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Auto-Generate & Publish SEO Blog Posts to WordPress with OpenRouter & Runware

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Created by: Khairul Muhtadin || khmuhtadin

Khairul Muhtadin

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Automate Blog Creation and Publishing with Ultra-Low Cost AI

This n8n workflow — BlogBlizt: Runaware Edition — automates the creation, enrichment, and publishing of SEO-optimized blog posts for WordPress using entirely free OpenRouter AI models for text and metadata generation, plus ultra-low-cost Runware AI for realistic featured images (as low as $0.0016 per image).

It’s triggered every 3 hours or manually via Telegram. Each run generates 1,500–3,500-word articles on trending topics in Technology, AI, Tech Facts, History, or Tips — all complete with catchy titles, slugs, meta descriptions, and visuals.

💰 Why This Is So Cost-Efficient

  • ✅ Free metadata + article generation (OpenRouter free-tier models)
  • 💸 Only cost is for image generation via Runware:
    • Image generation: ~$0.0016/image (the cheapest model could be $0,00065)

This is ideal for scale — generating dozens of high-quality blog posts with minimal expense.

⚡ Who Is This For?

  • Bloggers who want high-quality content without writing
  • SEO marketers seeking fresh, long-form articles
  • WordPress site owners automating publishing workflows
  • Growth hackers targeting high-volume content generation

❓ What Problem Does It Solve?

Creating SEO-rich blog content is time-consuming, expensive, and requires expertise. BlogBlizt eliminates this friction by using free models (OpenRouter) to generate text and metadata — making this workflow nearly free to operate, with the only cost being the featured image (~$0.0016/image).

🔧 What This Workflow Does

  • ⏱ Triggers: Every 3 hours (or via Telegram command: generate)
  • 🧠 Generates Metadata: Title, slug, category, focus keyphrase, and meta description using OpenRouter
  • ✍️ Writes SEO Article: 1,500–3,500 words with headings, H2/H3s, CTA, and outbound links
  • 🖼️ Creates Image: Generates realistic 1024×1024 blog image with Runware AI
  • 📤 Publishes to WordPress: Auto-publishes with category ID, featured image, and Yoast SEO fields
  • 📣 Notifies: Sends publish link to Discord and Telegram (optional)

🔐 Setup Instructions

  • Import .json into n8n
  • Add credentials:
    • OpenRouter API (free LLMs like LLaMA-3, Nemotron)
    • Runware API key (get it here)
    • (Optional) Telegram Bot + Discord Webhook
  • Test by sending the word generate via Telegram

🧩 Pre-Requirements

  • Self-hosted or cloud-based n8n instance
  • WordPress with category IDs configured:
    • Technology → 3
    • AI → 4
    • Tech Fact → 7
    • Tech History → 8
    • Tech Tips → 9
  • OpenRouter API Key (free)
  • Runware API Key (for images)
  • WordPress user ID (admin, default is 1)
  • Telegram bot (optional)
  • Discord webhook (optional)

🛠️ Customize It Further

  • Change writing tone or prompt in ✍️ Compose SEO Article Content node
  • Cofigure the category
  • Swap free LLMs (Claude, Gemini, GPT, etc.) in OpenRouter settings
  • Adjust schedule (every 6h, daily, etc.)
  • Extend alerts (email, Slack, Notion)

🧠 Nodes Used

  • Schedule Trigger
  • Telegram Trigger
  • @n8n/n8n-nodes-langchain (OpenRouter)
  • WordPress Node
  • HTTP Request (Runware API)
  • Discord Webhook
  • Sticky Notes (Documentation inside canvas)

📞 Support

Created by: Khaisa Studio
Tag: youtube, summarizer, telegram, openai
Category: AI Automation, Video Tools
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