Text-to-Speech (TTS)

cURL

curl --request POST \
  --url https://api.deapi.ai/api/v1/client/txt2audio \
  --header 'Accept: <accept>' \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: multipart/form-data' \
  --form 'text=A beautiful sunset over mountains' \
  --form model=Kokoro \
  --form lang=en-us \
  --form speed=1 \
  --form format=mp3 \
  --form sample_rate=24000 \
  --form mode=custom_voice \
  --form voice=af_sky \
  --form 'ref_audio=<string>' \
  --form 'ref_text=<string>' \
  --form 'instruct=<string>' \
  --form webhook_url=https://your-server.com/webhooks/deapi

import requests

url = "https://api.deapi.ai/api/v1/client/txt2audio"

payload = "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"text\"\r\n\r\nA beautiful sunset over mountains\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"model\"\r\n\r\nKokoro\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"lang\"\r\n\r\nen-us\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"speed\"\r\n\r\n1\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"format\"\r\n\r\nmp3\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"sample_rate\"\r\n\r\n24000\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"mode\"\r\n\r\ncustom_voice\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"voice\"\r\n\r\naf_sky\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"ref_audio\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"ref_text\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"instruct\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"webhook_url\"\r\n\r\nhttps://your-server.com/webhooks/deapi\r\n-----011000010111000001101001--"
headers = {
    "Accept": "<accept>",
    "Authorization": "Bearer <token>",
    "Content-Type": "multipart/form-data"
}

response = requests.post(url, data=payload, headers=headers)

print(response.text)

const form = new FormData();
form.append('text', 'A beautiful sunset over mountains');
form.append('model', 'Kokoro');
form.append('lang', 'en-us');
form.append('speed', '1');
form.append('format', 'mp3');
form.append('sample_rate', '24000');
form.append('mode', 'custom_voice');
form.append('voice', 'af_sky');
form.append('ref_audio', '<string>');
form.append('ref_text', '<string>');
form.append('instruct', '<string>');
form.append('webhook_url', 'https://your-server.com/webhooks/deapi');

const options = {method: 'POST', headers: {Accept: '<accept>', Authorization: 'Bearer <token>'}};

options.body = form;

fetch('https://api.deapi.ai/api/v1/client/txt2audio', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.deapi.ai/api/v1/client/txt2audio",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"text\"\r\n\r\nA beautiful sunset over mountains\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"model\"\r\n\r\nKokoro\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"lang\"\r\n\r\nen-us\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"speed\"\r\n\r\n1\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"format\"\r\n\r\nmp3\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"sample_rate\"\r\n\r\n24000\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"mode\"\r\n\r\ncustom_voice\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"voice\"\r\n\r\naf_sky\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"ref_audio\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"ref_text\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"instruct\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"webhook_url\"\r\n\r\nhttps://your-server.com/webhooks/deapi\r\n-----011000010111000001101001--",
  CURLOPT_HTTPHEADER => [
    "Accept: <accept>",
    "Authorization: Bearer <token>",
    "Content-Type: multipart/form-data"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.deapi.ai/api/v1/client/txt2audio"

	payload := strings.NewReader("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"text\"\r\n\r\nA beautiful sunset over mountains\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"model\"\r\n\r\nKokoro\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"lang\"\r\n\r\nen-us\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"speed\"\r\n\r\n1\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"format\"\r\n\r\nmp3\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"sample_rate\"\r\n\r\n24000\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"mode\"\r\n\r\ncustom_voice\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"voice\"\r\n\r\naf_sky\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"ref_audio\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"ref_text\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"instruct\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"webhook_url\"\r\n\r\nhttps://your-server.com/webhooks/deapi\r\n-----011000010111000001101001--")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Accept", "<accept>")
	req.Header.Add("Authorization", "Bearer <token>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.deapi.ai/api/v1/client/txt2audio")
  .header("Accept", "<accept>")
  .header("Authorization", "Bearer <token>")
  .body("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"text\"\r\n\r\nA beautiful sunset over mountains\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"model\"\r\n\r\nKokoro\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"lang\"\r\n\r\nen-us\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"speed\"\r\n\r\n1\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"format\"\r\n\r\nmp3\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"sample_rate\"\r\n\r\n24000\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"mode\"\r\n\r\ncustom_voice\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"voice\"\r\n\r\naf_sky\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"ref_audio\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"ref_text\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"instruct\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"webhook_url\"\r\n\r\nhttps://your-server.com/webhooks/deapi\r\n-----011000010111000001101001--")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.deapi.ai/api/v1/client/txt2audio")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Accept"] = '<accept>'
request["Authorization"] = 'Bearer <token>'
request.body = "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"text\"\r\n\r\nA beautiful sunset over mountains\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"model\"\r\n\r\nKokoro\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"lang\"\r\n\r\nen-us\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"speed\"\r\n\r\n1\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"format\"\r\n\r\nmp3\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"sample_rate\"\r\n\r\n24000\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"mode\"\r\n\r\ncustom_voice\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"voice\"\r\n\r\naf_sky\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"ref_audio\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"ref_text\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"instruct\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"webhook_url\"\r\n\r\nhttps://your-server.com/webhooks/deapi\r\n-----011000010111000001101001--"

response = http.request(request)
puts response.read_body

{
  "data": {
    "request_id": "c08a339c-73e5-4d67-a4d5-231302fbff9a"
  }
}

{
  "data": {},
  "message": "<string>",
  "errors": [
    "<unknown>"
  ],
  "statusCode": 123
}

{
  "data": {},
  "message": "<string>",
  "errors": [
    "<unknown>"
  ],
  "statusCode": 123
}

{
  "message": "The selected model does not support Text To Image.",
  "errors": {
    "model": [
      "The selected model does not support Text To Image."
    ]
  }
}

{
  "message": "Too Many Attempts."
}

POST

api

client

txt2audio

cURL

curl --request POST \
  --url https://api.deapi.ai/api/v1/client/txt2audio \
  --header 'Accept: <accept>' \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: multipart/form-data' \
  --form 'text=A beautiful sunset over mountains' \
  --form model=Kokoro \
  --form lang=en-us \
  --form speed=1 \
  --form format=mp3 \
  --form sample_rate=24000 \
  --form mode=custom_voice \
  --form voice=af_sky \
  --form 'ref_audio=<string>' \
  --form 'ref_text=<string>' \
  --form 'instruct=<string>' \
  --form webhook_url=https://your-server.com/webhooks/deapi

import requests

url = "https://api.deapi.ai/api/v1/client/txt2audio"

payload = "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"text\"\r\n\r\nA beautiful sunset over mountains\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"model\"\r\n\r\nKokoro\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"lang\"\r\n\r\nen-us\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"speed\"\r\n\r\n1\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"format\"\r\n\r\nmp3\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"sample_rate\"\r\n\r\n24000\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"mode\"\r\n\r\ncustom_voice\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"voice\"\r\n\r\naf_sky\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"ref_audio\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"ref_text\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"instruct\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"webhook_url\"\r\n\r\nhttps://your-server.com/webhooks/deapi\r\n-----011000010111000001101001--"
headers = {
    "Accept": "<accept>",
    "Authorization": "Bearer <token>",
    "Content-Type": "multipart/form-data"
}

response = requests.post(url, data=payload, headers=headers)

print(response.text)

const form = new FormData();
form.append('text', 'A beautiful sunset over mountains');
form.append('model', 'Kokoro');
form.append('lang', 'en-us');
form.append('speed', '1');
form.append('format', 'mp3');
form.append('sample_rate', '24000');
form.append('mode', 'custom_voice');
form.append('voice', 'af_sky');
form.append('ref_audio', '<string>');
form.append('ref_text', '<string>');
form.append('instruct', '<string>');
form.append('webhook_url', 'https://your-server.com/webhooks/deapi');

const options = {method: 'POST', headers: {Accept: '<accept>', Authorization: 'Bearer <token>'}};

options.body = form;

fetch('https://api.deapi.ai/api/v1/client/txt2audio', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.deapi.ai/api/v1/client/txt2audio",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"text\"\r\n\r\nA beautiful sunset over mountains\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"model\"\r\n\r\nKokoro\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"lang\"\r\n\r\nen-us\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"speed\"\r\n\r\n1\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"format\"\r\n\r\nmp3\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"sample_rate\"\r\n\r\n24000\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"mode\"\r\n\r\ncustom_voice\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"voice\"\r\n\r\naf_sky\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"ref_audio\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"ref_text\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"instruct\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"webhook_url\"\r\n\r\nhttps://your-server.com/webhooks/deapi\r\n-----011000010111000001101001--",
  CURLOPT_HTTPHEADER => [
    "Accept: <accept>",
    "Authorization: Bearer <token>",
    "Content-Type: multipart/form-data"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.deapi.ai/api/v1/client/txt2audio"

	payload := strings.NewReader("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"text\"\r\n\r\nA beautiful sunset over mountains\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"model\"\r\n\r\nKokoro\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"lang\"\r\n\r\nen-us\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"speed\"\r\n\r\n1\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"format\"\r\n\r\nmp3\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"sample_rate\"\r\n\r\n24000\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"mode\"\r\n\r\ncustom_voice\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"voice\"\r\n\r\naf_sky\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"ref_audio\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"ref_text\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"instruct\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"webhook_url\"\r\n\r\nhttps://your-server.com/webhooks/deapi\r\n-----011000010111000001101001--")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Accept", "<accept>")
	req.Header.Add("Authorization", "Bearer <token>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.deapi.ai/api/v1/client/txt2audio")
  .header("Accept", "<accept>")
  .header("Authorization", "Bearer <token>")
  .body("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"text\"\r\n\r\nA beautiful sunset over mountains\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"model\"\r\n\r\nKokoro\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"lang\"\r\n\r\nen-us\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"speed\"\r\n\r\n1\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"format\"\r\n\r\nmp3\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"sample_rate\"\r\n\r\n24000\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"mode\"\r\n\r\ncustom_voice\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"voice\"\r\n\r\naf_sky\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"ref_audio\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"ref_text\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"instruct\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"webhook_url\"\r\n\r\nhttps://your-server.com/webhooks/deapi\r\n-----011000010111000001101001--")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.deapi.ai/api/v1/client/txt2audio")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Accept"] = '<accept>'
request["Authorization"] = 'Bearer <token>'
request.body = "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"text\"\r\n\r\nA beautiful sunset over mountains\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"model\"\r\n\r\nKokoro\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"lang\"\r\n\r\nen-us\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"speed\"\r\n\r\n1\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"format\"\r\n\r\nmp3\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"sample_rate\"\r\n\r\n24000\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"mode\"\r\n\r\ncustom_voice\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"voice\"\r\n\r\naf_sky\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"ref_audio\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"ref_text\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"instruct\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"webhook_url\"\r\n\r\nhttps://your-server.com/webhooks/deapi\r\n-----011000010111000001101001--"

response = http.request(request)
puts response.read_body

{
  "data": {
    "request_id": "c08a339c-73e5-4d67-a4d5-231302fbff9a"
  }
}

{
  "data": {},
  "message": "<string>",
  "errors": [
    "<unknown>"
  ],
  "statusCode": 123
}

{
  "data": {},
  "message": "<string>",
  "errors": [
    "<unknown>"
  ],
  "statusCode": 123
}

{
  "message": "The selected model does not support Text To Image.",
  "errors": {
    "model": [
      "The selected model does not support Text To Image."
    ]
  }
}

{
  "message": "Too Many Attempts."
}

API v1 is deprecated. This version is no longer being developed — new endpoints, parameters and models are added to v2 only. Use the v2 endpoints to stay current: v2 API documentation.

Text-to-Speech converts text into natural-sounding audio. The endpoint supports three TTS modes via the mode parameter:

custom_voice (default) — Use a preset voice from the model’s voice library. Requires the voice parameter.
voice_clone — Clone a voice from a short reference audio clip. Requires the ref_audio parameter (3–10 seconds, max 15 MB). Optionally provide ref_text with a transcript of the reference audio for improved accuracy.
voice_design — Create a new voice from a natural language description. Requires the instruct parameter (e.g. "A warm female voice with a British accent").

Prerequisite: To ensure a successful request, you must first consult the Model Selection endpoint to identify a valid model slug, check specific limits and features, and verify available languages and voices.

Mode-specific required fields:

custom_voice — voice is required.
voice_clone — ref_audio is required. ref_text is optional but recommended.
voice_design — instruct is required.

If mode is omitted, the API defaults to custom_voice.

Authorizations

Authorization

string

header

required

Bearer authentication header of the form Bearer <token>, where <token> is your auth token.

Headers

enum<string>

default:application/json

required

Available options:

application/json

Body

multipart/form-data

Audio generation parameters. Supports three TTS modes: custom_voice (default, preset speakers), voice_clone (clone from reference audio), voice_design (create voice from description).

text

string

required

Text to be converted to speech

Example:

"A beautiful sunset over mountains"

model

string

required

The model to use for speech generation. Available models can be retrieved via the GET /api/v1/client/models endpoint.

Example:

"Kokoro"

lang

string

required

Language to be used during audio generation

Example:

"en-us"

speed

number

required

Generated audio speech speed

Example:

1

format

string

required

Audio output format

Example:

"mp3"

sample_rate

number

required

Sample rate of generated audio

Example:

24000

mode

enum<string> | null

TTS mode: custom_voice (default), voice_clone, or voice_design. Determines which fields are required.

Available options:

custom_voice,

voice_clone,

voice_design

Example:

"custom_voice"

voice

string | null

Name of the voice to be used. Required for custom_voice mode.

Example:

"af_sky"

ref_audio

file | null

Reference audio file for voice cloning. Supported formats: mp3, ogg, m4a. Max 15MB. Duration must be between 3-10 seconds (model-specific limits may apply). Required for voice_clone mode.

ref_text

string | null

Optional transcript of the reference audio for improved voice cloning accuracy.

instruct

string | null

Natural language voice description for voice_design mode (e.g. "A warm female voice with a British accent"), or style/emotion control in custom_voice mode.

webhook_url

string<uri> | null

Optional HTTPS URL to receive webhook notifications for job status changes (processing, completed, failed). Must be HTTPS. Max 2048 characters. See Webhook Documentation for payload structure and authentication details.

Maximum string length: 2048

Example:

"https://your-server.com/webhooks/deapi"

Response

ID of the inference request.

data

object

Information from success endpoint

Show child attributes

Overview

Generation

Analysis

Transformation

Prompt Enhancement

Utilities

Text-to-Speech (TTS)

Authorizations

Headers

Body

Response