API path not working ? Createapplication gets me error 405

Haven't tested this myself but the wiki has below as an example:

https://localhost:17778/SolarWinds/InformationService/v3/Json/Invoke/Metadata.Entity/GetAliases HTTP/1.1

With your path I guess that would be something like this:

https://localhost:17778/SolarWinds/InformationService/v3/Json/Invoke/Orion.APM.Application/CreateApplication HTTP/1.1

See also: github.com/.../REST

Ghaaa, why does thwack shorten my links....

....

Finally, all the link text....

That should be the right endpoint, I use the powershell version from the SDK's module, and its a little picky but it works. 

Hello, I still have the same issue with createApplication what is weird is that Invoke/Orion.APM.Application/Unmanage works fine for me.

What do you mean by "picky"

You mention that unmanage works, but not creation. I have this feeling that solarwinds permissions are involved. 

Turns out it was just a hidden character in the request when i copy past the url from the swagger....
still getting tricked.

Glad it was something simple! And there is a special place for copy and paste errors. I think it is to the left of the screaming room.