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

fetch('https://blackbox.dasha.ai/api/v1/misc/builtin-media', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "items": [
    {
      "id": "<string>",
      "name": "<string>",
      "description": "<string>",
      "uri": "<string>",
      "durationSeconds": 123
    }
  ]
}