> ## Documentation Index
> Fetch the complete documentation index at: https://docs.zapier.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Zapier environment variables: OAuth credential management tutorial

> Video tutorial on using Zapier environment variables to store OAuth credentials outside source control and toggle between staging and production environments.

<video controls src="https://cdn.zappy.app/cb768909f391c96e8814d77c2eece503.mp4" />