intro

VUILABS VOICE API

Turn text into natural speech.

Build voiceovers, product narration, and conversational experiences with one project-scoped API key.

Start in 5 minutesRead the API reference

01QuickstartCreate an API key, send text, and save your first audio file.02Choose a voicePick the right voice, speed, output format, and request mode.03Ship with the APIUse synchronous or streaming generation in your product.

What you can build

Voiceovers and narrationProduct demos, videos, stories, and long-form content.

Conversational experiencesGenerate an assistant reply as audio, or stream it as it is produced.

Accessible productsRead content aloud, create notifications, or build phone and IVR flows.

The essentials

• Every request is scoped to an API key, project, rate limit, and billing account.
• New accounts receive 10,000 free TTS characters before paid balance is used.
• Use streaming generation when playback should begin before the complete audio file is available.

Start with a working request

Do not begin by tuning every optional field. Generate a short line with the default approved voice first, then make one adjustment at a time.