🗣️Text To Speech

OpenAI's realistic text to speech model

TTS Models

GET /tts/list

List available TTS Models

Headers

Name	Value
Content-Type	application/json

Response

200

["tts-1", "tts-1-hd", ...]

400

{
  "error": "Invalid request"
}

TTS Voices

GET /tts/voices

List available TTS Voices

Headers

Name	Value
Content-Type	application/json

Response

200

["alloy", "echo", "fable", ...]

Create Speech

POST /tts/:model

Headers

Name	Value
Content-Type	application/json
Authorization	Bearer <token>

Body

Name	Type	Description	Default
input	string	Input text	none
voice	string	Voice	alloy
speed	number	Voice speed (0.25 - 4.0)	1.0

Response

200

{
  "data": "d2VsbF9oZWxsb190aGVyZV90Lm1lL3N5bmFwc2VfbGFicw....."
}

400

{
  "error": "Invalid request"
}

500

{
  "error": "Error during generation (TTS)"
}

Example

const res = await fetch('https://synapselabs.onrender.com/tts/tts-1-hd', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'Authorization': 'Bearer <your_api_key>'
  },
  body: JSON.stringify({
    input: 'hello',
    speed: 1.0,
    voice: 'alloy',
  }),
});

const data = await res.json();
const buf = Buffer.from(data.data, 'base64');
fs.writeFileSync('test.mp3', buf);