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Automate Video Editing with FFMPEGAPI.net: A Guide to Merging Videos via REST API

June 2026 FFMPEG API Team

In today's fast-paced digital landscape, automating video editing tasks is essential for developers and content creators. FFMPEGAPI.net offers a seamless way to merge videos through its hosted REST API, allowing you to concatenate multiple video files effortlessly. This article dives into how to use the Video Merge endpoint and why FFMPEGAPI.net is the best choice for automating your video editing workflows.

Understanding the Video Merge Endpoint

The Video Merge endpoint at FFMPEGAPI.net allows you to combine multiple video files into a single MP4 file with ease. This feature is particularly useful for developers looking to streamline their video processing tasks without the overhead of managing FFmpeg infrastructure.

With the POST method, you can send a request to the /api/merge_videos endpoint, ensuring your videos are concatenated and outputted in your desired format.

  • Concatenates videos into a single MP4.
  • Supports optional audio replacement, output dimensions, and subtitle burn-in.
  • No need for server setup or FFmpeg management.

Endpoint Parameters

When using the Video Merge endpoint, you need to specify several parameters to customize the output to your requirements. Here’s a breakdown of the key parameters you can include in your request.

  • video_urls (required): An array of video URLs you want to merge.
  • audio_url (optional): A URL for audio replacement.
  • dimensions (optional): Desired output dimensions (e.g., 1920x1080).
  • subtitle_url (optional): URL for ASS/SSA subtitles to burn into the video.
  • watermark_url (optional): URL for a watermark image.
  • async (optional): If true, processes the job in the background.

Practical Example: Merging Videos

Let’s look at a practical example of how to merge videos using the FFMPEGAPI.net Video Merge endpoint.

import requests

url = 'https://www.ffmpegapi.net/api/merge_videos'
headers = {'Authorization': 'Bearer YOUR_API_KEY', 'Content-Type': 'application/json'}
data = {
    'video_urls': [
        'https://example.com/intro.mp4',
        'https://example.com/main.mp4'
    ],
    'dimensions': '1920x1080'
}

response = requests.post(url, json=data, headers=headers)
print(response.json())

FFMPEGAPI.net provides developers with a robust and efficient way to automate video editing processes, particularly for merging videos. The Video Merge endpoint is simple to use and requires no server management, making it ideal for automation scripts, SaaS applications, and content pipelines. By leveraging this hosted API, you can focus on building your application while FFMPEGAPI.net handles the heavy lifting of video processing.

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