RESTful call to check if Zyphr Scale is installed in a Jira instance

[apicax]

What is the best way to check if ZS (Server or Cloud) is installed on Jira?

I could make a simple request like "/testcase/search" and check for results.  Is there a better way?  The Cloud API "/healthcheck" endpoint could be run but it doesn't check against a specific Jira instance.  Is there a Jira endpoint that can be used?

[MisterB]

I would check under the Jira Apps menu.  If it's not on the list of Apps it's not installed - that's my assumption.