Travis CI is a free Continuous Integration service, available for OpenSource projects. It is widely used and have support for most of the languages and frameworks. Unfortunately there is no official support for Meteor.
So I started hacking on this added Travis CI support for Meteor Packages
Enabling Travis CI support for your Meteor Packages is pretty simple. Just add following file as
.travis.yml and it just work.
- "curl -L http://git.io/ejPSng | /bin/sh"
See more on Travis CI support for Meteor Packages