As you may know, the #claws IRC channel is on the Furion network (http://www.furion.org/). Furion theoretically has a web interface, but it hasn't been working for ages.
A few days ago, Furion merged with Atrum (http://www.atrum.org). Atrum has a web interface that actually works (I have tested the CGI chat):
http://www.atrum.org/?module=chatnow
#claws is not in the list of channels in the drop-down menu, but that doesn't matter -- once you're in the chat app, you can quit whatever channel you've joined and join #claws (by typing /join #claws).
As always, reasonably up-to-date information about the state of the channel can be found at:
http://claws.za.net/TheTome/CLAWsOnIRC