Hi All,
Just a quick post. Mint changed something and you can no longer get the required authentication headers by using the "oath2" request. You must now search for and copy all of the headers from the track.xevent request. (Also, fyi, I only see the track.xevent header when I view the "Overview" page on mint.com.)
I have updated the Mint Authentication Steps page with this new information (but I still need to updated the screenshot).
-b3