Stability Ai
Go to https://yourdomain.com/admin/developer-settings/ai-api-settings
Or click to Developer Settings > Ai Api Settings 
Note: Stability Ai used for AI Image generation AI engine
Then
Go to https://platform.stability.ai/ (opens in a new tab)
Or click to API keys
- Click My APPS
- Select Create API Key
- Copy the key
- Add that api key in here
