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 - [Provero](https://github.com/provero-org/provero) - A vendor-neutral, declarative data quality engine. Define checks in YAML and run anywhere. (2026)
 - [DataScreenIQ](https://datascreeniq.com) - A hosted real-time data quality screening API that returns PASS / WARN / BLOCK verdicts at the ingest boundary before data enters pipelines or warehouses. Detects schema drift, null spikes, and type mismatches in milliseconds. (2026)
 - [statguard](https://github.com/Mullassery/statguard) - Rust-native data quality and validation library with a Python API. Declarative contract DSL compiled to a columnar execution plan (Polars + Arrow + Rayon). Schema checks, drift detection (PSI + KS), anomaly detection, Delta Lake/Iceberg/Parquet/Avro/ORC support. 13–25× faster than pandera and Great Expectations. (2025)
+- [HighWater](https://github.com/FrankFu916/highwater) - A dependency-free, self-hosted monitor that watches tables (SQLite/Postgres/MySQL/ClickHouse), HTTP APIs and files for staleness, schema drift, null spikes and volume anomalies. YAML checks, live dashboard, Prometheus metrics, Slack/Discord/webhook alerts. (2026)
 
 ### Data Readiness Assessment