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unglue (v. t.) 1. To pay an author or publisher for publishing a Creative Commons ebook.
unglue (v. t.) 2. To make a digital book free to read and use, worldwide.
unglue (v. t.) 3. To make it legal for a digital book to be used, distributed, archived and preserved by libraries.
unglue (v. t.) 4. For an author or publisher, to accept a fixed amount of money from the public for its unlimited use of an ebook.
unglue (v. t.) 5. To make your favorite books free to everyone on earth.
unglue (v. t.) 6. To reward authors and publishers for sharing books with the world.
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3 ways we can make ebooks free

MAKE
  
Creators make ebooks in EPUB, MOBI, and PDF.
Ungluers love them for doing it.
Creators apply Creative Commons licenses to ebooks.
Ungluers read them at home, at a library, anywhere.
ASK
Creators ask downloaders to contribute what they choose.
Ungluers say thank you with their support.
MAKE
  
Creators make ebooks in EPUB.
Ungluers love them for doing it.
ASK
Creators set a funding goal and a per-copy price.
Ungluers purchase the ebook to advance the campaign.
When the funding goal is met, Creative Commons licenses are automatically applied.
ASK
Creators set a funding goal and rewards for supporters.
Ungluers pledge to support the campaign.
MAKE
  
When the campaign succeeds, We collect Ungluer pledges.
The ebook is created and rewards are distributed.
Creative Commons licenses are applied.
Ungluers read them at home, at a library, anywhere.

API Help

Some of the data from Unglue.it is avaiable via a JSON API. You will need a key and username to be able to use the API.

Please sign in first.

Basic API info

Available Resources (JSON)

Resources on this list can be accessed via https://unglue.it/api/v1/{resource_on_list}/?format=json&api_key={your_api_key}&username={your_username} .

Works can be ordered by how often they've been favorited; append &order_by=num_wishes (ascending) or &order_by=-num_wishes (descending).

Campaign Widgets

You don't need a key to embed campaign (HTML) widgets.

Here's a sample widget for the book Riverwatch with ISBN 9780743480406: https://unglue.it/api/widget/9780743480406/

OPDS Catalog Feeds

We have a basic implementation of OPDS feeds. You don't need a key to use them. The starting point is https://unglue.it/api/opds/

There's also an OPDS record available for every work on unglue.it. For example, requesting, https://unglue.it/api/opds/all/?work=13950 get you to the web page or opds record for A Christmas Carol.

ONIX Catalog Feeds

There is an ONIX 3.0 feed corresponding to every facet of our free ebook lists. You don't need a key to use them. There is a maximum of 100 books per result you can change with the max parameter. For example, here are the first hundred CC BY-ND-ND licensed books available in EPUB.

There's also an ONIX record available for every free ebook on unglue.it. For example, here is Issues in Open Research Data.

Identifiers with Content type negotiation

There's a URI to identify every work used in OPDS feeds. HTTP content negotiation is used for these ids, so requesting application/atom+xml;profile=opds-catalog;kind=acquisition for https://unglue.it/api/id/work/13950/ get you to the web page or opds record for A Christmas Carol. requesting text/xml gets you the onix record. Otherwise, you get the normal html page.