Sentinel has 4 plans: a free plan and paid plans from $12/month. We last read its pricing page on 18 September 2026. We have not recorded a price change.
Sentinel plans and prices
Free
$0
Capacity Monitors — 10
Check interval — 5 min
Team members — 1
Monitor types — HTTP / HTTPS uptime
Notifications — Email
Public status pages — 1
Multi-region checks (4 regions)
Desktop app (macOS menu bar)
Show all 10 featuresShow fewer
Public API access — Read-only
AI assistant (MCP) — Read tools
Starter
monthly
$12/mo
yearly$12/mobilled annually ($144/yr)
Capacity Monitors — 25
Check interval — 1 min
Team members — 1
Heartbeat / cron jobs
Notifications — Slack
SMS outage alerts (US & Canada)
Status pages & client reports — 5
Pro
monthly
$24/mo
yearly$24/mobilled annually ($288/yr)
Capacity Monitors — 100
Check interval — 1 min
Team members — 5
Everything in Starter
Full API: Terraform, provisioning, AI assistants that act
Signed webhooks into PagerDuty, Rootly + your own automation