Transcripts · ja

Japanese YouTube transcripts

日本語

Japanese (`ja`) tracks mix manual captions on music/anime uploads with ASR elsewhere. Timedtext and InnerTube both expose `ja` cleanly; we return UTF-8 JSON with no mojibake.

curl "https://api.ytapi.dev/v1/transcripts/dQw4w9WgXcQ?lang=ja" \
  -H "Authorization: Bearer yta_YOUR_KEY"

{
  "video_id": "dQw4w9WgXcQ",
  "lang": "ja",
  "is_auto_generated": true,
  "is_translated": true,
  "segments": [
    {
      "start": 18,
      "duration": 4.2,
      "text": "私たちは恋に不慣れじゃない"
    },
    {
      "start": 22.2,
      "duration": 4.8,
      "text": "ルールは君も私も知っている"
    }
  ]
}

Probe available tracks first with the free GET /v1/transcripts/{id}/languages endpoint — 0 credits. Fetching the transcript itself is 1 credit on HTTP 200; missing tracks return transcript_language_not_available and are not billed.