Vapi Synthesize

Vapi custom TTS webhook.

With message.call.id: clause POSTs of one agent turn share a TTS session (KV continuation). Without it (test harness, non-Vapi callers): a stateless one-shot synthesis.

post/vapi/synthesize

Request

Query parameters

voice_idstring nullable
model_idstring nullable

Headers

x-voice-idstring nullable

Request body

Response

Successful Response

unknown required

Changes

No recorded changes to this operation across all 17 revisions of this API.