AI-Powered Social Media Auto-Posting with Google Trends + Perplexity + GPT-3.5 + n8n

Supercharge your social media presence with this all-in-one AI-powered content automation workflow built for n8n.

This powerful automation pulls the latest trending topics directly from Google Trends using SerpAPI, analyzes them with OpenAI’s GPT-3.5, and transforms them into high-performing, human-like social media posts via Perplexity AI’s Sonar Pro model. Then, it automatically publishes the content to your LinkedIn, Twitter (X), and Facebook accounts — and logs everything to Google Sheets for tracking and future reference.

Whether you're a digital marketing agency, solo founder, or AI automation business, this workflow ensures you're consistently posting relevant and timely content that boosts visibility, engagement, and SEO — without ever having to write a word yourself.

🧠 How It Works:

1. Scheduled twice daily (6 AM & 6 PM by default), the workflow begins by scanning Google Trends for trending queries related to AI.
2. It picks the top two rising topics, filters those with high search volume, and uses GPT-3.5 to intelligently select the best keyword for SEO potential.
3. That keyword is then passed to Perplexity AI, which generates a professional yet conversational LinkedIn-style post — formatted to match best practices (Unicode headline, bullet points, call to action, hashtags).
4. The post is cleaned up and split out to LinkedIn, Twitter, and Facebook via their respective APIs.
5. A log of each post is saved in Google Sheets with metadata including topic, content, post status, and timestamp — perfect for analytics or reporting.

💡 Features:

• 🔎 Real-time trend research via Google Trends (SerpAPI)
• 🧠 AI topic decision making with OpenAI GPT-3.5
• ✍️ Professional post creation with Perplexity’s Sonar Pro model
• 🗓️ Automated social media publishing to Facebook, Twitter, and LinkedIn
• 📊 Google Sheets integration for easy logging and tracking
• 📈 Built with SEO and audience engagement in mind
• 🔧 Fully customizable and extendable inside n8n

No more writer’s block. No more struggling to keep up with trends. Just plug in your API keys, connect your social accounts, and let automation do the heavy lifting — every single day.