Composer
AI architect / MCP for software architecture diagrams
Details
- External ID
- 47622289
- Source
- HN
- Company
- —
- Product
- Composer
- Website domain
- usecomposer.com
- Launched
- April 3, 2026
- Cohort
- —
- Upvotes
- 8
- Upvotes percentile
- 0.4813624678663239
- Tags
- —
- Fetched at
- Sept. 7, 2026, 9:26 p.m.
- Updated at
- Sept. 7, 2026, 9:26 p.m.
Description
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
Enrichment
- Theme
- ai coding agents and tooling
- Vertical
- Horizontal
- Function
- Agent / copilot
- Audience
- Developer
- AI stance
- AI-native
- Project type
- Commercial product
- Normalized one-liner
- ai-powered software architecture diagram generation
- Manually corrected
- False
Could you build this?
Yes The core application parses code/prompts via LLM or MCP protocol and visualizes the structure using standard diagramming libraries (e.g., Mermaid.js, React Flow, or Excalidraw).
Discussion
10 comments analyzed.
Concerns raised: Too many questions required before completing a diagram, Complexity with large numbers of nodes
Feature requests: Sub-graphs for multi-service applications with linking between them, Different levels of complexity
Competitors
Other products that read as similar to this one — 147 launches clear the similarity bar, closest 8 shown.
Attention rank: #74 of 148 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 150 days after the earliest competitor.
- Modern C++ Build Tools for Module Feature · hn · 2026-08-08 · 8 upvotes · similarity 0.45
- SpecMind · hn · 2025-11-11 · 8 upvotes · similarity 0.45
- AI Architecture Generator · ph · 2026-09-10 · 1 upvotes · similarity 0.44
- Integrated Architecture Environment · ph · 2026-09-18 · 1 upvotes · similarity 0.44
- ShevtoneAudio Orchestrator · hn · 2026-08-30 · 6 upvotes · similarity 0.44
- Cogram Studio · hn · 2026-08-30 · 6 upvotes · similarity 0.43
- beyond-entity · github · 2026-09-10 · 10 upvotes · similarity 0.42
- Vellum, the best diagram editor you'll ever use · hn · 2026-09-21 · 25 upvotes · similarity 0.42
Other launches for this product
- No other launches for this product.
Same idea, different domain
Nobody's really built a agent / copilot tool for Agriculture yet.