Vendor Support Center

Welcome to the support page for real estate organizations through ICE's Paragon platform.


RESO has deprecated the RETS standard and removed the specifications from their site. Many vendors and organizations continue to use RETS. This is why we continue to provide our RETS Best Practice Guide. To obtain the 1.8 specification, please E-mail us.


Please ensure the use of HTTPS with basic authentication. TLS 1.2 must be used.

We recommend accessing Property image URL's through the Media resource instead of using GETOBJECT. Documents and Agent or Office images currently require the use of GETOBJECT. Please ensure Location=1 instead of 0.


We offer two RESO Data Dictionary compliant Web API products:

  • OpenMLS
  • Property Information Central (PIC)

Even though both products follow RESO's standards they have separate URL's, and slightly different functionality. Please check the URL when referencing the guides.

Additional Support

Should you require further support after reviewing the documentation, we can be contacted through e-mail. When you reach out, please include the following where applicable:

  • Summary of Issue
  • Full URL with Query or Login
  • RETS Login Name or First Five Digits of API ClientId
  • API Token - First five digits
  • Steps to Reproduce
  • Errors
  • Screenshots or Snippets of Data Export

Our staff will do our best to respond in a timely manner.