No I don’t have any app named: “sql”.
Its just that while going thru your docs, I saw that URL syntax with app_name and that worked.
I only have a service with ‘sql’. But it seems like this is the syntax, with a query string giving some result in browser.
http://ec2-*************-23.ap-southeast-1.compute.amazonaws.com/rest/api_docs?app_name=sql
Hope that answers your question.