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Auto-Generate & Publish SEO Articles to WordPress with GPT-4 + Postgres Tracking

by AlexWantMoreBadapted from n8n official workflow galleryUpdated Aug 2026
RequiresAAI AgentCCodeHTTP RequestHTTP RequestOpenAI Chat ModelOpenAI Chat ModelPostgresPostgres
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ScSchedule TriggerOpenAI Chat ModelOpenAI Chat Mod…HRDownload ImageCoPrepare Post JSONPrepare Post JS…MeMergeOpenAI Chat Model1OpenAI Chat Mod…HRLoad CategoriesCoCategory FilterSelecting recentCoPicks Less Used10 latest headlines10 latest headl…CoNew article titleNew article tit…AgAI Agent SEO HeadingsAI Agent SEO He…AgAI Agent SEO writerAI Agent SEO wr…MeMerge headingCoCombines full post metaCombines full p…Updating posts DBUpdating posts …CoExtracting outputExtracting outp…CoPlaceholder creatorPlaceholder cre…HRMedia Upload to WPMedia Upload to…HRPost to WPNONo Operation, do nothingNo Operation, d…SeConfig12345678910111213141516171819202122232425
1/5
STEPS · 25
Runs on a schedule

🚀 What this flow does • 🔎 Selects the least-used WordPress category (tracked in PostgreSQL) • 🤖 Uses GPT (4-mini or better) to generate a fully formatted SEO article with headings, TOC, lists, CTA, and Yoast blocks • 🖼️ Creates a placeholder cover image and uploads it to WordPress Media • 📬 Publishes the final post via /wp-json/wp/v2/posts with correct category + featured image • 🧠 Logs the used category for future rotation (zero duplicates!) ⚙️ Setup in 3 mins 🏷️ Add your WordPress domain with a simple Set node: domain=https://yourdomain.com 🔐 Create these 3 credentials in n8n: YOUR_WORDPRESS_CREDENTIAL — for /media, /posts YOUR_POSTGRES_CREDENTIAL — for category tracking YOUR_OPENAI_CREDENTIAL — GPT-4-mini or better 🧱 Run the SQL from docs to create the used_categories table ✅ Manually test first 3–5 nodes to check WP auth, OpenAI response, and DB connection 🕒 Then just schedule it and let the bot write for you. 🎯 Why it's awesome This is your personal AI content writer + publisher — perfect for: • 📰 SEO content farms • 📈 Affiliate blogs • 🧰 Micro niche sites • 🤫 PBNs with rotation-safe automation No more manual uploads, broken categories, or GPT spam.

Tags

n8nreference-onlyagentlm-chat-open-aipostgres
Connects
AAI AgentCCodeWHTTP RequestopenaichatmodelOpenAI Chat ModelpostgresPostgres
CategoryAI Automation
Triggermanual
Complexityadvanced
Nodes23
AddedMay 6, 2025

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