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Enhance Your Videos with AI Captions Using FFMPEGAPI.net

June 2026 FFMPEG API Team

In an era where video content is king, making your videos accessible and engaging is crucial. With FFMPEGAPI.net, developers can easily integrate AI-powered captioning into their workflows without the hassle of server management. This article will guide you through the process of adding TikTok-style captions to your videos using our simple REST API.

What is the AI Captions API?

The AI Captions API at FFMPEGAPI.net allows you to transcribe audio from videos and render styled captions that align with popular platforms like TikTok. This powerful tool is ideal for developers looking to automate video captioning in their applications.

  • Transcribes audio with word timestamps.
  • Renders captions in various styles.
  • Returns caption artifact URLs for further use.

How to Use the AI Captions Endpoint

To get started with the AI Captions API, you will need to make a POST request to the following endpoint: /api/videos/add-tiktok-captions. Below are the required and optional parameters for the API request.

  • Required: video_url (string) - URL of the video to process.
  • Optional: subtitle_style (string) - Choose from styles like plain-white, yellow-bg, pink-bg, etc.
  • Optional: language (string) - Specify the language code or use 'auto'.
  • Optional: aspect_ratio (string) - Set to 16:9, 9:16, 4:3, or 3:4.
  • Optional: max_chars_per_line (integer) - Limit caption line length from 5 to 80.
  • Optional: max_lines (integer) - Set the maximum number of caption lines from 1 to 4.
  • Optional: position (string) - Specify where to place the captions: top, center, or bottom.
curl -X POST https://www.ffmpegapi.net/api/videos/add-tiktok-captions \
-H "Content-Type: application/json" \
-d '{"video_url": "https://example.com/video.mp4", "subtitle_style": "yellow-bg", "position": "bottom"}'
import requests

url = 'https://www.ffmpegapi.net/api/videos/add-tiktok-captions'
data = {"video_url": "https://example.com/video.mp4", "subtitle_style": "yellow-bg", "position": "bottom"}

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

Why Choose FFMPEGAPI.net?

FFMPEGAPI.net stands out as a hosted solution for video processing, allowing developers to focus on building their applications without worrying about server setup or FFmpeg infrastructure management. With API-key authentication, your workflows remain secure and efficient.

  • Instantly accessible API without server management.
  • Flexible options for video captioning.
  • Ideal for automation, SaaS applications, and AI integrations.

Incorporating AI captions into your videos has never been easier with FFMPEGAPI.net. By utilizing our robust AI Captions API, you can enhance the accessibility and engagement of your video content with minimal effort. Start leveraging our hosted FFmpeg solution today and streamline your video processing workflows.

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