RETS servers handle 3 main purposes:
RETS M.D. tries to handle, simplify and summarize #1 while also providing small glimpses into #2 and #3. Since the information learned from #1 is often a one-time need, using a pre-built metadata viewing tool is often a much better option compared to writing a custom application which will show you much of the same information.
Using the information filled into the login page on RETSMD.com, the site will begin communicating with the given RETS server so it can learn about what it has to offer. Several things are discovered during this time, including:
This service is created to provide you with as much information as is typically needed while trying to hide as many of the often-unused details in the background.
All of the information and features this site contains are made possible by using PHRETS as the underlying RETS library allowing it to communicate with compliant RETS servers.