xChainer allows you to share your account with other users of the system. To do this, in the account settings, go to the SHARED ACCESS tab, click "Add user" and specify the user's email, as well as the type of rights that you grant to this user.
After clicking the Save button, the user will see this account in his service. The user will not see the API keys of the provided account, but only the name of the exchange and the email address of the account holder. It will also be available information about balances and history, depending on the selected set of rights. You can view the provided account in xChainer as well as its owner.
In order to cancel another user's access to the account, in the same Access tab, click the cross next to the corresponding user.