Reloaded HA this morning and alarmdotcom is now broken (no changes made). From the core log:
2021-08-06 10:46:08 ERROR (MainThread) [homeassistant.setup] Setup failed for honeywell: No setup or config entry setup function defined. 2021-08-06 10:46:10 ERROR (MainThread) [pyalarmdotcomajax.pyalarmdotcomajax] Unable to extract system id from Alarm.com 2021-08-06 10:46:10 ERROR (MainThread) [homeassistant.components.alarm_control_panel] Error while setting up alarmdotcom platform for alarm_control_panel Traceback (most recent call last): File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 250, in _async_setup_platform await asyncio.shield(task) File "/config/custom_components/alarmdotcom/alarm_control_panel.py", line 96, in async_setup_platform await alarmdotcom.async_login() File "/config/custom_components/alarmdotcom/alarm_control_panel.py", line 156, in async_login await self._alarm.async_login() File "/usr/local/lib/python3.9/site-packages/pyalarmdotcomajax/pyalarmdotcomajax.py", line 206, in async_login return await self._async_get_system_info() File "/usr/local/lib/python3.9/site-packages/pyalarmdotcomajax/pyalarmdotcomajax.py", line 166, in _async_get_system_info self._systemid = json["data"][0]["id"] KeyError: 'data'
Opened issue on github as well.