Step one
Your ElevenLabs key
Stay speaks in your voice, and that runs on your own ElevenLabs account. The key stays in this browser and is sent to nothing except Stay's own server, once per request. It is never stored.
Free account is fine. Get one here — no card needed.
Bringing your own Gemini key (optional)
Stay writes its lines with Gemini on a shared key. If it's busy, add your own free key and you'll skip the queue.