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

# Authentication

## Obtaining an API Token

All of our API calls require authentication. The V2025 API uses **Personal Access Tokens** for authentication. These tokens provide secure, token-based access to your Formstack account.

For detailed information on creating and managing Personal Access Tokens, please visit: <Anchor label="Formstack Personal Access Tokens" target="_blank" href="https://help.formstack.com/s/article/Formstack-Personal-Access-Tokens">Formstack Personal Access Tokens</Anchor>

Personal Access Tokens are tied to a Formstack user and follow Formstack (in-app) user permissions.