Privacy

What is Sent to AI

Book metadata (title, author, publisher, date, language)
Your questions
Your persona (if enabled)
Prompts if you customize them

What is NOT Sent

Your calibre tags, comments, or reviews
Reading progress
Personal data

API Key Storage

Stored locally on your computer
Never sent to third parties
Location: calibre config folder/plugins/ask_ai_plugin.json

Maximum Privacy

For maximum privacy, use Ollama:

Runs locally on your computer
Nothing sent online
Complete control over your data

See Free API Options for Ollama setup.