Alerta

Alerta is an open-source alert management system designed to collect, deduplicate, route, escalate, and resolve alerts from diverse monitoring and telemetry sources. It provides a centralized place to manage incidents and alerts across teams, tools, and environments, enabling faster response and coordinated on-call work.

Key features of Alerta include a RESTful API, a web-based user interface, and multi-tenant support. Alerts can be created, updated, acknowledged, silenced, or resolved, and the system supports deduplication and correlation to reduce alert noise. Routing rules and escalation paths allow alerts to be directed to the appropriate on-call teams or notification channels. The platform also supports silences and time-based schedules, as well as tagging, grouping, and filtering to help organize incidents. Alerta is designed to integrate with a wide range of monitoring systems and communication tools, often acting as a central hub that feeds other incident responders such as paging systems or chat channels.

Architecturally, Alerta comprises an API server, a database backend for storing alerts, a web UI for operators, and a set of receivers or integrations that push alerts to external systems (for example, chat apps, ticketing systems, or paging services). Alerts typically include fields such as event, environment, service, resource, severity, status, and history, enabling structured workflows and reporting.

The project is used in various organizations seeking a lightweight, pluggable solution to unify alerts from multiple tools, reduce duplication, and streamline incident response. It is maintained by an open-source community and can be deployed on-premises or in the cloud, commonly via containers or orchestration platforms.