The KDE Community
KContacts
It provides an API for contacts/address book data following the vCard standard (RFC 2425 / RFC 2426).
KContact Features
- vCard data model (see KContacts::Addressee).
- vCard input/output (see KContacts::VCardConverter).
- Contact group management (see KContacts::ContactGroup).
- Locale-aware address formatting (see KContacts::Address).
- Localized country name to ISO 3166-1 alpha 2 code mapping and vice verca (see KContacts::Address).