A simple python program to find available short account names in Minecraft

getNewName.py

import random
import requests
import time

# Mojang Auth
USERNAME = ""
PASSWORD = ""

chars = [chr(x) for x in range(ord('a'), ord('z') + 1)]
usedNames = []

def genName(len):
    working = ''
    for _ in range(len):
        working += random.choice(chars)
    return working

def newName(len, usedNames):
    name = genName(len)
    if name in usedNames:
        return newName(len, usedNames)
    return name

def checkName(name, token):
    r = requests.get(f'https://api.minecraftservices.com/minecraft/profile/name/{name}/available', headers={"Authorization": f"Bearer {token}"})
    if r.status_code == 200:
        return r.json()
    time.sleep(5)
    return checkName(name, token)

def main():
    auth = requests.post('https://authserver.mojang.com/authenticate', json={"agent": { "name": "Minecraft", "version": 1 }, "username": USERNAME, "password": PASSWORD, "clientToken": "a73661b0c690b66d4bc3ea90d21bef9b", "requestUser": True})
    token = auth.json()['accessToken']

    for _ in range(50):
        name = newName(4, usedNames)
        usedNames.append(name)
        print(f'[*] Trying: {name}')
        r = checkName(name, token)
        if 'status' in r and r['status'] == 'AVAILABLE':
            print(f'[+] Found:  {name}')

if __name__ == '__main__':
    main()