Privacy Policy

Last updated November 10, 2026.

Seshat is an ebook library app for Mac made by Alejandro Recarey. In short: your books and catalog stay on your Mac, and nothing is sent anywhere unless you use the AI fixer.

What stays on your Mac

Your books, covers, catalog and settings are stored locally, in the library folder you choose and in Seshat's own app data. Seshat has no account, no analytics and no advertising, and we never receive your library.

The AI fixer

Fixing metadata with AI is optional and only runs on the books you choose. For each one, Seshat passes the book's current details and the text of its opening pages to Claude Code on your Mac, which sends them to Anthropic using your own Claude account. Anthropic's handling of that data is covered by your agreement with them and their privacy policy. We never see it.

Your Kindle

Copy to Kindle works over USB. Books are converted on your Mac and copied straight to the device. Nothing goes through the internet.

Contact

Questions about privacy: hello@kheprinanotech.com.