Found PetitJson:

http://source.lukas-renggli.ch/petit.html


On Tue, Oct 16, 2012 at 11:57 AM, Dennis Schenk <d.schenk@students.unibe.ch> wrote:
Hi all,

I'd like to read and parse JSON from a URL or alternatively from files. Could anyone point me in the right direction to achieve this? Is a JSON Parser available in Pharo or is there a project which provides this functionality?

Cheers,
Dennis