Stay in control — install frametrue

A diagram that stays alive as your code changes. Your API keys, your tokens — the backend stores diagrams and computes layout, no server-side inference, $0 to us.

Run in your terminal:

claude mcp add schema-diagramming -- npx -y frametrue-mcp

That's it. Restart Claude Code to activate the server, then tell your agent:"Read my codebase and draw the modules and data flow as a flowchart."Every diagram element is addressable — update a node later and the change persists.

No Docker. Your tokens.

✓BYO tokens — frametrue performs zero server-side LLM inference. The agent runs entirely on your API keys. Founder inference cost: $0.
✓No Docker required — uses PGlite (file-backed WASM Postgres) for local development. No install beyond Node and pnpm.
✓Self-hosted — your diagrams live on your machine. No account required, no data leaves your network.
✓Stable, addressable elements — every node and edge has a persistent ID. "Update node X" or "add a department under Y" actually persists across sessions.

Prerequisites

Node.js 22 LTS —nodejs.org
pnpm 9 — npm install -g pnpm
Claude Code —claude.ai/code(or any stdio MCP client)

Already running locally?

View diagrams at the hosted canvas — or open http://localhost:5173 after starting pnpm dev in apps/web.

Try the app