Connecting to ActivePieces from BitFlows

I have a WordPress website with an integration/automation plugin called BitFlows, and an LTD plan for ActivePieces which I have yet to make good use of.

It offers a connection to ActivePieces, but I don’t know which option I can use of the below.

It appears that API access is locked behind a higher level plan, so I’d like to know which of the displayed options I can use to connect my WordPress site to ActivePieces using my BitFlows automation tool, and where I can find the settings I need in my account.

Thanks.