computer. Pick your agent and operating system.
Before you start
- Node.js 20 or newer
{
"mcpServers": {
"archform": {
"command": "npx",
"args": [
"-y",
"@archform/mcp"
]
}
}
}same format Cursor, GitHub Copilot CLI, Junie, JetBrains AI Assistant, Augment (Auggie CLI), Factory Droid, Kiro, Devin CLI +12
Values in angle brackets are placeholders. Restart Claude Desktop after editing its config.Claude Desktop docs
README
synced Oct 26, 2026Archform
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 |
|---|---|
@archform/mcp | MCP server that renders and validates Mermaid, PlantUML, C4, Graphviz, D2, Structurizr, BPMN and Excalidraw diagrams |
Quick start
claude mcp add archform -- npx -y @archform/mcp
See 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.
Development
Requires Node.js 22+ and pnpm (corepack enable).
pnpm install
pnpm lint && pnpm typecheck && pnpm test && pnpm build
Releasing
Bump 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.