accords-library.com/public/local-data/languages.json

{
  "languages": {
    "data": [
      { "id": "1", "attributes": { "name": "French", "code": "fr", "localized_name": "Français" } },
      { "id": "2", "attributes": { "name": "English", "code": "en", "localized_name": "English" } },
      { "id": "3", "attributes": { "name": "Japanese", "code": "ja", "localized_name": "日本語" } },
      { "id": "4", "attributes": { "name": "Spanish", "code": "es", "localized_name": "Español" } },
      {
        "id": "6",
        "attributes": {
          "name": "Portuguese (Brazil)",
          "code": "pt-br",
          "localized_name": "Português (Brasil)"
        }
      },
      { "id": "8", "attributes": { "name": "German", "code": "de", "localized_name": "Deutsch" } },
      {
        "id": "9",
        "attributes": { "name": "Italian", "code": "it", "localized_name": "Italiano" }
      },
      {
        "id": "10",
        "attributes": { "name": "Russian", "code": "ru", "localized_name": "русский" }
      },
      { "id": "11", "attributes": { "name": "Korean", "code": "ko", "localized_name": "한국어" } },
      { "id": "12", "attributes": { "name": "Chinese", "code": "zh", "localized_name": "中文" } }
    ]
  }
}