CardDAV libraries

CardDAV libraries by language.

Python

• vobject — vCard parsing.
• caldav — Also supports CardDAV operations.

JavaScript / TypeScript

• tsdav — CalDAV/CardDAV client.
• vcard-json — vCard parsing.

Java

• ez-vcard — vCard parsing and generation.
• Sabre/DAV (via PHP bridge)

PHP

• Sabre/DAV — Full CardDAV framework.

Go

• go-webdav — WebDAV/CardDAV client.

Ruby

• vcard — vCard parsing.