---
title: Usage data
---

# Usage data and product metrics

Redocly CLI sends a small set of anonymized data to help us understand how the tool is used and improve it.

## What data is collected

When a command is run, the following data is collected:
 * the command being run
 * command exit code
 * values from `REDOCLY_ENVIRONMENT`
 * CLI version
 * Node.js and NPM versions

Values such as file names, organization IDs, and URLs are removed, replaced by just "URL" or "file", etc.

## Opt out of data collection

To opt out, set the `REDOCLY_TELEMETRY` environment variable to `off`, or set `telemetry: off` in the `redocly.yaml` configuration file.