Anomaly spotter
Last updated 2026-06-21
Definition
The anomaly spotter is a free Quri tool that takes a series of numbers you paste in and flags which values look statistically unusual against the rest. It runs the same sigma-based anomaly logic Quri uses on your live connected metrics — the difference is this works on numbers you type rather than your real data stream.
How to do this in Quri
- Open /tools/anomaly-spotter — no account or sign-in needed.
- Paste a comma-separated series of values for any metric you want to inspect.
- Read which data points the spotter flags as anomalies and at what sigma level.
- Connect your analytics in Quri to have anomalies spotted and alerted on your live metrics automatically.
Frequently asked
- Does this use my real account data?
- No — the spotter works on numbers you paste. For continuous anomaly detection on live connected metrics with proactive alerts, sign up and connect your data sources in Quri.
- How does the spotter decide what is anomalous?
- It uses standard-deviation scoring (sigma) — the same method Quri applies to your live metrics. A point more than two sigma from the mean is flagged as unusual.