If it’s JSON you want, here’s my blog’s RSS feed in JSON.

http://scripting.com/rss.json

I started generating the JSON version in 2011.

http://scripting.com/stories/2011/03/17/jsonifiedRss.html

It took a few minutes to write the JSON rendering code, that’s how close the two serialization formats are, so if you want JSON, you can have it.