GET

/v1/schemas/fal/audio/fal-ai/inworld-tts

kind inputactivity audiohash 33c08a1e…extracted Oct 9, 2026version currentsource upstream spec ↗
fieldrecorded source
schemaSource linked above.

upstream-spec

Source trace
76398cb138a3f1447ca6b3232ed3e6626182a103eae0d0b9e570d076b3decb83
{
  "fetchedAt": 1791522002,
  "extractorVersion": "1",
  "verifiedAt": null
}

Request body

4 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
enable_safety_checkerbooleanAuthorized callers may set false to request relaxed screening.default: true

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", …}]}