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All prebuilt tools ADD SUBTITLES TO VIDEO API

Add Subtitles to Video

Burn an SRT or WebVTT caption track into a durable video output. Run it from the playground or call the same preset through one agent-ready endpoint.

Run this tool View API recipe
What the tool does
A focused video edit with a predictable API contract.
  1. 01Validate the caption file
  2. 02Apply a readable style
  3. 03Render captions into frames
  4. 04Encode the final MP4
BUILT FOR AUTOMATION

Useful defaults, typed options.

The tool slug stays stable while your agent supplies the input asset and a narrow set of documented options.

  • SRT and WebVTT inputs
  • Readable safe-area defaults
  • Consistent rendering
POST /api/v1/tools/add-subtitles-to-video
{
  "tool": "add-subtitles-to-video",
  "input": "asset_01",
  "options": { "captions": "asset_srt_01", "preset": "sentence" }
}
FAQ

About burn subtitles

Are subtitles permanently visible?

This preset burns captions into the video frames. A separate pipeline can preserve selectable subtitle tracks.

Can caption styling be customized?

Yes. Safe presets cover common use cases, with constrained options for font size, colors and positioning.

KEEP BUILDING

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