Nightingale
Open-source, self-hosted alerting for metrics, logs, and databases. Includes a built-in AI agent and MCP server.
Nightingale is an open-source alerting engine designed to work with existing monitoring stacks. It can evaluate alerts from multiple backends such as Prometheus, VictoriaMetrics, Elasticsearch, ClickHouse, and Loki. A single alert rule can span several data sources.
Since version 9, the Nightingale process itself acts as an MCP server. Nightingale supports 20 notification channels for alert delivery. Nightingale is self-hosted and offered under the Apache-2.0 license.
Summary drafted from the project's own website. Every sentence is backed by text on that page and was reviewed before publishing.