It's a basic Apache Kafka Connect Sink Connector which allows moving data from Kafka topics into Neo4j via Cypher templated queries....Less
Use the Confluent Hub client to install this connector with:
confluent-hub install neo4j/kafka-connect-neo4j:1.0.0
Or download the ZIP file and extract it into one of the directories that is listed on the Connect worker's plugin.path configuration properties. This must be done on each of the installations where Connect will be run. See here for more detailed instructions.
Once installed, you can then create a connector configuration file with the connector's settings, and deploy that to a Connect worker. See here for more detailed instructions.