> ## Documentation Index
> Fetch the complete documentation index at: https://mixpanel-edb78807-fix-callout.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Authentication

## Service Account

[Service Account Authentication Details](/reference/service-accounts)

Note that when you use Service Account authentication, you must specify the project\_id as a query parameter. E.g. `https://data.mixpanel.com/api/2.0/export?project_id=12345`

**Projects with [Classified Data](/docs/admin/data-governance/data-views-data-classification#data-classification)**

* The Service Account must have permission to access classified data.

## Project Secret

[Project Secret Authentication Details](/reference/project-secret)