A userscript that adds a "Copy token" button for copying your minecraft.net auth token for usage in external applications (ex: name sniper)

token.user.js

// ==UserScript==
// @name        MC TOKEN GRABBER
// @namespace   https://creatable.cafe
// @match       https://www.minecraft.net/en-us/profile
// @grant       none
// @version     1.0
// @require     https://gist.github.com/raw/2625891/waitForKeyElements.js
// @author      creatable
// @description Adds a button for grabbing your token.
// ==/UserScript==

waitForKeyElements (`div[data-testid="pii-disclaimer"]`, addCopyButton);

function addCopyButton() {
  const button = document.createElement('button')
  button.style = 'margin-top: 16px;'
  button.className = 'btn btn-primary'
  button.onclick = (e) => {
    navigator.clipboard.writeText(
      document.cookie
        .split(';')
        .find((i) => i.includes('bearer_token='))
        .split('=')[1]
    )
    alert('Successfully copied token!')
  }
  button.innerText = 'Copy token'
  document.querySelector(`div[data-testid="pii-disclaimer"]`).append(button)
}