chatgpt-dev-mode. Scaffold and launch ChatGPT Developer Mode MCP servers in minutes. Runs via npx, generates OAuth or non-OAuth servers, required search/fetch tools, and JSON-RPC handlers. Built-ins: PKCE OAuth, Supabase auth, Fly.io deploy, dev scripts, tests, sample tools (search, fetch, analyze, generate). Production-ready defaults, clear docs. TypeScript-first.!