We're excited to launch native support for Apache Cassandra API in Azure Cosmos DB – offering you Cassandra as-a-service powered by Azure Cosmos DB. You can now experience the power of Azure Cosmos DBplatform as a managed service with the familiarity of your favorite Cassandra SDKs and tools—without any app code changes.
Azure Cosmos DB is the industry’s first fully managed globally distributed, massively scalable, and multi-model database service. It is designed to allow developers to elastically scale throughput and storage across any number of geographical regions worldwide—backed by industry-leading comprehensive SLAs including throughput, availability, consistency, and <10ms latency guarantees.
Read about it in the Azure blog.