After reflecting on the coming demise of xISBN, we decided to add an endpoint for free ebooks to the unglue.it API.
documentation at https://unglue.it/api/help
Free Ebooks by ISBN
With an API key, you can check if there's a free ebook for any ISBN. ISBNs can be 10 or 13 digits, and can include dashes. This service returns all free-licensed ebooks for a work associated with an ISBN, and for each ebook includes information about file type, rights, and the provider hosting the file.
For example, here's how to get a list of ebook files for "Homeland".
JSON: https://unglue.it/api/v1/free/?isbn=9780765333698&format=json&api_key={your_api_key}&username={your_username}
{
"meta": {"total_count": 3},
"objects": [
{"filetype": "pdf", "href": "/download_ebook/2576/", "provider": "Internet Archive", "rights": "CC BY-NC-ND"},
{"filetype": "epub", "href": "/download_ebook/2577/", "provider": "Internet Archive", "rights": "CC BY-NC-ND"},
{"filetype": "mobi", "href": "/download_ebook/2578/", "provider": "Internet Archive", "rights": "CC BY-NC-ND"}
]
}
XML: https://unglue.it/api/v1/free/?isbn=9780765333698&format=xml&api_key={your_api_key}&username={your_username}
<response>
<objects type="list">
<object>
<href>/download_ebook/2576/</href>
<filetype>pdf</filetype>
<provider>Internet Archive</provider>
<rights>CC BY-NC-ND</rights>
</object>
<object>
<href>/download_ebook/2577/</href>
<filetype>epub</filetype>
<provider>Internet Archive</provider>
<rights>CC BY-NC-ND</rights>
</object>
<object>
<href>/download_ebook/2578/</href>
<filetype>mobi</filetype>
<provider>Internet Archive</provider>
<rights>CC BY-NC-ND</rights>
</object>
</objects>
<meta type="hash"
><total_count type="integer">3</total_count>
</meta>
</response>
Feedback welcome!
We'll soon be integrating Gitenberg ebooks into this feed, too.
Eric
Eric Hellman
President, Free Ebook Foundation
Founder, Unglue.it https://unglue.it/
https://go-to-hellman.blogspot.com/
twitter: @gluejar
