The API key & secret can be generated via the webui by creating a new user at System/Access/Users. Ensure "Generate a scrambled password to prevent local database logins for this user" is checked and then edit the effective privileges selecting only:
- Diagnostics: System Activity
- Status: Traffic Graph
Finally, create a new API key which will download an
apikey.txt file with your key and secret in it. Use the values as the username and password fields, respectively, in your homepage config.
["cpu", "memory", "wanUpload", "wanDownload"].