Nautex is a specs IDE that sits between product thinking and AI coding agents. Drop in voice notes, screenshots, or rough feature ideas and Nautex converts them into structured requirements, a file-level implementation map, and an implementation plan grounded by targeted web search of feasible stacks and libraries. The output is then handed to your coding agent — Claude Code, Cursor, OpenAI Codex, Gemini CLI, or any MCP-compatible agent — as scoped, ownership-tagged tasks.

The project is open about its workflow (an MCP server lives on GitHub under hmldns/nautex) and is positioned as the Architect / Technical PM layer for vibe-coding workflows. Pricing is freemium: a Free tier for one project, a Pro plan at $20/month for unlimited projects, and a Pro+ plan at $100/month for ten times the capacity.