This is Perl module Acme::JWT. INSTALLATION Acme::JWT installation is straightforward. If your CPAN shell is set up, you should just be able to do % cpan Acme::JWT Download it, unpack it, then build it as per the usual: % perl Makefile.PL % make && make test Then install it: % make install DOCUMENTATION Acme::JWT documentation is available as in POD. So you can do: % perldoc Acme::JWT to read the documentation online with your favorite pager. JWT specification http://self-issued.info/docs/draft-jones-json-web-token.html NAGAYA Shinichiro