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

# How to authenticate with a User Access Token (Zapier OAuth)

> Register an OAuth app with Zapier and connect it to Nango

This guide shows you how to obtain your OAuth credentials (Client ID and Client Secret) from Zapier so your users can grant your app access via the Workflow API.

## Prerequisites

You must have created an app and published it as a **public integration** in [Zapier's App Directory](https://docs.zapier.com/platform/publish/public-integration#benefits-to-building-a-public-integration). Redirect URIs and your Client ID and Client Secret become available only after your app is public.

## Creating your Zapier OAuth app

<Steps>
  <Step title="Configure a redirect URI">
    In the [Zapier Developer Platform](https://developer.zapier.com/), go to **Embed → Settings → Redirect URIs** and add your Nango callback URL:

    **`https://api.nango.dev/oauth/callback`**
  </Step>

  <Step title="Get your Client ID and Client Secret">
    In the Zapier Developer Platform, go to **Embed → Settings → Credentials**. Copy your **Client ID** and **Client Secret**.
  </Step>

  <Step title="Determine required OAuth scopes">
    The Zapier Workflow API endpoints require different OAuth scopes. Check the [API reference](https://docs.zapier.com/powered-by-zapier/api-reference) for each endpoint you use to see which scopes are required, and configure those scopes when setting up the integration in Nango.
  </Step>

  <Step title="Next">
    Follow the [*Quickstart*](/getting-started/quickstart) to connect your first account.
  </Step>
</Steps>

## Additional resources

* [Zapier Workflow API – Authentication](https://docs.zapier.com/powered-by-zapier/authentication/getting-started)
* [Zapier User Access Token documentation](https://docs.zapier.com/powered-by-zapier/authentication/methods/user-access-token)
* [Building a public integration on Zapier](https://docs.zapier.com/platform/publish/public-integration)

***