We don’t have an API available currently, unfortunately.
For any online “fan”-created tools, while we can’t “officially” endorse these, we are perfectly happy with their existence so long as they go along with our Terms of Service / Code of Conduct / Content Usage Policy.
API has been discussed in the past, we aren’t hard locked into “no forever” but it’s not something we’re currently working on either.
There is a Creator Program kit that’s accessible to folks in that program (Creator Program | Lost Ark - Free to Play MMO Action RPG) but it doesn’t have all of the detailed pieces you’re looking for. Might be something we can look into further down the road!
devtrackers.gg