Store directly to Apache Iceberg™ tables and guarantee data quality with Bufstream, a drop-in replacement for Apache Kafka®.
Bufstream replaces traditional disks with object storage, the most reliable and cost-effective cloud storage primitive. By eliminating expensive network-attached volumes and delegating cross-zone data replication to object storage Bufstream reduces cloud costs 8x compared to Apache Kafka — while remaining fully compatible with Kafka clients, connectors, and tools.
Bufstream natively writes your data to S3-compatible object storage as Iceberg tables with zero copies. Eliminate the need for a costly ETL pipeline and start querying your data in seconds.
Bufstream eliminates bad data at the source: rather than hoping that every producer will opt into validation, Bufstream agents work with the Buf Schema Registry to enforce quality controls for all topics with Protobuf schemas. Bad data is immediately rejected, so consumers can trust that the data they receive will always match the appropriate schema and adhere to any semantic constraints.
Your data is your most valuable, sensitive asset — you should own it. Bufstream runs fully within your AWS or GCP VPC, without any dependencies on external services.
With Bufstream, you can enforce fine-grained access controls at the field level, ensuring that only the right people see the right data.
Bufstream pricing is simple and predictable: just $0.002 per uncompressed GiB written (about $2 per TiB). We don't charge any per-core, per-agent, or per-call fees.
