So the server you are using is Make. Also marketplace is not old - that is one out of two official ways to use the V2 API. Also VAPI is GHL - if you understood API's (or are a DEV) you would understand what to do already. They don't need to create any docs because they would be just leading you back to GHL docs, so I don't think you understand what you are saying. Did you read this channel from the top?