CapCut API & Auto-Captions Alternative with Samautomation

Generate and caption your videos automatically. Scale your content production with our JSON Video API, templates, and n8n integrations — without the hassle.

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Automatic Captions

Generate accurate captions (burned-in or SRT) and customize style, color, shadow, and timing to match your brand.

JSON Video API

Send a JSON payload with media, voice, and settings — we render your video server‑side at scale.

n8n & Workflows

Automate end‑to‑end: fetch sources, generate voice‑over, create captions, and publish automatically.

How It Works

From input to published short in minutes.

Prepare — Choose your images/video, voice‑over (upload or TTS), and aspect ratio (9:16, 1:1, 16:9).
Send JSON — Post a payload to our API with media, styles, and caption settings.
Render & caption — We generate the video, burn captions in or return an SRT file, and provide a download URL.
Publish — Optionally connect your n8n flow to auto‑post or schedule in bulk.

Example JSON payload

Easy to integrate with your app or n8n workflow.

{
  "type": "ImageVideo",
  "data": {
    "background_url": "https://example.com/music.mp3",
    "voice_url": "https://example.com/voiceover.mp3",
    "media_list": [
      {"type": "image", "url": "https://example.com/frame-1.jpg"},
      {"type": "image", "url": "https://example.com/frame-2.jpg"}
    ],
    "transcripts": [
      {"words": "Welcome to Samautomation", "start": 0.00, "end": 1.20},
      {"words": "Automatic captions & video automation", "start": 1.20, "end": 2.80}
    ],
    "settings": {
      "aspect_ratio": "9:16",
      "background_volume": 0.15,
      "voice_volume": 1.0,
      "font_size": 96,
      "stroke_color": "#000000",
      "stroke_width": 6,
      "caption_style": "bottom_bar"
    }
  }
}

See all parameters in our API documentation.

FAQ

Do you support auto‑captions?

Yes. Provide a transcript or generate it via n8n/TTS; we burn captions in or return an SRT file.

Does this work like a CapCut API?

Functionally similar: JSON‑in, video‑out, with stylable captions, branding, and batch rendering.

Which platforms?

Optimized for TikTok, Instagram Reels, YouTube Shorts, and standard 16:9.

Can I automate this?

Absolutely. Use our n8n setup to build full flows.

Create your first video

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