Prompt-to-Image Generator & WordPress Uploader (n8n Workflow)

This workflow generates high-quality AI images from text prompts using Leonardo AI, then automatically uploads the result to your WordPress media library and returns the final image URL.

It functions as a Modular Content Production (MCP) tool - ideal for AI agents or workflows that need to dynamically generate and store visual assets on-demand.

⚙️ Features

• 🧠 AI-Powered Generation
  Uses Leonardo AI to create 1472x832px images from any text prompt, with enhanced contrast and style UUID preset.

• ☁️ WordPress Media Upload
  Uploads the image as an attachment to your connected WordPress site via REST API.

• 🔗 Returns Final URL
  Outputs the publicly accessible image URL for immediate use in websites, blogs, or social media posts.

• 🔁 Workflow-Callable (MCP Compatible)
  Can be executed standalone or triggered by another workflow. Acts as an image-generation microservice for larger automation pipelines.

🧠 Use Cases

For AI Agents (MCP)

• Plug this into multi-agent systems as the "image generation module"
• Generate blog thumbnails, product mockups, or illustrations
• Return a clean image_url for content embedding or post-publishing

For Marketers / Bloggers

• Automate visual content creation for articles
• Scale image generation for SEO blogs or landing pages

For Developers / Creators

• Integrate with other n8n workflows
• Pass prompt and slug as inputs from any external trigger (e.g., webhook, Discord, Airtable, etc.)

📥 Inputs

Example:

{
  "prompt": "A futuristic city skyline at night",
  "slug": "futuristic-city"
}

📤 Output

{
  "image_url": "https://yourwordpresssite.com/wp-content/uploads/2025/07/img-futuristic-city.jpg"
}

🔄 Workflow Summary

1. Receive Prompt & Slug
   Via manual trigger or parent workflow execution
2. Generate Image
   POST to Leonardo AI's API with the prompt and config
3. Wait & Poll
   Delays 1 minute, then fetches final image metadata
4. Download Image
   GET request to retrieve generated image
5. Upload to WordPress
   Uses WordPress REST API with proper headers
6. Return Result
   Outputs a clean image_url JSON object

🔐 Requirements

• Leonardo AI account and API Key
• WordPress site with API credentials (media write permission)
• n8n instance (self-hosted or cloud)
• This credential setup:
  • httpHeaderAuth for Leonardo headers
  • httpBearerAuth for Leonardo bearer token
  • wordpressApi for upload

🧩 Node Stack

• Execute Workflow Trigger / Manual Trigger
• Code (Input Parser)
• HTTP Request → Leonardo image generation
• Wait → 1 min delay
• HTTP Request → Poll generation result
• HTTP Request → Download image
• HTTP Request → Upload to WordPress
• Code → Return final image URL

🖼 Example Prompt

{
  "prompt": "Batman typing on a laptop",
  "slug": "batman-typing-on-a-laptop"
}

Will return:

https://articles.emp0.com/wp-content/uploads/2025/07/img-batman-typing-on-a-laptop.jpg

🧠 Integrate with AI Agents

This workflow is MCP-compliant—plug it into:

• Research-to-post pipelines
• Blog generators
• Carousel builders
• Email visual asset creators

Trigger it from any parent AI agent that needs to generate an image based on a given idea, post, or instruction.