curl --request POST 'https://api.voicecheap.ai/v1/actions/youtube_transcript_history_get' \
  --header "x-api-key: $VOICECHEAP_API_KEY" \
  --header 'Content-Type: application/json' \
  --data '{"historyId":"history_20261016_001"}'

const input = {
  historyId: 'history_20261016_001',
};
const response = await fetch('https://api.voicecheap.ai/v1/actions/youtube_transcript_history_get', {
  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/youtube_transcript_history_get",
    headers={"x-api-key": os.environ["VOICECHEAP_API_KEY"]},
    json={"historyId": "history_20261016_001"},
    timeout=120,
)
body = response.json()
if not response.ok:
    raise RuntimeError(f"{body.get('code')}: {body.get('message')}")
print(body)

{
  "data": {
    "historyId": "history_20261016_001",
    "youtubeUrl": "https://www.youtube.com/watch?v=abcdefghijk",
    "videoId": "abcdefghijk",
    "videoTitle": "Product tutorial",
    "channelName": "Example channel",
    "language": "en",
    "durationSeconds": 60,
    "durationMinutes": 1,
    "createdAt": 1792152000000,
    "updatedAt": 1792152000000,
    "status": "success",
    "transcriptSegmentCount": 1,
    "response": {
      "source": "youtube_caption",
      "language": "en",
      "video": {
        "videoId": "abcdefghijk",
        "sourceUrl": "https://www.youtube.com/watch?v=abcdefghijk",
        "canonicalUrl": "https://www.youtube.com/watch?v=abcdefghijk",
        "title": "Product tutorial",
        "channelName": "Example channel",
        "durationSeconds": 60
      },
      "segments": [
        {
          "index": 0,
          "startSeconds": 0,
          "endSeconds": 1.5,
          "text": "Hello world."
        }
      ],
      "text": "Hello world.",
      "srt": "1\n00:00:00,000 --> 00:00:01,500\nHello world.",
      "createdAt": 1792152000000
    }
  }
}