Amazon Neptune is a fully-managed graph database service used to work with highly connected datasets. It supports multiple graphs, including Property Graph and W3C's RDF, along with their respective query languages Apache TinkerPop, Gremlin, and SPARQL. Neptune is highly available including read-only replicas, point-in-time recovery, and continuous backup to Amazon S3.
Amazon Neptune was announced on November 29, 2017 by Amazon Web Services with a limited preview of the service. On May 30, 2018, Neptune became fully available. Due to use cases involving private data, Neptune because HIPAA eligible on September 12, 2018 and complied with the Payment Card Industry Data Security Standard on December 12, 2018.