Product SiteDocumentation Site

AppStream 0.4.1


Infrastructure for distro-agnostic application-management tools

Edition 1

Matthias Klumpp


Michael Vogt

Canonical / Ubuntu / Debian

Richard Hughes

Fedora / RedHat

Vincent Untz


Legal Notice

Copyright © 2012-2013 the AppStream team. This material may only be distributed subject to the terms and conditions set forth in the GNU Free Documentation License (GFDL), V1.2 with no invariant sections or later (the latest version is presently available at


AppStream is a cross-distro effort for building aoftware-center applications. It provides specifications for things like an unified software metadata database, screenshot services and various other things needed to create user-friendly application-centers for (Linux) distributions.
1. About AppStream
1.1. What is AppStream?
2. Application Metadata
2.1. AppStream XML files
2.2. AppData XML files
3. Services
3.1. Screenshot service
4. Manual pages
5. AppStream API Reference