Sentinel
7.5#6 in api monitoring toolsFrom $14 a monthFree planWebAPIExtensionmacOS
VisitSentinel vs Tallwatch
What both publish
| Fact | Sentinel | Tallwatch |
|---|---|---|
| CLI | The CLI is installed with npm, requires Node.js 18 or newer, supports CI/CD workflows and manages monitors, incidents, teams, webhooks and status pages. | The CLI manages monitors and incidents, runs test probes and supports UptimeRobot imports from a terminal. |
| Data retention | Terms state that monitoring data is retained for 30 days on Free, 90 days on Pro and one year on Business. | The terms state that after termination account data is retained for 90 days to allow reactivation and then permanently deleted. |
Sentinel plans
- FreeFree
- Starter$14 a month
- Pro$29 a month
- Business$79 a month
Tallwatch plans
- FreeFree
- Pro$14.99 a month
- Business$24.99 a month
Pick Sentinel if…
Sentinel suits digital agencies, freelance developers and designers, and SaaS teams that manage one or more sites. It offers monitoring, status pages, and incident history for those services.
Pick Tallwatch if…
Tallwatch suits teams monitoring websites or APIs that want regional checks, incident routing, and status pages. Its API, CLI, and hosted MCP endpoint may also suit developers managing monitors programmatically.