Simple Alerting CLI tool, built-in providers (e.g., sentry/datadog or slack/pagerduty), easy-to-learn YAML workflows (GitHub Actions-like syntax), freedom from vendor lock-in, 100% open sourced, free forever.

Pingdom/Cronitor free alternative (but the other way around and A LOT simpler, with A LOT more capabilities), suitable for developers, system admins, DevOps, and individuals with complex networking situations (think “onprem” or K8s clusters with no inbound).

Keep makes it easy to consolidate all your alerts into a single pane of glass and to orchestrate workflows to automate your end-to-end processes. Think of Keep like GitHub Actions for monitoring tools / Datadog Workflow Automation for any monitoring tool.