Composer – AI architect / MCP for software architecture diagrams
Hi everyone! I built Composer, which is a tool turns your ideas into architecture diagrams. You can also use MCP to turn your EXISTING codebase into a visual diagram! It connects to all possible tools using MCP (Claude Code, Codex, OpenCode, etc.) The goal was to make system design easier and to be able to draw out what I wanted to make before I started / to explain to others. Its currently live at usecomposer.com and free! I’d love feedback on whether it feels useful for real projects and where it breaks down. :) Thank you
Composer – AI architect / MCP for software architecture diagrams launched on April 3, 2026 with 8 votes, #1,409 of 21,248 launches that month and more than 75% of that year's launches.
What it does
Describe your architecture, connect your codebase, and watch it build. Composer is an AI-powered system design tool.
Pricing, as stated on its site
Free tier, paid plans — Composer is currently in public beta and free for all users with up to 5 diagrams and 10 AI operations per month. Paid plans are coming soon but pricing has not been announced yet.
checked September 2026 · prices change
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