---

name: auto-subtitle description: "Auto Subtitle. Automatically add animated karaoke-style subtitles to videos. Triggers: subtitles, captions, transcription, video editing, karaoke, TikTok" allowed-tools: Bash(curl *), WebFetch

Auto Subtitle

Automatically transcribe and add animated karaoke-style subtitles to videos. Supports multiple languages, customizable fonts from Google Fonts, and TikTok-style word highlighting.

Quick Start

Requires an each::labs API key. Get one at eachlabs.ai.

curl -X POST https://api.eachlabs.ai/v1/prediction \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -d '{
    "model": "auto-subtitle",
    "version": "0.0.1",
    "input": {
      "video_url": "https://example.com/talking-head.mp4",
      "language": "en",
      "font_name": "Montserrat",
      "font_size": 100,
      "highlight_color": "purple"
    }
  }'

Parameters

Parameter	Type	Default	Description
background_color	string	none	Background color behind text. enum: black, white, red, green, blue, yellow, orange, purple, pink, brown, gray, cyan, magenta, none, transparent
background_opacity	number	0	Background opacity (0.0 = fully transparent, 1.0 = fully opaque).
enable_animation	boolean	true	Enable animation effects for subtitles (bounce style entrance).
font_color	string	white	Subtitle text color for non-active words. enum: white, black, red, green, blue, yellow, orange, purple, pink, brown, gray, cyan, magenta
font_name	string	Montserrat	Any Google Font name from fonts.google.com.
font_size	integer	100	Font size for subtitles.
font_weight	string	bold	Font weight. enum: normal, bold, black
highlight_color	string	purple	Color for the currently speaking word (karaoke-style). enum: white, black, red, green, blue, yellow, orange, purple, pink, brown, gray, cyan, magenta
language	string	en	Language code for transcription (e.g., en, es, fr, de).
position	string	bottom	Vertical position of subtitles. enum: top, center, bottom
stroke_color	string	black	Text stroke/outline color. enum: black, white, red, green, blue, yellow, orange, purple, pink, brown, gray, cyan, magenta
stroke_width	integer	3	Text stroke/outline width in pixels (0 for no stroke).
video_url	string		URL of the video file to add subtitles to.
words_per_subtitle	integer	3	Maximum number of words per subtitle segment. Use 1 for single-word display.
y_offset	integer	75	Vertical offset in pixels (positive = move down, negative = move up).

Examples

TikTok-style centered subtitles:

curl -X POST https://api.eachlabs.ai/v1/prediction \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -d '{
    "model": "auto-subtitle",
    "version": "0.0.1",
    "input": {
      "video_url": "https://example.com/tiktok-clip.mp4",
      "language": "en",
      "font_name": "Poppins",
      "font_size": 120,
      "font_weight": "black",
      "font_color": "white",
      "highlight_color": "yellow",
      "position": "center",
      "words_per_subtitle": 2,
      "enable_animation": true,
      "stroke_width": 4
    }
  }'

Minimal subtitles with background:

curl -X POST https://api.eachlabs.ai/v1/prediction \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -d '{
    "model": "auto-subtitle",
    "version": "0.0.1",
    "input": {
      "video_url": "https://example.com/interview.mp4",
      "language": "en",
      "font_name": "Montserrat",
      "font_size": 80,
      "font_weight": "normal",
      "background_color": "black",
      "background_opacity": 0.7,
      "position": "bottom",
      "words_per_subtitle": 5,
      "enable_animation": false
    }
  }'

Spanish subtitles:

curl -X POST https://api.eachlabs.ai/v1/prediction \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -d '{
    "model": "auto-subtitle",
    "version": "0.0.1",
    "input": {
      "video_url": "https://example.com/spanish-video.mp4",
      "language": "es",
      "font_name": "Roboto",
      "highlight_color": "red",
      "words_per_subtitle": 3
    }
  }'

Related Models

• Elevenlabs Speech to Text - Speech transcription
• Whisper - Audio transcription

Documentation

• each::labs Docs
• API Reference