I want to create a web service like getmoretracks.com tracktaco.com or ecomhutsy.com in these websites they find valid FedEx trackings by zip code, city, or state and also filter results by shipping status in-transit or delivered and shipping and delivery date ranges so I created FedEx developer account and API keys but not found any API like the given criteria can someone help me to reach how getmoretracks.com tracktaco.com or ecomhutsy.com these websites works or find trackings so I can also build software where I can search for trackings by date ranges and zip codes.
Thanks in advance.