I've finally managed to set up a script that will update the list of G'MIC filters for GIMP automatically. It will run each day at 00:00 am. Here is the URL of the updated file (file format is ASCII, with very simple formatting) :

http://gmic.sourceforge.net/gimp_filters.txt

Thank you very much Ronounours, that will be very handy to have.

This is a very insignificant error.
Error in ASC II generation?
As at 07.01.2013 - list = 452 filters (according to information = 453)

Edit:
ps.As at 14.01.2013 is OK (Shown in the menu = 465)
pss. The new filters Samj hard to keep up - keep it up - thank you very much !

It has stopped working - blank page.

The link isn't opening for me MareroQ...just goes to a blank page and spins

That's true. There have been a small regression with latest 1.5.4.0, the list does not update anymore.
I'll fix that as soon as possible.

Thank you David...I thought maybe it was just me that couldn't open the link.

Now this has been fixed.

What a cool list...fast work David. thanks

Well, there is still an issue, lot of filters are doubled in it. I will fix that also :p

EDIT : fixed !