The metadata toolbox for publishers. See your books the way the industry, the Library of Congress, libraries and retailers see them, get alerted when anything changes, and fix what's wrong with professional cataloging tools.
Add your ISBNs once. Every day Quoinlock checks the record of truth, the retailers and the libraries, and tells you what changed.
Price, availability and metadata from Amazon, Barnes & Noble, Bookshop.org, Google Books and up to 44 retail, independent and library sources, checked every day.
See your official ISBN record (38+ fields, from dimensions to BISAC subjects) side by side with Ingram distribution data and what retailers actually show.
Know when a price moves, a listing appears or disappears, your official record changes, or the Library of Congress assigns your LCCN. Delivered instantly or as a daily or weekly digest.
Library data is metadata too. Quoinlock brings the Library of Congress and the world's research libraries into the same view as your retail listings.
Your LoC MARC record and LCCN, refreshed daily, with decoded cataloging-agency codes, MARCXML download and side-by-side MARC comparison between any two ISBNs.
Query the catalogs of roughly 50 national, state, research and university libraries to see exactly how each one has catalogued any ISBN.
Estimate a Library of Congress call number from LC's own classification data, with an author Cutter fitted against LC's shelflist.
Tools that used to need a cataloger, a consultant or an expensive desktop app, built on the same official and Library of Congress data.
Produce a Publisher's Cataloging-in-Publication block for your copyright page, with subject headings, LC and Dewey classification and author dates, in modern or legacy card format.
Turn an ISBN into a schema-valid ONIX 2.1, 3.0 or 3.1 record, built from the official ISBN record and enriched from the Library of Congress, with per-field provenance and full editing.
Find your authors' ISNI, LC Name Authority and ORCID identifiers across VIAF, ISNI, the Library of Congress, ORCID and Wikidata, with confidence levels and next steps when there's no match.
Also included: Quick ISBN Lookup, Publisher Lookup, mobile barcode scanning, a weekly watch summary, and record, MARCXML and ONIX downloads. Explore every feature →
The Free plan monitors up to 2 ISBNs with the Base source package and every tool included. No credit card, no expiry.
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