n8n AI Content Auto-Poster — Social Media Workflow

## What It Does Complete n8n workflow (import in one click) that automates your full social media content pipeline: 1. Cron trigger (Mon/Wed/Fri at 9am or custom) 2. Pulls topics from Google Sheets / Airtable 3. GPT-4o writes the post in your brand voice 4. Reformats for Twitter thread, LinkedIn, Facebook 5. Posts to all three platforms via their APIs 6. Logs each post back to your Google Sheet ## What's Included - `workflow.json` — the full n8n workflow - `SETUP.md` — step-by-step API credential setup - `prompts/brand-voice.txt` — editable system prompt template - `content-calendar-template.xlsx` — sample Google Sheet structure ## Requirements - n8n (self-hosted v1.0+ or n8n Cloud — free tier works) - OpenAI API key - Twitter Developer App, LinkedIn Developer App, Meta Developer App - Google Sheets API credentials