curl --request POST 'https://api.voicecheap.ai/v1/actions/subtitles_result_download' \
  --header "x-api-key: $VOICECHEAP_API_KEY" \
  --header 'Content-Type: application/json' \
  --data '{"resultId":"b3caf96f-5f2a-4619-832c-a12c0d57f78b"}'

const input = {
  resultId: 'b3caf96f-5f2a-4619-832c-a12c0d57f78b',
};
const response = await fetch('https://api.voicecheap.ai/v1/actions/subtitles_result_download', {
  method: 'POST',
  headers: {
    'x-api-key': process.env.VOICECHEAP_API_KEY,
    'Content-Type': 'application/json',
  },
  body: JSON.stringify(input),
});
const body = await response.json();
if (!response.ok) throw new Error(body.code + ': ' + body.message);
console.log(body);

import os
import requests

response = requests.post(
    "https://api.voicecheap.ai/v1/actions/subtitles_result_download",
    headers={"x-api-key": os.environ["VOICECHEAP_API_KEY"]},
    json={"resultId": "b3caf96f-5f2a-4619-832c-a12c0d57f78b"},
    timeout=120,
)
body = response.json()
if not response.ok:
    raise RuntimeError(f"{body.get('code')}: {body.get('message')}")
print(body)

{
  "data": {
    "resultId": "b3caf96f-5f2a-4619-832c-a12c0d57f78b",
    "operation": "captions_transcribe",
    "createdAt": 1792152000000,
    "fileName": "voicecheap-captions_transcribe-b3caf96f-5f2a-4619-832c-a12c0d57f78b.json",
    "byteLength": 190,
    "contentType": "application/json; charset=utf-8",
    "status": "completed",
    "requestId": "13579bdf-2468-4ace-8bdf-0123456789ab",
    "getAction": "subtitles_result_get",
    "downloadAction": "subtitles_result_download",
    "listAction": "subtitles_result_list",
    "content": "{\"words\":[{\"text\":\"Hello\",\"startMs\":0,\"endMs\":500,\"speakerId\":\"speaker_0\"},{\"text\":\"world.\",\"startMs\":500,\"endMs\":1500,\"speakerId\":\"speaker_0\"}],\"detectedLanguage\":\"en\",\"durationSeconds\":60}"
  }
}