Materialize vs Siddhi
Materialize
materialize.comSiddhi
siddhi.ioSide by side
| Figure | Materialize | Siddhi |
|---|---|---|
| Price from | $0.13/mo | — |
| Free plan | Yes | — |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | — |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 4 | 0 |
| Spec score · Stream Processing Software | 8.0 (#10) | 7.3 (#22) |
| Spec score · Stream Analytics Software | 8.1 (#12) | 7.4 (#21) |
| Deployment | Materialize is offered as a fully managed Cloud service, self-managed software for Kubernetes environments, and a Docker-based local development Emulator. | Siddhi can run embedded as a Java or Python library, as a microservice on bare metal or a VM, in Docker, or on Kubernetes. |
| Integrations | The integrations page lists PostgreSQL, MySQL, SQL Server, CockroachDB, Kafka, Model Context Protocol, dbt and webhooks, including EventBridge and Segment. | Supported event sources and destinations listed include Kafka, NATS, RabbitMQ, HTTP, gRPC, JMS, MQTT, Amazon SQS, Google Pub/Sub, email, files, and WebSocket. |
| Product | Materialize describes itself as a live data layer for apps and AI agents that creates up-to-the-second views using SQL. | Siddhi is an open source stream and complex event processing engine for building event-driven applications. |
| Support | Cloud On-Demand includes chatbot and helpdesk ticket support, while Cloud Capacity includes a dedicated account team and guided onboarding. | The site links to community support resources including a mailing list, contribution information, and security reporting. |
Plans
Materialize
- Community LicenseFree
- Cloud Capacity$1.50 a year
- Cloud On-Demand$1.50 a month
- Enterprise LicensePrice not published
In their own words
Materialize
Materialize is a live data layer for apps and AI agents that uses SQL to create up-to-the-second views. Rather than rebuilding query results from scratch as data arrives, it updates them incrementally. Connected sources appear as continually updating tables with sub-second freshness. SQL features include multi-way, lateral, and outer joins, recursive SQL, and SUBSCRIBE, which streams query-result changes over a standard Postgres connection.
Materialize is wire-compatible with PostgreSQL and supports clients and tools that work with PostgreSQL. Listed integrations include PostgreSQL, MySQL, SQL Server, CockroachDB, Kafka, Model Context Protocol, dbt, and webhooks such as EventBridge and Segment. Transformed updates can go to downstream systems including Kafka and Apache Iceberg. It is available as managed Cloud, self-managed Kubernetes software, and a Docker-based local development Emulator. The free self-managed Community Edition is limited to 24 GiB memory and 48 GiB disk. Cloud On-Demand is $1.50 a month, with usage-based compute, storage, and networking; Cloud Capacity is $1.50 a year, with storage and networking billed separately.