Supertonic TTS

High-quality text-to-speech powered by text-generator.io Supertonic and Kokoro voices. Natural-sounding speech synthesis with language, speed, and step controls.

$0.10 per 100 characters

Parameters

Parameter	Type	Required	Default	Description
text	string	required	—	Text to convert to speech
voice	string	optional	—	Voice ID to use. M1-M5/F1-F5 use Supertonic; Kokoro voices such as af_nicole are still supported.Options: M1, M2, M3, M4, M5, F1, F2, F3, F4, F5, af_nicole, af_sarah, af_bella, am_adam, am_michael, bf_emma, bf_isabella, bm_george, bm_lewis
language	string	optional	en	Supertonic language code. Kokoro derives language from the voice.Options: en, ko, ja, ar, bg, cs, da, de, el, es, et, fi, fr, hi, hr, hu, id, it, lt, lv, nl, pl, pt, ro, ru, sk, sl, sv, tr, uk, vi
speed	float	optional	1	Speech speed multiplier (0.5 = half speed, 2.0 = double speed)
steps	int	optional	4	Supertonic synthesis steps

Example Request

curl -X POST https://cutedsl.cc/api/service \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
    "service": "tts",
    "text": "Hello! Welcome to CuteDSL.",
    "voice": "M1",
    "language": "en",
    "speed": 1.0,
    "steps": 4
  }'

Example Response

{
  "result": {
    "audio_base64": "<base64-encoded audio>",
    "format": "wav",
    "voice": "M1",
    "language": "en",
    "characters": 25
  },
  "credits_used": 26,
  "credits_remain": 49974,
  "usd_equivalent": 0.026
}

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