Hello! One thing I discovered when I tried to encode a big s-exp with encode-json-to-string is that it doesn't support characters. This kind of makes sense, since JSON itself doesn't have a separate "character" type, and some of the big usrs of JSON (ECMAscript and Python) don't, either. A JSON decoder couldn't tell what's a length-1 string, and what's a character. OTOH, for my program, it would be really handy to *encode* characters directly. I decided to try writing a patch, after about 5 seconds came up with this: (defmethod encode-json ((c character) stream) (encode-json (string c) stream)) Since this is Lisp, it's both insanely easy, and it doesn't have to be part of cl-json for me to use it as if it was. :-) I guess it doesn't really benefit me for this to be part of cl-json, but if that's of any use to you, feel free to use/add it. cheers, - Ken