# Redundant Status API — Spectra Analyze

> Check whether a Spectra Analyze instance is the primary node in a redundant cluster using the cluster_primary endpoint.

```
GET /cluster_primary
```

In redundant (cluster) deployments, the primary node will respond with **200** at this address. If the queried appliance is not the primary node for whatever reason (instance is down, instance serves as the secondary node), it will respond with **404**.
