The complete platform for book collectors.

We offer three tiers: Bookshelf ($9.99/mo for cataloging), Library ($19.99/mo with AI analysis and marketplace access), and Vault ($39.99/mo with bulk operations and API). BookLens™ evaluations start at 10/month with Bookshelf and increase with higher tiers. Each plan builds on the previous one, so you only pay for the features you need.

BookLens™ analyzes real market data from multiple sources, applies ABAA grading standards, and factors in edition points, condition, provenance, and recent sales comps. Every evaluation includes a transparent rationale—not just a number. Complex or high-value items are flagged for expert review. We show our work, not just our conclusion.

Digital Passports document your book's provenance, condition history, and verified details—creating a permanent record that travels with the book. Achievement Stamps recognize milestones like first editions, signed copies, completion of sets, or rare finds. Together, they build trust, prove authenticity, and preserve your collection's story for future owners or heirs.

Page & Provenance is an ecosystem, not a store. We provide evaluation tools (HonestBookAI™), cataloging systems (Vault, Library), educational resources (Collecting Guide, Glossary), provenance tracking (Digital Passports), and yes—a verified marketplace where transparency is built in. You can use the tools without ever buying or selling a book.

Vault-tier subscribers get API access to integrate BookLens™ evaluations, catalog management, and passport data into their own applications. Perfect for dealers, auction houses, or collectors building custom workflows. Full documentation, rate limits, and webhook support included. This is for power users who want to build on top of our infrastructure.

No—it augments it. BookLens™ handles pattern recognition, data analysis, and grading consistency at scale. But nuanced judgment, historical context, and authentication of truly rare items still require human expertise. We flag cases that need expert review and make it easy to consult professionals when your collection demands it. Think of it as a highly trained research assistant, not a replacement dealer.