ResourcesIntegrationsVoices (Text-to-speech)

WellSaid

Use WellSaid Labs’ text-to-speech voices for your Vapi voice agent.

WellSaid is a text-to-speech provider you can use for your voice agent’s voice. Connect WellSaid to use its voices on a Vapi assistant. This page covers what WellSaid is and how to select a voice.

What is WellSaid

WellSaid Labs is a text-to-speech provider that produces studio-quality synthetic voices. On Vapi, you select a WellSaid voice for an assistant.

You can use WellSaid through Vapi’s default integration, or use your own WellSaid account by connecting it in Integrations.

Text-to-speech

Set voice.provider to wellsaid, voice.model to a WellSaid model (caruso or legacy), and voice.voiceId to a voice. WellSaid offers many voices, you can browse and copy a voice’s ID from the Voice Library.

$curl -X PATCH "https://api.vapi.ai/assistant/ASSISTANT_ID" \
>  -H "Authorization: Bearer $VAPI_API_KEY" \
>  -H "Content-Type: application/json" \
>  -d '{
>    "voice": { "provider": "wellsaid", "model": "caruso", "voiceId": "3" }
>  }'

For additional API configuration options, review the WellSaidVoice fields in the Create Assistant API reference.

Voices

Compare every text-to-speech provider Vapi supports.