Hi Mike,

Forgive me if I'm misunderstanding the question and please correct me if I'm wrong:

What you want to do is get the connection configuration that PowerServer is using for the configuration tables?
In PowerBuilder: you could create your own endpoint that returns the contents of the AppConfig.json file (where you placed the database configuration for these tables).

In C# (Inside PowerServer itself): You can read the AppConfig.json file yourself by doing:

var appConfig = new ConfigurationBuilder()
                .AddJsonFile(".\\AppConfig\\AppConfig.json")
                .Build();

var connectionString = appConfig.GetSection("ConnectionStrings")["AppConfig"];
// connectionString contains the connection string you input in that file
using var dataContext = new DefaultDataContext(connectionString);
var executor = dataContext.SqlExecutor;
var connection = executor.Select<dynamic>("{SQL Query to access the data you want}")
    .FirstOrDefault();
if (connection != null)
{
    // connection.<column names>;
}

in an place that gets executed when you configure JWT

Hope this helps.

Regards,
Francisco