Google Auth TOTP code generator, just seed it with your MFA secret key and it'll generate codes exactly as Google Auth does.

google_auth.py

def get_totp_token(secret, refresh_time=int(time.time())//30):
    secret = secret.strip().replace(' ', '')
    secret = secret.ljust((len(secret) + 7) & (-8) ,'=')
    key = base64.b32decode(secret, True)
    msg = struct.pack(">Q", refresh_time)
    h = bytearray(hmac.new(key, msg, hashlib.sha1).digest())
    o = h[19] & 15
    h = str((struct.unpack(">I", h[o:o+4])[0] & 0x7fffffff) % 1000000)
    return h.zfill(6)