NO there is no Built-In Xconnect for Cassandra
But you can configure a JDBC resource to connect and extract metadata from Cassandra NoSQL database
Refer the link
Note: This is not a supported and tested combination.
The UCF option has been deprectated and will be removed from the product in a later version. You cannot use MITI bridges that are not fully certified anymore.
Cassandra is not supported at the moment. Support for Cassandra will be added as a Native scanner pretty soon.