curl --request GET \
  --url https://supertoneapi.com/v1/voices \
  --header 'x-sup-api-key: <api-key>'

import requests

url = "https://supertoneapi.com/v1/voices"

headers = {"x-sup-api-key": "<api-key>"}

response = requests.get(url, headers=headers)

print(response.text)

const options = {method: 'GET', headers: {'x-sup-api-key': '<api-key>'}};

fetch('https://supertoneapi.com/v1/voices', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

package main

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

func main() {

	url := "https://supertoneapi.com/v1/voices"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("x-sup-api-key", "<api-key>")

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

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

	fmt.Println(string(body))

}

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://supertoneapi.com/v1/voices",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "x-sup-api-key: <api-key>"
  ],
]);

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

curl_close($curl);

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

HttpResponse<String> response = Unirest.get("https://supertoneapi.com/v1/voices")
  .header("x-sup-api-key", "<api-key>")
  .asString();

{
  "items": [
    {
      "voice_id": "<voice-id>",
      "name": "Agatha",
      "age": "young-adult",
      "gender": "female",
      "use_case": "narration",
      "use_cases": [
        "narration",
        "storytelling"
      ],
      "language": [
        "ar",
        "bg",
        "cs",
        "da",
        "de",
        "el",
        "en",
        "es",
        "et",
        "fi",
        "fr",
        "hi",
        "hu",
        "id",
        "it",
        "ja",
        "ko",
        "nl",
        "pl",
        "pt",
        "ro",
        "ru",
        "vi"
      ],
      "styles": [
        "kind-default",
        "normal",
        "serene"
      ],
      "models": [
        "sona_speech_1",
        "sona_speech_2",
        "sona_speech_2_flash",
        "supertonic_api_1",
        "supertonic_api_3"
      ],
      "description": "",
      "samples": [
        {
          "language": "ko",
          "style": "kind-default",
          "model": "supertonic_api_3",
          "url": "https://example.com/samples/sample-audio.wav"
        }
      ],
      "thumbnail_image_url": "https://example.com/thumbnails/voice-thumbnail.png"
    }
  ],
  "total": 150,
  "next_page_token": "some_opaque_token_string_representing_last_id"
}