Open Publication Distribution System

Open Publication Distribution System
Internet media type
application/atom+xml;profile=opds-catalog
Initial release5 May 2010 (2010-05-05)
Latest release
OPDS 1.2
11 November 2018 (2018-11-11)
Type of formatweb syndication
Extended fromAtom
Open format?Yes
Websiteopds.io

The Open Publication Distribution System (OPDS) 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.