Auto-Generate SEO Content from Trends with GPT-4o, FAL AI & Multi-Storage

Who's it for

Content creators, SEO specialists, and marketing teams who want to automatically generate SEO-optimized content based on trending topics—complete with AI-generated images, optional videos, and ready-to-publish HTML.

How it works / What it does

1. Webhook receives a request with use case and video preferences.
2. Get Trends XLSX downloads a spreadsheet (created by the Social Media Trends workflow) from SharePoint.
3. Select Topic from Trends randomly picks one trending topic from the spreadsheet.
4. AI Agent (GPT-4o) generates bilingual newsletter content about the selected trend.
5. Get Newsletter Template fetches your HTML template; Build Newsletter injects the AI content.
6. Optional creative assets:
   • Pollinations AI → generates a 1080 × 1350 image.
   • FAL AI → creates video from the image + Lyria2 audio → merged via FFmpeg.
7. Gmail Approval sends the draft for review; continues only on approval.
8. Upload all files (HTML + JPG + video URL) to your chosen storage provider.

How to set up

1. Import the template into n8n (cloud or self-hosted).
2. Create credentials: OpenAI, Microsoft 365 (SharePoint), Gmail, and FAL AI.
3. Upload your HTML newsletter template to SharePoint (see yellow sticky note for required placeholders).
4. Ensure you have a trends spreadsheet (from the Social Media Trends workflow) in your SharePoint folder.
5. Update Configuration Settings with your ENV_* variables.
6. Activate the workflow and POST to the webhook: { "text": "usecase: blog post, include_video: true" }.

Requirements

• n8n 1.33 +
• OpenAI account
• Microsoft 365 tenant (SharePoint)
• Gmail account
• FAL AI API Key (for video generation)
• A trends spreadsheet (from the Social Media Trends workflow)

How to customize

• Change storage provider: replace SharePoint upload nodes with Google Drive, Dropbox, or S3.
• Modify topic selection: edit Select Topic from Trends for different selection logic.
• Adjust content tone: tweak the prompt in Prepare Newsletter Data.
• Skip video generation: set include_video: false in the webhook request.