CardDAV is an address book client/server protocol designed to allow users to access and share contact data on a server.

The CardDAV protocol was developed by the IETF and has been published as RFC 6352.^[1] CardDAV is based on WebDAV, which is based on HTTP and it uses vCard for contact data.^[2]

History [link]

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Specification [link]

The specification is currently a proposed standard RFC published by IETF.

Implementations [link]

The following products implement the server-side portion of the CardDAV protocol: .

• Apple Address Book Server.^[3][4]
• CommuniGate Pro supports CardDav protocol.^[5]
• DAViCal supports CardDAV from version 0.9.9.2^[6]
• fruux, a synchronization service, supporting CardDAV
• Meishi, a standalone, Ruby on Rails based CardDAV server^[7]
• Memotoo, a synchronization service, supporting CardDAV
• OpenLink Data Spaces, a data integration framework and suite of associated Web applications
• OpenLink Virtuoso, a hybrid middleware and database server, since version 6.5 (Commercial Edition) and 6.1.5 (Open Source Edition)
• ownCloud supports CardDAV protocol since version 2.0.
• SabreDAV, a WebDAV framework for PHP, supports CardDAV since version 1.5.^[8]
• Zimbra 6 allows access to its address book via CardDAV.^[9]

The following products implement the client-side portion of the CardDAV protocol:

• Apple Address Book in Mac OS X v10.6 "Snow Leopard".^[10]
• Apple iOS, starting from iOS 4.^[11]
• Atmail supports a complete CardDAV client via the Webmail interface^[12]
• CardDavMATE, open source HTML5+Javascript CardDav client (web application)^[13]
• Evolution - Works as WebDAV contacts. Except perhaps not currently (version 2.30, 2.31) other than https on port 443.^[14]
• Kerio Connect^[3][15]
• KDE Software Compilation 4.5 will feature CardDAV client support, due in August 2010. It will be available for use by Kaddressbook, which is part of Kontact PIM suite. It will be provided by Akonadi: a PIM server which will also make the data available to other applications.^[16]
• OpenLink Data Spaces, a data integration framework and suite of associated Web applications
• OpenLink Virtuoso, a hybrid middleware and database server, since version 6.5 (Commercial Edition) and 6.1.5 (Open Source Edition)

See also [link]

• Comparison of CalDAV and CardDAV implementations
• WebDAV
• CalDAV
• GroupDAV
• vCard
• SyncML

References [link]

1. ^ CardDAV Resources, CalConnect, https://carddav.calconnect.org/index.html, retrieved April 10, 2010 
2. ^ CardDAV: Related Standards, CalConnect, https://carddav.calconnect.org/standards.html, retrieved April 11, 2010 
3. ^ ^{a b} Implementations: CardDAV Servers, CalConnect, https://carddav.calconnect.org/implementations/servers.html, retrieved April 10, 2010 
4. ^ Mac OS X Server: Address Book Server, Apple Inc, https://www.apple.com/server/macosx/features/addressbook-server.html, retrieved April 10, 2010 
5. ^ CommuniGate Pro support of CardDav, https://www.communigate.com/cgatepro/WebDAV.html#CardDAV, retrieved April 21, 2011 
6. ^ DAViCal release 0.9.9.2, Freshmeat, https://freshmeat.net/projects/davical/releases/322141, retrieved September 24, 2010 
7. ^ Meishi, Github, https://github.com/inferiorhumanorgans/meishi, retrieved March 30, 2012 
8. ^ SabreDAV 1.5 released with CardDAV support, dmfs, https://www.rooftopsolutions.nl/blog/sabredav-15-released-with-carddav-support, retrieved September 11, 2011 
9. ^ Yoon Lee, Jong (September 25, 2009), Zimbra Server: CardDAV server, Zimbra/VMWare Inc, https://bugzilla.zimbra.com/show_bug.cgi?id=22008#c25, retrieved April 24, 2010 
10. ^ Implementations: CardDAV Clients, CalConnect, https://carddav.calconnect.org/implementations/clients.html, retrieved April 10, 2010 
11. ^ Eran Dilger, Daniel (June 25, 2010), iPhone 4 and iOS vs. Android: desktop and cloud services, AppleInsider, https://www.appleinsider.com/articles/10/06/25/iphone_4_and_ios_vs_android_desktop_and_cloud_services.html&page=3, retrieved July 24, 2010 
12. ^ Atmail Client: CardDAV interface, Atmail, https://atmail.com/webmail-client/address-book/, retrieved May 26, 2010 
13. ^ CardDavMATE, Ján Máté, https://www.inf-it.com/, retrieved Februar 18, 2012 
14. ^ CardDAV/Clients, https://wiki.davical.org/w/CardDAV/Clients, retrieved February 19, 2012 
15. ^ Kerio Connect, Kerio Technologies, https://www.kerio.com, retrieved April 10, 2010 
16. ^ Koenig, Tobias (February 4, 2010), CalDAV/CardDAV/GroupDAV Support for Akonadi, Blogspot, https://tokoe-kde.blogspot.com/2010/02/caldavcarddavgroupdav-support-for.html, retrieved April 24, 2010 

External links [link]

• The Internet Engineering Task Force (IETF)
• CardDAV Resources

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