Mootools-docs-node is a project mainly written in JavaScript, it's free.
A MooTools Documentation viewer in Node.js
With this runner you can view documentation for MooTools or projects who wrote their documentation in a similar way. It is written in Node.js.
To run the application you can run
$ node app.js
now when you visit http://localhost:3000
you can view the result.
All these dependencies can be installed with npm using the npm install
command