How to call RSS modified kimono API on demand?

Question

As you can see in the help (goo.gl/JMlJgV) this is an ondemand call to obtain a JSON output:

http://kimonolabs.com/api/json/ondemand{API_ID}?apikey={YOUR_API_KEY} 

This is for XML:

http://kimonolabs.com/api/json/ondemand{API_ID}?apikey={YOUR_API_KEY}&kimp‌​ath2=chipotle-new-york 

What is for RSS on demand? And What is for a modified version?

Thank you