AxiosMastodonConsole.user.js

// ==UserScript==
// @name         AxiosInMastodonConsole
// @namespace    https://rinsuki.net
// @version      0.1
// @description  try to take over the world!
// @author       You
// @match        https://mstdn.maud.io/web/*
// @match        https://imastodon.net/web/*
// @match        https://tuner.1242.com/web/*
// @grant        none
// @require      https://cdnjs.cloudflare.com/ajax/libs/axios/0.18.0/axios.min.js
// ==/UserScript==

(function() {
    'use strict';

    // Your code here...
    const state = JSON.parse(document.getElementById("initial-state").innerText)
    window.requestor = axios.create({headers: {Authorization: "Bearer "+state.meta.access_token}})
})();