Our legacy endpoint is being deprecated but is still active at this time. We encourage you to consider upgrading to our new endpoint and to reach out to your DPA for an API key. If you are an existing Domain API client, you can still continue to connect via our legacy endpoint - https://domains.markmonitor.com/domains/restapi/v2. Please note that this will require IP whitelisting in order to connect (in addition to your login credentials). If you need assistance with IP Whitelisting, please reach out to your DPA for support.