Health Score

The Health Score is a single 0–100 number that summarizes the overall health of your API at a glance. It is computed continuously and displayed prominently at the top of the dashboard.

Calculation

The score combines four weighted dimensions:

Dimension	Weight	What is measured
Availability	30%	Ratio of 2xx responses over the last 24 hours
Performance	30%	P90 latency compared to the 30-day historical baseline
Stability	25%	Absence of anomalies and error spikes over the last 7 days
Quality	15%	Proportion of endpoints that are active and not degraded

Availability (30%)

score = (2xx_requests / total_requests) × 100

A 99% success rate gives a full 30 points. Below 95% the score drops sharply.

Performance (30%)

Compares current P90 latency against the 30-day baseline:

• P90 at or below baseline → full 30 points
• P90 10–30% above baseline → partial score
• P90 more than 50% above baseline → 0 points on this dimension

Stability (25%)

Counts anomaly events in the last 7 days (Z-score P99 spikes, sudden error rate increases). Each unresolved anomaly reduces the stability score.

Quality (15%)

score = (active_endpoints / total_endpoints) × 100

An endpoint is considered "active and healthy" if it has received traffic in the last 21 days and has no open PERF insight.

Reading the score

Score	Status	Meaning
85 – 100	🟢 Healthy	All systems nominal
65 – 84	🟡 Warning	One or more dimensions need attention
40 – 64	🟠 Degraded	Performance or availability issues detected
0 – 39	🔴 Critical	Significant problems requiring immediate action