curl --location 'https://api.inworld.ai/tts/v1/voices?filter=language%3Den' \
--header "Authorization: Basic $INWORLD_API_KEY"

import requests

url = "https://api.inworld.ai/tts/v1/voices"
headers = {
    "Authorization": "Basic <api-key>"
}
params = {
    "filter": "language=en"
}

response = requests.get(url, headers=headers, params=params)
print(response.json())

const url = 'https://api.inworld.ai/tts/v1/voices?filter=language%3Den';

const response = await fetch(url, {
  headers: {
    'Authorization': 'Basic <api-key>',
  },
});

const data = await response.json();
console.log(data);

{
  "voices": [
    {
      "languages": [
        "en"
      ],
      "voiceId": "Alex",
      "displayName": "Alex",
      "isCustom": false,
      "description": "Energetic and expressive mid-range male voice, with a mildly nasal quality",
      "tags": [
        "male",
        "energetic",
        "expressive",
        "mid-range"
      ]
    },
    {
      "languages": [
        "en"
      ],
      "voiceId": "Ashley",
      "displayName": "Ashley",
      "isCustom": false,
      "description": "A warm, natural female voice",
      "tags": [
        "female",
        "warm",
        "natural"
      ]
    },
    {
      "languages": [
        "en"
      ],
      "voiceId": "Dennis",
      "displayName": "Dennis",
      "isCustom": false,
      "description": "Middle-aged man with a smooth, calm and friendly voice",
      "tags": [
        "male",
        "middle-aged",
        "smooth",
        "calm",
        "friendly"
      ]
    }
  ]
}

{
  "code": 3,
  "message": "Invalid language code: 'English'. Must be a 2-letter ISO 639-1 code (e.g., 'en', 'es', 'fr')",
  "details": []
}