Find On Your Shelf
Discover
Add a book worth keeping.
Search Google Books first, then fine-tune the details once you open it.
Can’t find it or want total control? Start a blank book entry instead.
Search results will appear here once you start typing.
Account
Sign Out
Todoist
API Token
Used to create library return reminders (stored for this browser session only)
Import Books
Import JSON, Goodreads CSV, or Apple Books CSV
Choose Shelf books-import.json, a Goodreads export, or an Apple Books-style CSV. Conflicts will pause for review.
Backup
Export Full Library Backup
Download a full JSON backup of your current Shelf library from this device.
ISBN Tools
Fill Missing ISBNs
Auto-fills high-confidence matches and reviews anything under 90% confidence inside the app.
Cover Tools
Fetch Missing Covers
Look up missing covers from Open Library and Google Books.
Security
Recent Security Activity
Recent security-relevant actions on this device. Stored locally in this browser for quick review.
Logs to Check Regularly
Use these vendor logs for anything that matters beyond this device.
Cloudflare Pages Functions: `/google-books`, `/characters`, `/series`, `/series-catalog`, and `/ocr-quote` for 401s, 403s, failures, or request spikes.
Firebase Authentication: new users and unexpected sign-ins.
Firestore usage: write spikes, denial spikes, or unusual document growth.
Anthropic usage: OCR or AI request spikes and unexpected spend.