Retrieve available TTS languages

July 4, 2025 (August 21, 2025)

HeyGen API has been decommissioned. Currently we do not have plans to re-release it and recommend switching to Mureka API for speech and music generation.

Table of contents

  1. Request Headers
  2. Query Parameters
  3. Responses
  4. Model
  5. Examples
  6. Try It

This endpoint retrieves a list of available text-to-speech languages from HeyGen.

https://api.useapi.net/v1/heygen/tts/languages?…

Request Headers 
Authorization: Bearer {API token}
Query Parameters
  • email is optional when only one account configured.
    However, if you have multiple accounts configured, this parameter becomes required.
Responses

  • 200 OK

    {
  "languages": [
    {
      "value": "en-US",
      "label": "English (United States)",
      "language": "English",
      "tag": "en-US",
      "locale": "en-US",
      "language_code": "en-US"
    },
    {
      "value": "en-GB",
      "label": "English (United Kingdom)",
      "language": "English",
      "tag": "en-GB",
      "locale": "en-GB",
      "language_code": "en-GB"
    },
    {
      "value": "es-ES",
      "label": "Spanish (Spain)",
      "language": "Spanish",
      "tag": "es-ES",
      "locale": "es-ES",
      "language_code": "es-ES"
    },
    {
      "value": "fr-FR",
      "label": "French (France)",
      "language": "French",
      "tag": "fr-FR",
      "locale": "fr-FR",
      "language_code": "fr-FR"
    }
  ]
}

  • 401 Unauthorized

    {
  "error": "Unauthorized",
  "code": 401
}
Model 
{ // TypeScript, all fields are optional
  languages: {
    value: string
    label: string
    language: string
    tag: string | null
    locale?: string
    language_code: string
  }[]
}
Examples 
  • curl "https://api.useapi.net/v1/heygen/tts/[email protected]" \
   -H "Accept: application/json" \
   -H "Authorization: Bearer …" 

  • const token = "API token";
const email = "Previously configured account email";
const apiUrl = `https://api.useapi.net/v1/heygen/tts/languages?email=${email}`; 
const response = await fetch(apiUrl, {
  headers: {
    "Authorization": `Bearer ${token}`,
  },
});
const result = await response.json();
console.log("response", {response, result});

  • import requests
token = "API token"
email = "Previously configured account email"
apiUrl = f"https://api.useapi.net/v1/heygen/tts/languages?email={email}"
headers = {
    "Authorization" : f"Bearer {token}"
}
response = requests.get(apiUrl, headers=headers)
print(response, response.json())
Try It