---
title: System information endpoints
description: InfluxDB 3 Clustered provides system endpoints for checking instance availability and retrieving version information. Endpoint Method Description /ping GET, HEAD Returns 204 if the querier is available. Response headers include X-Influxdb-Version and X-Influxdb-Build. Does not require authentication. Checks querier health only; does not check ingesters. To verify ingester availability before writing data, send a request to one of the write endpoints.
url: https://docs.influxdata.com/influxdb3/clustered/api/data-api/system-information-endpoints/
estimated_tokens: 354
product: InfluxDB Clustered
version: clustered
---

[Download Clustered Data API Spec](/openapi/influxdb-clustered-data-api.yml)

InfluxDB 3 Clustered provides system endpoints for checking instance availability and retrieving version information.

| Endpoint | Method | Description |
| --- | --- | --- |
| /ping | GET, HEAD | Returns 204 if the querier is available. Response headers include X-Influxdb-Version and X-Influxdb-Build. Does not require authentication. Checks querier health only; does not check ingesters. |

To verify ingester availability before writing data, send a request to one of the write endpoints.