[Metadata Plugin] OpenLibraryPlus Metadata

[dunhill]

This plugin was created to extend Calibre’s capabilities by identifying and completing book metadata directly from OpenLibrary.
Its main purpose is to allow adding works without ISBNs, using OpenLibrary’s own identifiers (e.g. OL25898225M, OL625575W).

Key Features
Identification via OpenLibrary codes:
Add older or ISBN-less books to Calibre using OpenLibrary identifiers (Works and Editions).

Rich metadata extraction:
The plugin automatically retrieves:
• Title
• Author(s)
• Publisher
• Publication date
• Language
• Tags/subjects
• Rating (when available)
• Cover image

Plugin Options
Custom identifiers:
Enter in Calibre’s Ids field:
Código
openlibrary:OL625575W
or the full OpenLibrary link.

Example Usage
Add a book without ISBN to Calibre.
In the Ids field, enter:
Código
openlibrary:OL25898225M
Run Download metadata.

The plugin will automatically fill in title, author, publisher, date, language, tags, and cover.

Installation
Download the attached .zip file.
In Calibre: Preferences → Plugins → Load plugin from file.
Restart Calibre.
Add the plugin button to the toolbar or context menu.

Requirements
Calibre 6.0 or higher
Internet connection to access OpenLibrary

Use this MobileRead thread for questions and suggestions.
Contribute improvements: the plugin is designed to grow with community input.

License
GNU General Public License v3 (GPL-3)

Version History

Spoiler:

v1.0: First public release.
v1.1: Extended support for additional fields (publisher, language, tags, rating, cover).
v1.2: Fixed syntax/indentation errors, improved fallback and visual consistency. Also search by ISBN