Generate & Upload Images with Leonardo AI, WordPress and Twitter

Description

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.

☁️ Twitter Media Upload
Uploads the image to twitter so that you can post the image later on to X.com using the media_id

🔗 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
Supports media upload for twitter

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

| Field | Type | Description |
|--------|--------|----------------------------------------|
| prompt | string | Text prompt for image generation |
| slug | string | Filename identifier (e.g. hero-image) |

Example:
{
"prompt": "A futuristic city skyline at night",
"slug": "futuristic-city"
}
📤 Output
{
"public_image_url" : "https://your.wordpress.com/img-id",
"wordpress":{...obj},
"twitter":{...obj}
}
🔄 Workflow Summary
Receive Prompt & Slug
Via manual trigger or parent workflow execution
Generate Image
POST to Leonardo AI's API with the prompt and config
Wait & Poll
Delays 1 minute, then fetches final image metadata
Download Image
GET request to retrieve generated image
Upload to WordPress
Uses WordPress REST API with proper headers
Upload to Twitter
Uses Twitter Media Upload API to get the media id incase you want to post the image to twitter
Return Result
Outputs a clean public_image_url JSON object along with wordpress and twitter media objects

🔐 Requirements
Leonardo AI account and API Key
WordPress site with API credentials (media write permission)
Twitter / x.com Oauth API (optional)
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:
{
"public_image_url": "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.