GET

/v1/schemas/fal/audio/fal-ai%2Finworld-tts

kind inputactivity audiohash 84fe4003…extracted Jul 6, 2026version currentsource upstream spec ↗

Request body

3 properties · 1 required · 0 $defs
propertytypedescriptionconstraints
text*stringThe text to synthesize into speech. Maximum 2000 characters.length ≤ 2000
voiceenumThe voice to use for synthesis.Loretta (en) | Darlene (en) | Marlene (en) | Hank (en) | Evelyn (en) | Celeste (en) · +107 more · default: "Craig (en)"
sample_rate_hertzenumThe sample rate in Hz for the output audio.8000 | 16000 | 24000 | 32000 | 40000 | 48000 · default: 48000

Validate a payload

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