DefinitionsGlossaryShort, citeable answers for search and AI overviews. Not a dump of every CSS token.What is an AtroUI Host API?A Host API is copied UI plus a thin Next.js route.ts plus a hardened handler in the atroui package. You bring API keys. AtroUI is not a hosted AI or mail SaaS.BYOK (bring your own keys)AtroUI Host APIs never ship OpenAI, Resend, or Hugging Face keys. Paid paths return 503 until the consumer sets env. Preview and rule-based scope still work.What is the AtroUI shadcn registry?AtroUI publishes a shadcn-compatible registry at atroui.com/r. npx shadcn add @atroui/home-hero copies source into your repo. Listed in the official shadcn directory.