cl-protobufs
CL-PROTOBUFS is a Google Protocol Buffers library, originally written by Scott McKay at ITA.

Its rivals seem to be protobuf and s-protobuf. The library documentation is included in the sources in a ReST document cl-protobufs.rst. You can git clone git://common-lisp.net/projects/qitab/cl-protobufs.git (If you're a developer, use ssh://common-lisp.net/project/qitab/git/cl-protobufs.git). Or you can browse the git web interface at http://common-lisp.net/gitweb?p=projects/qitab/cl-protobufs.git

Project page: http://common-lisp.net/project/qitab/

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