Reference

Node reference

Types and typeVersions match n8n 2.47.3. API fields are the official JSON2Video and Zernio fields only — nothing is invented.

#The four workflows

#Auto Shorts – Submit Clip (Form)

#Auto Shorts – Ingest & Render

#Auto Shorts – Post Approved

#Auto Shorts – Error Handler

#JSON2Video movie body

POST https://api.json2video.com/v2/movies
Headers: x-api-key, Content-Type: application/json
Response: { success, project, timestamp }. Poll GET /v2/movies?project={id} until movie.status is done, error, or timeout.

{
  "resolution": "custom",
  "width": 1080,
  "height": 1920,
  "quality": "high",
  "cache": true,
  "client-data": { "queue_id": "AS-20261111-DEMO" },
  "elements": [
    {
      "type": "subtitles",
      "language": "auto",
      "model": "whisper",
      "settings": {
        "style": "boxed-word",
        "font-family": "Oswald Bold",
        "font-size": 90,
        "word-color": "#FFFF00",
        "line-color": "#FFFFFF",
        "box-color": "#000000",
        "outline-color": "#000000",
        "outline-width": 6,
        "position": "bottom-center",
        "max-words-per-line": 4
      }
    }
  ],
  "scenes": [
    {
      "elements": [
        {
          "type": "video",
          "src": "https://example.com/clip.mp4",
          "resize": "cover",
          "position": "center-center"
        }
      ]
    }
  ]
}

Official notes used by this pack:

• subtitles is movie-level only (not inside a scene). One per movie.
• Omitting captions means auto-transcribe the audio. model enum: default, elevenlabs, deepgram, whisper.
• Subtitle settings is a closed list. Do not invent CSS keys (color is rejected; use word-color / line-color).
• resolution: custom requires width and height. This pack uses explicit 1080×1920 rather than a named preset.
• Official fps is accepted but every movie currently renders at 25 fps.
• Rendered files and movie.ass / thumbnail are removed after 7 days.
• POST /v2/movies is not idempotent.

#Zernio YouTube body

POST https://zernio.com/api/v1/posts
Header: Authorization: Bearer …, plus Idempotency-Key.

{
  "content": "Description text\n\n#shorts",
  "tags": ["shorts", "cafe"],
  "mediaItems": [{ "type": "video", "url": "https://example.com/render.mp4", "thumbnail": "https://example.com/render.jpg" }],
  "platforms": [{
    "platform": "youtube",
    "accountId": "ACCOUNT_ID",
    "platformSpecificData": {
      "title": "Title at most 100 characters",
      "visibility": "private",
      "madeForKids": false,
      "containsSyntheticMedia": false
    }
  }],
  "publishNow": true
}

For a future time, omit publishNow and set top-level "scheduledFor": "2026-11-15T18:00:00+08:00" and "timezone": "Asia/Taipei". Official rule: publishNow: true wins over scheduledFor; a past scheduledFor publishes in the same request.

YouTube detects Shorts from duration and aspect ratio. There is no Shorts flag. tags is top-level. Always send madeForKids.

#Credentials

IDs are REPLACE_ME. Pick the real credential after import.

Document (By ID) and Sheet (By Name) use expression mode with an = prefix and double curly braces:

={{ $('Config').first().json.google_sheet_id }}
={{ $('Config').first().json.queue_sheet_name }}

On the Error Handler (pictured), the sheet field is error_sheet_name instead of queue_sheet_name.