API Reference

Complete guide to Knowlify video generation APIs

Welcome to Knowlify API

Knowlify provides three powerful APIs for video generation, each optimized for different use cases:

Grant

Fast generation for real-time apps

Prism

High-quality videos with rich animations

Modify

Edit existing videos efficiently

Parameters

Each script accepts different parameters based on the action type. Grant and Prism scripts share similar parameters, while the modify API has its own specific parameters for video modification.

Parameter Reference

Parameter	Grant	Prism	Modify API	Description
task/query	Required	Required	Required	The instruction or prompt for video generation/modification
action	Required	Required	Required	"finetuned_live_gen", "Pre-Rendered", or "modify"
api_key	Required	Required	Optional	Your authentication API key for accessing the service
logo	Optional	Optional	Not Available	Custom logo to display in the video
language	Optional	Optional	Not Available	Language for the video narration
voice_name	Optional	Optional	Not Available	Custom voice for the video narration
background_color	Not Available	Optional	Not Available	Custom background color for the video
quality	Not Available	Optional	Not Available	Video quality setting: “low”, “medium”, “high” (default), or “production”
link	Not Available	Not Available	Required	URL of the original video to be modified
timestamp	Not Available	Not Available	Required	Timestamp where the modification should be applied (e.g., “6:18”)

VTT Files

Alongside the video link, the API also returns a VTT (WebVTT) file containing subtitles and captions for the generated video.

What is a VTT File?

A VTT file is a standard format for displaying timed subtitles and captions that synchronize with video playback.

API Response

When your video generation is complete, you’ll receive both the video link and the VTT file URL in the response.

Example Response:

{
  "video_link": "https://knowlify-videos1.s3.us-west-2.amazonaws.com/video.mp4",
  "vtt_file": "https://knowlify-videos1.s3.us-west-2.amazonaws.com/subtitles.vtt",
  "status": "completed"
}

Getting Started

1. Get your API key from the Knowlify team
2. Choose your endpoint based on your speed vs. quality needs
3. Make your first request using the examples in each API section