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Moira vs Sensu: catalog facts
Moira	Sensu
Free Free and open source; you host it yourself.	Freemium Free download, with paid plans listed on the pricing page.
Self-hosted	Windows, Linux, Self-hosted, Command line
Realtime alerting on Graphite and Prometheus metrics Separate API, checker and notifier services	Monitoring defined as code and applied with sensuctl Routes check results to alerting and automation handlers
Needs an existing Graphite or Prometheus metrics setup Several services to deploy and maintain	Aimed at operations teams rather than single desktops Some features are part of paid plans
Self-hosted	Downloadable app, Self-hosted
Open source	Closed source
License not stated	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.