Reliability without
the noise.

Warden is an open-source, self-hosted uptime monitor for websites, APIs and services. It confirms real failures, learns normal response time and explains what changed.

Managed hosting: $49/month, with updates and backups. See what is included.

Start managed Warden Self-host it free
normal for this service one slow check no alert still slow incident opened

Alert only when it matters.

Confirm outages and recoveries before alerting, so one failed check does not become a false alarm.

first failure wait still failing confirmed incident opened alert

Every service has its own normal.

Learn each service's normal response time, then catch slowdowns a global threshold misses.

same response time API normal range normal checkout normal range slow for this service

History should explain the present.

See recurring slowdowns, time-of-day failures and services that break together.

See why Warden is different →
failed together web api checkout one related failure window

Ask Warden directly.

Ask your AI assistant what is down, why a check failed and what changed. Warden provides live context through a permission-scoped MCP connection.

See how AI control works

“Why did checkout fail overnight?”

Warden answer

Checkout and API failed together after response time left its normal range.

Evidence incident · failed checks · latency history

Viewer can inspect and run a check. It cannot delete or administer.

Self-host free.
Or let us run it.

Run it yourself, or get one managed Warden instance with hosting, updates and backups.

Managed Warden

$49/month · no setup fee

Your instance will be ready within one business day after successful payment.

What is included and who it fits
Start for $49/month

Community

AGPL-3.0 · unlimited · your infrastructure

Self-host free

Uptime first. Full observability is the direction.

Warden starts with knowing whether a service is available and responding normally. The roadmap expands into service metrics, then logs and traces, so teams can investigate service health in one product.

  1. Available today

    Uptime and response time

    Endpoint checks, adaptive latency, confirmed incidents, notifications, status pages and role-scoped MCP operations.

  2. Planned next

    Service metrics

    Expand from external checks to measurements from the services themselves.

  3. Planned

    Logs

    Add application log collection and investigation alongside service health.

  4. Planned

    Distributed traces

    Follow requests across services to investigate where time is spent.

Metrics ingestion, log storage/search and distributed tracing are not available in Warden today. There are no committed release dates or announced prices for these planned capabilities. Choose the current managed plan for its uptime features.

Explore the foundations: metrics, logs and traces.