OpenAI's Codex can scaffold and edit web apps and sites. The output is HTML/JS you'll often want to share — privately, branded, on your domain rather than a vendor URL.
Share Codex output with drop
Add the drops MCP to Codex (codex mcp add drops -- npx -y drops-mcp) and it can publish straight to your domain. See the Codex integration.
FAQ
Does it work with any AI agent?
Yes. It's a CLI plus a SKILL.md and an MCP server, so Claude Code, Codex, Cursor, OpenCode, Gemini CLI — anything that runs a shell or speaks MCP — can use it.
Is it really open-source and self-hosted?
Yes — MIT licensed, and it runs on your own Vercel Blob + domain. No third party ever holds your content (it's encrypted client-side) or controls your URL.