API ReferenceTTS

Create speech

Synthesizes audio from the input text

Authentication

AuthorizationBearer
API key as bearer token in Authorization header

Request

This endpoint expects an object.
inputstringRequired<=4096 characters
Text to synthesize
modelstringRequired
TTS model identifier
voicestringRequired
Voice identifier
providerobjectOptional

Provider-specific passthrough configuration

response_formatenumOptionalDefaults to pcm
Audio output format
Allowed values:
speeddoubleOptional

Playback speed multiplier. Only used by models that support it (e.g. OpenAI TTS). Ignored by other providers.

Response

Audio bytes stream

Errors

400
Bad Request Error
401
Unauthorized Error
402
Payment Required Error
404
Not Found Error
429
Too Many Requests Error
500
Internal Server Error
502
Bad Gateway Error
503
Service Unavailable Error