GET

/v1/schemas/fal/audio/async%2Ftts-pro%2Fv1.0

kind inputactivity audiohash 6cabd6ce…extracted Jul 6, 2026version currentsource upstream spec ↗

Request body

4 properties · 2 required · 2 $defs
propertytypedescriptionconstraints
transcript*stringText to convert to speech.
voice*VoiceVoice to use for synthesis.
output_formatOutputFormatAudio output configuration.
languageenumForce synthesis in a specific language (ISO 639-1).en | fr | es | de | it | pt · nullable

Validate a payload

before you spend tokens
shell
$ curl -X POST https://modelschemas.com/v1/validate \
    -d '{"provider":"fal","endpointId":"async/tts-pro/v1.0","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}