If you want users to login to your WordPress site using their TeamSnap credentials, you can simply do it using our WP OAuth Single Sign On (OAuth Client) plugin. Once you configure the TeamSnap with WordPress plugin, you can allow users to SSO to your WordPress site using TeamSnap. Similarly, you can map your WordPress roles based on your TeamSnap attributes/groups. To know more about other features we provide in WP OAuth Client plugin, you can click here.
If you are facing any difficulty please mail us on email@example.com.