There's no official API for HP / Lenovo like Dell's. This leverages a proxied service api.warrantywatcher.com to query HP / Lenovo serial numbers
For now, you can use the following key to access the service:
bza98Nyy7PHVNjDwZKeTRqapvu8EViStXNrQUch-M6I expires 2026-06-01. I will figure out a better way to proxy the queries before then.
Set it under on the configure page.