Enable your site or app with the gamerID OAuth API.
The gamerID OAuth API allows any website or web-enabled application to allow remote authentication based on gamerID account credentials. There are many benefits to licensing the free gamerID API, including universal login for multiple websites, non-private account data (subject to account holder preferences), and more.
If you're a developer who would like to enable gamerID login with your website or web-enabled application, please fill out our contact form and describe your site or application in as much detail as possible. One of our developer relations specialists will follow up with you soon.