Akonadi is a storage service for personal information management (PIM) data and metadata named after the oracle goddess of justice in Ghana.
[3][4] It is one of the “pillars” (core technologies) behind the KDE SC 4 project, although it is designed to be used in any desktop environment.
In KDE 3 each PIM application had different data storage and handling methods, which led to several implementations of essentially the same features.
Akonadi communicates with servers to fetch and send data instead of applications through a specialized API.
The Mailody developer Tom Albers demonstrated how a mail reader could be created in only 10 minutes using Akonadi.