An auth token is commonly used for Twitter swap services and other tools. Here’s how to obtain the auth token for your account if your swapper requests it.
1: Open a web browser on your computer and log into your Twitter account.
2: Right-click anywhere on the page and click on “inspect element”, or simply press the keys CTRL + SHIFT + I on your keyboard.
3: Click on “application”.
4: On the side bar you will see columns, in the column that says Storage click the arrow on Cookies then click https://twitter.com
5: Find the Name “auth_token” and copy that value.