How do you query disk usage, swap, memory metrics from API?

[knsoren]

I would like to use the API to programmatically query my instances for relevant performance data (more than just the CPU data). Would I need to write my own custom backend API endpoint to do this?

[dwhitfield]

Can you define instances here? Are you talking about multiple XI installs or the hosts XI is monitoring?

Either way, the current API documentation is under the help menu in XI.

There is also the old API: https://assets.nagios.com/downloads/nag ... nd_API.pdf