DataStax Astra Streaming

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Output—per 1M tokens

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About

DataStax Astra Streaming is ranked #6 of 22 in event streaming platforms on Inferse. It runs on API, Self-hosted, Web. There is a free plan.

Compared on event streaming platforms

Free plan: Yesdocs.datastax.com
Deployment model: clouddocs.datastax.com
Stream processing: Yesdocs.datastax.com
Schema registry: Yesdocs.datastax.com
Supported client languages: C#, Golang, Java, Node.js, Python, Spring Bootdocs.datastax.com

Facts

Service: Astra Streaming is a fully managed SaaS for data streaming and event stream processing, powered by Apache Pulsar.docs.datastax.com · 3 Oct 2026
Use cases: The service provides unified messaging for streaming, pub/sub, and queuing, and supports real-time event processing and change data capture.docs.datastax.com · 3 Oct 2026
Management: Users can manage Pulsar tenants and resources including topics, connectors, functions, and subscriptions through the Astra Portal, APIs, or related tools.docs.datastax.com · 3 Oct 2026
Client libraries: Applications can connect using open-source Apache Pulsar client APIs; the service runs Pulsar 3.1 and recommends that API version or higher.docs.datastax.com · 3 Oct 2026
Integrations: Included sink connectors support Astra DB and Cassandra, Kafka, AWS Kinesis, Cloud Storage, Elasticsearch, BigQuery, JDBC databases, and Snowflake.docs.datastax.com · 3 Oct 2026
Source connectors: Included source connectors support Kafka, AWS Kinesis, data generation, and Debezium for MongoDB, MySQL, Oracle, PostgreSQL, and SQL Server.docs.datastax.com · 3 Oct 2026
Connector limitation: Astra Streaming does not support custom source or sink connectors, and experimental connectors are not fully supported or tested.docs.datastax.com · 3 Oct 2026
Security: Shared tenants use Pulsar authentication and authorization alongside Astra organization RBAC, with tenant-scoped roles and permissions.docs.datastax.com · 3 Oct 2026
Transport and private networking: Connections use authentication, authorization, and TLS; private connectivity is available for Streaming Capacity Units, not shared clusters.docs.datastax.com · 3 Oct 2026
Pricing model: Astra Streaming offers a free tier, while its serverless model charges for resources used; dedicated Streaming Capacity Units are billed separately with customer-specific pricing.docs.datastax.com · 3 Oct 2026
Shared cluster limits: Shared clusters allow up to 10 tenants per organization, 20 namespaces per tenant, 100 topics per namespace, and 5 MB messages.docs.datastax.com · 3 Oct 2026
Throughput limits: On shared clusters, the per-topic producer, consumer, and subscription throughput guardrail is 5,000 messages per second and 25 MB per second.docs.datastax.com · 3 Oct 2026
Support: The documentation directs customers to IBM Support for requests such as private connectivity and unavailable regions.docs.datastax.com · 3 Oct 2026
Audience: DataStax describes Astra Streaming as serving enterprise mission-critical workloads as well as mid-market, small-business, and individual developer use cases.docs.datastax.com · 3 Oct 2026