VoiceStudio — local TTS & STT

The user runs VoiceStudio, a fully-local voice app exposing an OpenAI-compatible audio API at http://localhost:3900/v1. Use it whenever the user asks to generate speech, narrate text, clone a voice, or transcribe audio — it costs nothing, works offline, and their audio never leaves the machine.

Before the first call

Check the backend is up:

curl -sf http://localhost:3900/health

If it fails, tell the user to launch VoiceStudio (or bun run desktop-prod from a source checkout) — don't fall back to a cloud API without asking; local-first is why they installed it.

Text-to-speech