Viral video generator: HeyGen to TikTok & Instagram auto-post + any content

HeyGen AI Video Generation with Social Media Publishing Description This workflow automates the entire process of creating AI-generated videos from trending news content and publishing them to social media platforms (Instagram and TikTok). It runs daily at 6 AM, finds viral-worthy news, generates scripts, creates AI avatar videos using HeyGen, and automatically publishes to multiple social platforms. How it works Content Discovery & Script Generation 1. Schedule Trigger: Runs daily at 6 AM or any time you choose. 2. Perplexity Search: Finds trending news articles that would make good viral content 3. Write Video Script: Uses GPT-4.1 to create a 30-second video script with hook, main content, and CTA 4. Extract URL: Parses the article URL and script data for further processing Video Creation Pipeline 5. Get Screenshot: Uses ScreenshotOne API to create an animated scrolling video of the news article 6. Upload to Cloudinary: Temporarily stores the background video 7. Write Video Caption: Generates an engaging social media caption (150-200 characters) 8. Prepare Avatar Data: Combines all data needed for HeyGen video generation 9. Create Avatar Video: Sends request to HeyGen API to generate AI avatar video with: - Talking photo avatar - Text-to-speech voice - Background video from the news article - 720x1280 dimensions (vertical format) Data Management 10. Prepare Sheets Data: Formats video metadata 11. Store to Google Sheets: Saves videoid, caption, timestamp, and status for tracking Webhook Processing (Asynchronous) 12. HeyGen Webhook: Receives callback when video generation is complete 13. Process HeyGen Callback: Extracts video URLs and status from webhook 14. Get Caption from Sheets: Retrieves the associated caption using videoid 15. Combine Data: Merges video data with caption Social Media Publishing 16. Upload to Blotato: Uploads the completed video to Blotato media service 17. Extract Blotato URL: Gets the media URL for social posting 18. Assign Social Media IDs: Sets the account IDs for each platform 19. INSTAGRAM: Posts video to Instagram with caption 20. TIKTOK: Posts video to TikTok with caption and appropriate settings Setup Prerequisites 1. API Keys Required: - Perplexity API (for news search) - OpenAI API (for script and caption generation) - ScreenshotOne API (for article screenshots) - HeyGen API (for AI video generation) - Cloudinary account (for temporary video storage) - Blotato API (for social media posting) - Google Sheets API (for data tracking) 2. HeyGen Setup: - Create a talking photo avatar and get the talkingphotoid - Select a voice and get the voiceid - Set up a webhook endpoint in n8n for callbacks 3. Google Sheets Setup: - Create a new Google Sheet - Add headers: videoid, caption, timestamp, status - Get the sheet ID from the URL 4. Social Media Setup: - Connect Instagram and TikTok accounts to Blotato - Get the account IDs for each platform Configuration Steps 1. Replace all placeholder values: - YOURTALKINGPHOTOID - HeyGen avatar ID - YOURVOICEID - HeyGen voice ID - YOURWEBHOOKURL - Your n8n webhook URL - YOURGOOGLESHEETID - Google Sheets document ID - YOURINSTAGRAMACCOUNTID - Blotato Instagram account ID - YOURTIKTOKACCOUNTID - Blotato TikTok account ID - YOURCLOUDNAME - Cloudinary cloud name - YOURUPLOADPRESET - Cloudinary upload preset 2. Add credentials in n8n: - Perplexity API credentials - OpenAI API credentials - HeyGen API credentials (create custom API credentials with X-Api-Key) - Blotato API credentials - Google Sheets OAuth2 - ScreenshotOne API credentials 3. Configure the webhook: - Copy the webhook URL from the "HeyGen Webhook" node - Use this URL in the "Create Avatar Video" node's callbackurl Notes - The workflow uses a two-part asynchronous process: initial video creation and webhook-based completion - Videos are optimized for vertical format (720x1280) for mobile social media - The Google Sheet acts as a database to link video IDs with captions - All sensitive content (URLs, API keys) should be replaced with your own values - Consider content moderation and copyright when selecting news sources - Monitor API usage and costs, especially for HeyGen video generation Customization Options - Content Sources: Modify the Perplexity search query to target specific news sources or topics - Video Style: Adjust avatar position, scale, and background video settings - Voice Settings: Change voiceid, speed, and pitch for different narration styles - Publishing Schedule: Modify the Schedule Trigger for different times or frequencies - Social Platforms: Add more platforms by duplicating the Blotato posting nodes