Librario, a book metadata API that aggregates G Books, ISBNDB, and more
TLDR: Librario is a book metadata API that aggregates data from Google Books, ISBNDB, and Hardcover into a single response, solving the problem of no single source having complete book information. It's currently pre-alpha, AGPL-licensed, and available to try now[0]. My wife and I have a personal library with around 1,800 books. I started working on a library management tool for us, but I quickly realized I needed a source of data for book information, and none of the solutions available provided all the data I needed. One might provide the series, the other might provide genres, and another…
Librario, a book metadata API that aggregates G Books, ISBNDB, and more launched on January 10, 2026 with 140 votes, #224 of 14,584 launches that month and more than 95% of that year's launches.
In plain words
Librario is a book metadata API that combines data from Google Books, ISBNDB, and Hardcover into single responses. It's built for developers creating library management tools and other book-related applications that need comprehensive book information—including series, genres, and cover images—from a single source. The tool is currently pre-alpha, written in Go, and AGPL-licensed.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
TLDR: Librario is a book metadata API that aggregates data from Google Books, ISBNDB, and Hardcover into a single response, solving the problem of no single source having complete book information. It's currently pre-alpha, AGPL-licensed, and available to try now[0]. My wife and I have a personal library with around…
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I built library management app for those who outgrew spreadsheets2025 · librari.io · ▲92I've been working on librari.io for the past several months and just launched the beta version. The Problem: I have 500+ books across multiple rooms in my house and was desperately looking for an app to manage them properly. Most library management apps are either too basic or designed for institutional libraries with rigid workflows that don't fit personal use. What I Built: - Multiple libraries: manage collections in different locations - Location tracking - remember exactly which shelf each book is on - Loan management - track books you've lent to friends - Custom fields & tags - store…
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