The simplest way to obtain the token currently is to operate in the console as follows:
On the xsetting page, right-click to select Inspect, or enable Developer Mode, or press F12, preferably using Chrome. A module will pop up, select Console, copy the code below into the console, and press Enter; it will return a long string of text.
JSON.parse(localStorage.getItem('connect-kit:account')).state.wallet.siwe.token
The purpose of this code is to retrieve the siwe token information; there should be other methods to obtain it, but this is currently the simplest method.
The content returned by entering this code is the required token information; please save it properly (note that there are no single quotes at both ends, just the content).
Please copy the long string of content returned by the console; this is called the authentication token.