Amazon Web Services enables you to centrally manage your Amazon Web Services Cloud WAN core network and your Transit Gateway network across Amazon Web Services accounts, Regions, and on-premises locations.
curl \ -H "Authorization: $API_KEY" \ http://networkmanager.us-east-1.amazonaws.com/peerings
curl \ -H "Authorization: $API_KEY" \ http://networkmanager.us-east-1.amazonaws.com/attachments
curl \ -H "Authorization: $API_KEY" \ http://networkmanager.us-east-1.amazonaws.com/connect-peers