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Enhance Your Video Content with AI Captions Using FFMPEGAPI.net

June 2026 FFMPEG API Team

In today's fast-paced digital environment, video content is king, and adding dynamic captions can significantly enhance viewer engagement. FFMPEGAPI.net provides a powerful hosted REST API that allows developers to easily transcribe videos and create TikTok-style captions without the hassle of server management. In this article, we will explore the AI Captions API endpoint and how it can streamline your video content pipeline.

What is the AI Captions API?

The AI Captions API is an endpoint designed to help you transcribe videos and render stylish captions tailored for platforms like TikTok. By utilizing this API, you can extract audio, get word timestamps, and generate captions that enhance the viewer's experience.

This API is particularly useful for content creators, automation processes, and those managing large-scale media workflows.

  • Transcribes audio from video seamlessly.
  • Generates timestamps for each word.
  • Offers customizable caption styles.
  • Easy integration into existing workflows.

How to Use the AI Captions API

To use the AI Captions API, you'll need to make a POST request to the endpoint: `/api/videos/add-tiktok-captions`. This requires the video URL and can optionally include parameters like the subtitle style, language, aspect ratio, maximum characters per line, maximum lines, and caption position.

  • Endpoint: /api/videos/add-tiktok-captions
  • Method: POST
  • Content Type: application/json
import requests

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

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

Parameters for Customizing Captions

The AI Captions API allows you to fine-tune how the captions will appear in your video. Below are the key parameters you can customize:

  • video_url (string, required): The URL of the video to process.
  • subtitle_style (string, optional): Choose from plain-white, yellow-bg, pink-bg, blue-bg, or red-bg.
  • language (string, optional): Specify the language code or use 'auto' to detect.
  • aspect_ratio (string, optional): Set the aspect ratio to 16:9, 9:16, 4:3, or 3:4.
  • max_chars_per_line (integer, optional): Limit caption length from 5 to 80 characters.
  • max_lines (integer, optional): Set maximum lines of captions from 1 to 4.
  • position (string, optional): Position captions at top, center, or bottom.

FFMPEGAPI.net is the ideal solution for developers seeking a fast and efficient media processing API for their content pipelines. With its robust AI Captions API, you can easily enhance your video content with stylish captions, improving engagement and accessibility. No server setup is required, and with API-key authentication, integrating FFMPEGAPI.net into your workflows has never been easier. Start transforming your video content today!

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