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The Materialize connector in Estuary streams data from Estuary collections to Materialize as Kafka-compatible messages using Dekaf. Materialize connects directly to Estuary as a Kafka source, enabling continuously updated SQL views and real-time analytics without requiring a separate Kafka cluster.

• Kafka-compatible streaming from Estuary collections to Materialize
• Direct integration with Materialize’s Kafka source connector
• No separate Kafka cluster required between Estuary and Materialize
• Avro message format for structured streaming data
• Confluent Schema Registry-compatible endpoint for automatic schema discovery
• UPSERT envelope support in Materialize for maintaining the latest state of keyed records
• Configurable Kafka topic names for individual Estuary collection bindings
• Kafka or CDC deletion modes for controlling how deletions are represented
• Optional strict Kafka-compatible topic naming
• SASL/SSL authentication using the Estuary materialization name and an authentication token

Materialize connects to Estuary’s Dekaf endpoint using SASL_SSL with the PLAIN mechanism. After configuring the Kafka connection and Schema Registry connection, you can create a Materialize source using Avro and ENVELOPE UPSERT, then build continuously updated materialized views with standard SQL.