Open Publication Distribution System


The Open Publication Distribution System catalog format is a syndication format for electronic publications based on Atom and HTTP. OPDS catalogs enable the aggregation, distribution, discovery, and acquisition of electronic publications. OPDS catalogs use existing or emergent open standards and conventions, with a priority on simplicity.
The Open Publication Distribution System specification is prepared by an informal grouping of partners, combining Internet Archive, O'Reilly Media, Feedbooks, OLPC, and others.

History

OPDS is based on the initial work done by Lexcycle, the company behind Stanza, an eBook reader application for iOS. All revisions of the specification were produced by an informal group organized around an open mailing list.

OPDS software

Many e-readers or e-book reading applications support importing books from an OPDS catalog. E-book management applications such as Calibre also often include OPDS server software to make an e-book collection available through an OPDS catalog.

Example of OPDS 1.1 content

An example of an acquisition feed in OPDS:

xmlns:dc="http://purl.org/dc/terms/"
xmlns:opds="http://opds-spec.org/2010/catalog">
urn:uuid:433a5d6a-0b8c-4933-af65-4ca4f02763eb
href="/opds-catalogs/vampire.farming.xml"
type="application/atom+xml;profile=opds-catalog;kind=acquisition"/>
href="/opds-catalogs/unpopular.xml"
type="application/atom+xml;profile=opds-catalog;kind=acquisition"/>
href="/opds-catalogs/root.xml"
type="application/atom+xml;profile=opds-catalog;kind=navigation"/>
href="/opds-catalogs/root.xml"
type="application/atom+xml;profile=opds-catalog;kind=navigation"/>
<a href="/wiki/Unpopular">Unpopular</a> <a href="/wiki/Publications">Publications</a>
2010-01-10T10:01:11Z

Spec Writer
http://opds-spec.org


Bob, Son of Bob
urn:uuid:6409a00b-7bf2-405e-826c-3fdff0fd0734
2010-01-10T10:01:11Z

Bob the Recursive
http://opds-spec.org/authors/1285

en
1917
term="FIC020000"
label="FICTION / Men's Adventure"/>
The story of the son of the Bob and the gallant part he played in
the lives of a man and a woman.

href="/covers/4561.lrg.png"
type="image/png"/>
href="/covers/4561.thmb.gif"
type="image/gif"/>
href="/opds-catalogs/entries/4571.complete.xml"
type="application/atom+xml;type=entry;profile=opds-catalog"
title="Complete Catalog Entry for Bob, Son of Bob"/>
href="/content/free/4561.epub"
type="application/epub+zip"/>
href="/content/free/4561.mobi"
type="application/x-mobipocket-ebook"/>


Modern <a href="/wiki/Online">Online</a> <a href="/wiki/Philately">Philately</a>
urn:uuid:7b595b0c-e15c-4755-bf9a-b7019f5c1dab

Stampy McGee
http://opds-spec.org/authors/21285


Alice McGee
http://opds-spec.org/authors/21284


Harold McGee
http://opds-spec.org/authors/21283

2010-01-10T10:01:10Z
Copyright 2009, Stampy McGee
urn:isbn:978029536341X
StampMeOnline, Inc.
en
2009-10-01
The definitive reference for the web-curious
philatelist.

href="/covers/11241.lrg.jpg"
type="image/jpeg"/>
href="/content/buy/11241.epub"
type="application/epub+zip">
18.99
11.99


OPDS catalogs

Dozens of OPDS catalogs are available online, and in many different languages.
Many users of OPDS also create their own OPDS catalog, as a way to access their ebooks from any device.
Developers implementing an OPDS catalog usually use the Feedbooks catalog as an example of a fully featured catalog. An OPDS validator is also available to test OPDS feeds.