An API key is required to view all the 'My' pages and for direct API calls to the tracking servers by third party applications. The key is associated with the email address used during node configuration. If a key was obtained from a node hoster, enter it in 'Use Existing Key'.
If your main key is missing, enter your email and the server will look up your key and send an email to confirm and save it.
Enter an existing API key. If someone else hosts your nodes ask your provider for a key.