Besides the first one, these libraries are definitely outdated and deprecated, however I'll leave this "graveyard of libraries" here for reference -
you never know :)
Maybe they are of use if you want to build something new.
PHP
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I once wrote that one for demonstration purposes. Can serve you as a ramp-up.
Go to Repo
PHP
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Library for the Laravel-Framework.
Go to Repo
PHP
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Plugin for Nette-Framework.
Go to Repo
Python
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CLI-Interface. Pretty much feedback available, seems to work flawlessly.
Go to Repo
Go
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Library written in Golang. In active development
Go to Repo
Angular JS
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Library for AngularJS.
Go to Repo
Ruby
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Plain Ruby library with CLI functionality. Did not set it up or try it out. You did? Give me feedback!
Go to Repo
Perl 6
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CLI-Interface. Did not set it up / test. You did? Give me feedback!
Go to Repo