TikTok Video Download API

The TikTok Video Download API allows you to download TikTok videos in multiple formats and qualities. It returns a temporary, pre-signed download URL with title, duration, thumbnail, and file size metadata. Same request shape as the YouTube Download API so client integrations can swap one for the other.

Endpoint

https://api.socialkit.dev/tiktok/download

Example Request

POST https://api.socialkit.dev/tiktok/download
 
{
  "access_key": "<your-access-key>",
  "url": "https://www.tiktok.com/@user/video/7522711492140059912",
  "format": "mp4",
  "quality": "720p"
}

Response

{
  "success": true,
  "data": {
    "url": "https://www.tiktok.com/@user/video/7522711492140059912",
    "title": "Why Do Cats Attack You Randomly? 🫠",
    "duration": "0:49",
    "durationSeconds": 49,
    "thumbnail": "https://p19-common-sign.tiktokcdn.com/...",
    "downloadUrl": "https://socialkit-downloads.s3.amazonaws.com/...",
    "fileSize": 5210953,
    "fileSizeMB": "4.97 MB",
    "format": "mp4",
    "quality": "720p",
    "expiresIn": "1 hour"
  }
}

Parameters

url string Required
The TikTok URL of the video to download. Works with regular URLs (https://www.tiktok.com/@user/video/<id>) and short share links (https://vm.tiktok.com/<code>, https://vt.tiktok.com/<code>).

access_key string Required
Your API access key. Can be provided via the access_key query parameter, x-access-key header, or request body.

format string Optional Defaults to mp4
Output format for the download. Supported formats: mp4, mp3, avi, webm, m4a, ogg, wav.

quality string Optional Defaults to 720p
Video quality for the download. Supported qualities: 240p, 360p, 480p, 720p, 1080p. Most TikTok videos publish at 720p, so 720p is the sensible default. The quality parameter is ignored for audio-only formats.

Response Fields

The API returns the following data fields:

• url: The original TikTok URL you submitted
• title: The video title (caption / description) as reported by TikTok
• duration: Human-readable video duration (MM:SS format)
• durationSeconds: Video duration in seconds
• thumbnail: URL to the video thumbnail image
• downloadUrl: Pre-signed S3 URL to download the file (expires after 1 hour)
• fileSize: File size in bytes
• fileSizeMB: Human-readable file size in megabytes
• format: The output format used
• quality: The video quality used (or "audio" for audio-only formats)
• expiresIn: Time until the download URL expires ("1 hour")

Supported Formats

Caching Behavior

Repeat downloads of the same (videoId, format, quality) tuple hit a deterministic S3 cache and return in under 2 seconds. Cache hits still count as 1 credit because the API call still happens, but you save the download time and the upstream bandwidth cost.

Use Cases

• Offline viewing: download TikTok videos for later access
• Audio extraction: convert TikTok videos to MP3 or other audio formats for podcast clipping or transcription
• Content archiving: keep copies of trending or at-risk videos
• Content repurposing: download a TikTok and re-cut for YouTube Shorts, Instagram Reels, or X
• AI / RAG ingestion: feed the raw MP4 into multi-modal models for object detection, scene classification, or training data

Notes

• Maximum file size per download is 30MB. Covers nearly every standard TikTok upload. Unusually long videos may exceed this.
• Download URLs expire after 1 hour. Re-request to refresh. Cache hits make the refresh near-instant.
• Audio-only formats (mp3, m4a, ogg, wav) extract the audio track from the video.
• The quality parameter applies to video formats only.
• 1 successful download = 1 credit. Failed requests are free.