Himuon Image Metadata AI

Generate SEO-friendly image metadata in WordPress using OpenAI and apply it directly to media attachments.

Demo

• Video walkthrough

Features

• Adds a Settings page to store and validate your OpenAI API key.
• Adds a “Generate Metadata” button in the Media Library attachment details.
• Creates alt text, title, caption, and description in one request.
• Updates the attachment fields and alt text meta automatically.

Requirements

• WordPress 6.9+
• PHP 7.4+

Installation

1. Copy this folder into your WordPress wp-content/plugins/ directory.
2. Activate Himuon Image Metadata AI in the Plugins screen.

Configuration

1. Go to Settings → Image Metadata AI.
2. Paste your OpenAI API key and click Save Settings.
3. The plugin validates the key by calling the OpenAI Models endpoint.

Usage

1. Open Media → Library and click an image.
2. In the attachment details panel, click Generate Metadata.
3. The plugin populates:
   • Alt text
   • Title
   • Caption
   • Description

How it works

• Uses the OpenAI Responses API with the gpt-5-nano-2025-08-07 model.
• Sends the attachment’s medium-sized image URL to OpenAI along with a prompt that requests JSON output.
• Updates:
  • post_title (Title)
  • post_excerpt (Caption)
  • post_content (Description)
  • _wp_attachment_image_alt (Alt text)

Data & privacy

• The image URL is sent to OpenAI for processing.
• The API key is stored in WordPress options under himuon_image_meta_data.

Development

Autoloading is PSR-4 via Composer.

composer dump-autoload

Troubleshooting

• If the Generate button doesn’t appear, confirm you’re on Media → Library and viewing attachment details.
• If API validation fails, re-check the key and server outbound connectivity.