About upzero
Built by engineers who got paged at 3am.
upzero exists because standard uptime tools lie to you. They check from one region every 60 seconds and call it monitoring. We check from 5 regions every 30 seconds.
Why we built upzero
Your monitoring said green. Your users said down.
We ran infrastructure for teams that got blindsided by regional outages their existing tools never caught. A single-region check from Virginia tells you nothing about users in Frankfurt or Singapore.
Alertmanager thresholds set to 2 missed checks meant 4 minutes of downtime before a page fired. By then, the support queue was already full.
We built upzero to close those gaps. 30-second check intervals. 5 probe regions. Median alert time under 30 seconds. No configuration required to get that speed. It is the default.
The same gap shows up again once a team's stack includes a model API, a vector database, or an agent pipeline; those fail in ways a status-code check was never built to see, and most monitoring tools treat them as a bolt-on if they cover them at all. We didn't see a reason to split infrastructure and AI into separate products or separate tiers of attention. Both are things a team depends on that can fail at 3am, so upzero treats them the same way: as first-class monitored endpoints, not a legacy pillar and an afterthought.
See what we built on the platform page or join the waitlist to get early access.
Our approach
Four principles we won't trade away
Precision over approximation
We report p50, p95, and p99 latencies with sub-10ms accuracy. No rounded numbers. No smoothed graphs. Your incidents deserve exact timestamps.
No black boxes
Every alert calculation is documented. Every SLO formula is in the open. You own your data and can export it any time.
We monitor monitoring
The check runner itself runs in 5 independent regions. If one region fails, the others keep running. Your alerting pipeline has no single point of failure.
API-first, always
Every monitor, alert, and status page is configurable via API. Terraform provider available. Bring your own CI pipeline.
By the numbers
What we run today
The team
Small team. Long incident history.
We are a small engineering team. Between us we have managed infrastructure for fintech, healthtech, and SaaS companies that could not afford downtime.
We have written postmortems for incidents that our monitoring missed. That experience drives every product decision at upzero.
Open positions
Want to fix monitoring?
We are hiring engineers who have been paged for incidents that better tooling would have prevented. If you have strong opinions about observability and want to build the tool you wish existed, reach out.
Senior Backend Engineer
Full-time · Remote
Infrastructure / SRE
Full-time · Remote
Developer Advocate
Full-time · Remote
Don't see a fit? Send a cold email anyway. We read them.
Get early access to upzero.
Join the waitlist and we'll show you what we've built.