optiop/oncall

Grafana OnCall is an open-source incident response and on-call management tool with deep Slack integration, designed for developers to handle alerts and escalations from multiple monitoring systems. It offers on-call scheduling, automatic escalations, and notifications via phone, SMS, and messaging platforms, with a mobile app for iOS and Android. Although it's now in maintenance mode since March 2025, it remains a viable option for teams seeking a self-hosted solution until its archive date in March 2026.