Setting up Pivotal Tracker for your projects:

Log into Pivotal Tracker and view the PT project you want to link to a Teambox project.

Highlight project and click on Configure Integrations.

Scroll down to the Activity Web Hook section.

In the Web Hook URL enter your Teambox URL (https://teambox.com/ if you use hosted) followed by projects and your project name. This is the same URL you would see if you viewed your project in Teambox.

At the end of this URL append /hooks/pivotal_v3. For example, if your project is Earthworks enter https://teambox.com/projects/earthworks/hooks/pivotal_v3.

Now you should receive your Pivotal Tracker updates in Teambox.