Cabot
Cabot: A flexible open-source monitor for teams prepared to operate their own stack. Ranked #29 of 48 in Uptime Monitoring Software by our editors (6.6/10); pricing: Free plan; best for self-hosters wanting extensible service checks.
At a glance
- Editor score6.6 / 10
- PricingFree plan
- Best forSelf-hosters wanting extensible service checks
- Free planYes
- Paid fromNone
- Facts checked20 Sep 2026
Where it wins
- Checks HTTP endpoints, metrics, Jenkins jobs, and host availability
- Supports email, Slack, SMS, telephone, and Hipchat alerts
- Offers plugins, service grouping, SSL checks, and a browsable API
Where it doesn't
- Requires self-hosting and operational ownership
- Not actively maintained according to the official repository
- Current ownership is unclear
Our verdict on Cabot
Cabot is a free, open-source, self-hosted monitoring platform for technical teams managing websites, infrastructure, services, and operational metrics. It runs through web, API, and self-hosted deployments, with checks for HTTP endpoints, Graphite metrics, Jenkins jobs and builds, and host availability through ICMP ping. Its service and instance grouping helps organize checks around services and the hosts that provide them. Cabot suits teams that want control over deployment and alerting rather than a hosted monitoring service.
The feature set is broad for an open-source monitor. HTTP checks can evaluate status codes, timeouts, debounce behavior, and regular-expression text matches. Graphite and Jenkins integrations extend monitoring into metrics and delivery workflows, while plugins add further checks and alert channels. Alert destinations include email, Slack, SMS, telephone, and Hipchat. Cabot also supports SSL certificate expiration checks through a plugin, duty rota synchronization through an iCalendar feed, and authenticated access to a browsable API. Deployment and ecosystem integrations include PostgreSQL, Redis, Docker, Kubernetes, Twilio, and Google Calendar.
Cabot's main trade-off is operational responsibility. Teams must deploy and maintain the platform themselves, and the official repository describes it as stable but not actively maintained. That makes its extensibility and free open-source model more suitable for self-hosters with the technical capacity to manage their monitoring stack and assess long-term maintenance needs. Teams seeking an actively maintained hosted service, or a product with vendor-managed operations, should choose an alternative. Cabot is a practical fit when customizable checks, service grouping, and broad alerting matter more than managed delivery.
Cabot pricing
Cabot fact sheet
| Free plan | Yes |
|---|---|
| Paid from | None |
| Monitor limit | Not verified |
| Check interval | Not verified |
| Monitoring locations | Not verified |
| SSL expiry alerts | Yes |
| Keyword monitoring | Yes |
| Server monitoring | Yes |
| Alert channels | email, Hipchat, Slack, SMS, telephone, webhooks |
| Deployment | Self-hosted |
| Platforms | Web |
| Support | Community, Docs |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 10 integrations: Graphite, Jenkins, Slack, Hipchat, Twilio, Google Calendar … |
| Pricing | Free plan |
| Website | cabotapp.com |
| Facts checked | 20 Sep 2026 |
Cabot integrations
Cabot lists 10 integrations on its own site.
- Graphite
- Jenkins
- Slack
- Hipchat
- Twilio
- Google Calendar
- PostgreSQL
- Redis
- Docker
- Kubernetes
Alternatives to Cabot
- SolidPingBroad protocol coverage, status pages, and on-call tools, with hosted plans from €5 per month.9.4
- HyperpingBroad hosted checks and response workflows, with paid plans starting at $24 per month billed annually.9.3
- UptimiaBroad monitoring coverage with selectable global checkpoints and plans for different check volumes.9.2
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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