StreamHouse

What StreamHouse is

StreamHouse is an open-source, self-hostable system for event streaming, processing, schema management, and observability. It accepts events through REST, gRPC, or the Kafka protocol. Its built-in SQL engine can query streams and transform events in pipelines, including pipelines that continuously send transformed results to PostgreSQL. Data is stored in S3, which StreamHouse describes as S3-native storage. The schema registry supports JSON Schema, Avro, and Protobuf with compatibility checking. Listed pipeline sinks include PostgreSQL, S3, and Elasticsearch. For monitoring, the project lists Prometheus metrics, Grafana dashboards, and real-time WebSocket metrics. Access controls include organization-scoped isolation and API keys with permissions and topic scopes. Python and TypeScript SDKs are documented, and the homepage provides CLI installation options through Homebrew or a shell installer. StreamHouse describes its agents as stateless and scalable like web servers. The project is licensed under Apache License 2.0 and is presented as a developer-focused way to stream events into Postgres without Kafka or Flink.