Keymetrics
Keymetrics develops monitoring for Node.js server infrastructure using the open-source PM2 process manager.
What Keymetrics is
Keymetrics develops monitoring for Node.js server infrastructure using the open-source PM2 process manager. PM2 Plus provides a real-time web interface for production monitoring, issue and exception tracking, deployment reporting, logs, custom metrics, custom actions, and email, Slack, or webhook notifications. Its views show apps and databases together in real time or in history, with an aggregate view across applications. For debugging, the issue dashboard can show when an error occurred, which servers were affected, its stack trace and code line, and preceding logs. The @pm2/io library lets Node.js applications expose values, counters, meters, and histograms as custom metrics. PM2 Enterprise is described for high-scale or critical Node.js services and adds customizable dashboards, threshold-based alerts, stored logs, and production CPU and memory profiling. It can be installed on-premise or delivered as dedicated or managed instances. Runtime is listed as free; Plus is $79 a month, with monitored-process limits, and Enterprise has no listed price. The product facts also list a 14-day trial and a starting price of $39/mo. PM2 Plus processes above plan limits are automatically ignored.
Good
- Real-time monitoring interface and issue tracking
- Debugging view includes stack traces and preceding logs
- Custom metrics available through @pm2/io
- Enterprise offers on-premise or managed deployment
Watch out
- PM2 Plus applies monitored-process limits
- Processes above the limit are automatically ignored
Who it suits
Keymetrics suits teams monitoring Node.js services with PM2. Enterprise is positioned for high-scale or critical services that need its added dashboards, alerts, logs, or profiling.
Verdict
Keymetrics combines PM2-based monitoring with debugging and custom metrics, while Enterprise adds profiling and alerting options. Review the applicable process limits and pricing details before choosing a plan.
Plans and prices
From Keymetrics's own pricing page, checked 11 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Runtime | Free | Process manager · zero downtime reloads · terminal monitoring · real-time web interface · Open source |
| Plus | $79 a month | Web monitoring · issue tracking · custom metrics · email/Slack notifications · server health checks · process limits apply · Starts at $79/ Month |
| Enterprise | Priced on request | Advanced profiling · transaction tracing · up to 1 year data retention · shared cloud or on-premise install · Go and Python integration · Contact us for more details |
The facts
Each one read from Keymetrics's own pages, with the date it was checked.
What it does
- Custom metrics
- The @pm2/io library lets Node.js applications expose custom metrics, including values, counters, meters, and histograms.checked 11 Oct 2026
- Deployment options
- PM2 Enterprise is offered as an installable on-premise system or as dedicated or managed instances.checked 11 Oct 2026
- Enterprise audience
- PM2 Enterprise is described as a toolset for high-scale or critical Node.js services.checked 11 Oct 2026
- Enterprise features
- Enterprise adds customizable dashboards, threshold-based alerts, stored logs, and CPU and memory profiling that can be launched in production.checked 11 Oct 2026
- Integrations
- PM2 Plus notifications can be sent by email, Slack, or webhook.checked 11 Oct 2026
- Issue debugging
- The issue dashboard can show when an error occurred, affected servers, its stack trace, the code line, and logs from before the error.checked 11 Oct 2026
- Production monitoring
- PM2 Plus provides a real-time monitoring web interface, issue and exception tracking, deployment reporting, real-time logs, email and Slack notifications, custom metrics, and custom actions.checked 11 Oct 2026
- Product purpose
- Keymetrics develops a Node.js monitoring tool for server infrastructure using the open source PM2 process manager.checked 11 Oct 2026
- Security and privacy
- The privacy policy says Keymetrics implements measures to protect personal data and describes SSL encryption and PCI-DSS requirements for payment card information.checked 11 Oct 2026
- Support
- The maker provides a contact form for sales and general inquiries and lists separate support and technical contact addresses in its terms.checked 11 Oct 2026
Money
- Plan limits
- PM2 Plus pricing counts monitored processes across linked servers, and processes above the plan limit are automatically ignored.checked 11 Oct 2026
- Trial
- The pricing page says a trial is possible by contacting the sales team; it does not state the trial duration.checked 11 Oct 2026
Where it runs
- Server and app views
- PM2 Plus shows apps and databases together in real time or through history, and provides an aggregated view across applications.checked 11 Oct 2026
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