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SnapOtter/apps/docs/tools/video/merge-videos.md
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description
description
Join multiple video clips into one file.

Merge Videos

Join multiple video clips into a single MP4 file. All inputs are normalized to the first video's resolution and 30 fps.

API Endpoint

POST /api/v1/tools/video/merge-videos

Accepts multipart form data with two or more video files. This is an async endpoint - it returns 202 Accepted immediately and progress is streamed via SSE at GET /api/v1/jobs/{jobId}/progress.

Parameters

This tool has no settings parameters. Upload 2-10 video files as multiple file parts.

Example Request

curl -X POST http://localhost:1349/api/v1/tools/video/merge-videos \
  -H "Authorization: Bearer si_your-api-key" \
  -F "file=@intro.mp4" \
  -F "file=@main.mp4" \
  -F "file=@outro.mp4"

Example Response

{
  "jobId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
  "async": true
}

Notes

  • Clips are concatenated in the order they are uploaded.
  • All clips are re-encoded to match the first clip's resolution, frame rate (30 fps), and codec (H.264). Mismatched inputs are automatically normalized.
  • Accepts 2-10 video files per request.
  • Progress updates are available via SSE at GET /api/v1/jobs/{jobId}/progress until the job completes.