WMS as a on-line layer (not as a downloaded)

You can try using Python, it’s not my area of expertise, but I found this sample using owslib

https://owslib.readthedocs.io/en/latest/notebooks/wms.html

import traceback
from pyrx_impx import Ap, Db, Ed, Ge, Gi, Gs, Rx, Ax
from owslib.wms import WebMapService


def PyRxCmd_doit():
    try:
        
        svs = "https://ows.terrestris.de/osm/service"
        wms = WebMapService(svs, version="1.3.0")
        print(list(wms.contents))
       
    except Exception as err:
        traceback.print_exception(err)

GitHub - CEXT-Dan/PyRx: Python for AutoCAD