Collaboration and disciplinary diversity are hot topics in the science policy and research communities. At Science-Metrix, we've been working on multi-/inter-/trans-disciplinarity issues for a while now, and we figured that some of you might find it useful to have a tool you can use to take a quick measurement of the multidisciplinarity of your team. As part of our 15th anniversary celebrations, we've created a free widget that we’re sharing for just such a purpose. Any team can be measured—your research team in academia, a product team in your company, or even your Wednesday-night hockey team. In this post, we’ll explain what the disciplinarity widget does, how to interpret the measurements, and how you can use it yourself. We hope you enjoy the widget—a little birthday gift from us to you!