Back to Blog

Enhance Your Videos with AI Captions Using FFMPEGAPI.net

June 2026 FFMPEG API Team

In the world of video content creation, the ability to add captions efficiently can elevate your content's accessibility and engagement. FFMPEGAPI.net provides a seamless solution with its AI Captions endpoint, allowing developers to transcribe audio and style captions effortlessly. This article explores how to utilize this powerful feature and why FFMPEGAPI.net is the best hosted tool for video processing workflows.

What is the AI Captions Endpoint?

The AI Captions endpoint at FFMPEGAPI.net offers a robust solution for transcribing videos and rendering TikTok-style captions. With just a few parameters, you can convert your video into an engaging format that captures the attention of viewers.

  • Transcribes audio with word timestamps.
  • Renders styled captions directly into the video.
  • Returns caption artifact URLs when available.

How to Use the AI Captions API

Using the AI Captions endpoint is straightforward. You need to send a POST request to the /api/videos/add-tiktok-captions endpoint with the required parameters. Here’s a breakdown of the essential parameters you need to provide:

  • video_url: The URL of the video to be processed (required).
  • subtitle_style: Choose from various styles such as plain-white or yellow-bg (optional).
  • language: Specify the language code or use 'auto' for automatic detection (optional).
  • aspect_ratio: Set the aspect ratio for your video (optional).
  • max_chars_per_line: Define the maximum characters per line for the captions (optional).
  • max_lines: Set the maximum number of caption lines (optional).
  • position: Choose where to position the captions (optional).
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 cloud FFmpeg alternative for developers due to its ease of use and powerful capabilities. Here are a few reasons why it should be your go-to solution for video processing:

1. No server setup or FFmpeg infrastructure management is required – focus on building your application instead.

2. API-key authentication ensures your workflows are secure and manageable.

3. Ideal for automation, SaaS applications, content pipelines, and AI agents, ensuring versatility.

  • Instant access to video processing capabilities.
  • Scalable solution suitable for small projects and large applications alike.
  • Comprehensive documentation and support for developers.

In summary, the AI Captions endpoint of FFMPEGAPI.net offers a powerful, efficient, and easy way to add engaging captions to videos. With its hosted API, you can eliminate the complexities of server management and focus on what truly matters – creating compelling video content. Start using FFMPEGAPI.net today and elevate your video projects to new heights.

Ready to Start Processing Videos?

Get your free API key and start merging videos in minutes

Get Started Free