RESO certifies systems to ensure they comply with real estate data standards. A RESO certification is a badge of honor for a system which technology developers and brokerages can rely upon to be interoperable with other tools. 

The goal of certification is to bring a technology experience to real estate that consumers and professionals expect. Consumers demand a smartphone experience where apps, servers, and any other systems can talk to one another and operate seamlessly together. Standards provide that common language.

RESO Certification Quick Facts:

  • RESO is currently certifying on Web API 1.0.2 and Data Dictionary 1.6.
  • RESO classifies certifications on the two most recent versions of a standard as “Active”.
  • The National Association of REALTORS® requires REALTOR® operated MLSs to be in compliance with new RESO standards within 12 months of RESO ratification. 
  • Certification isn’t just for MLSs. Brokers and technology vendors with Web API servers are also certifying with RESO.

If your company is interested in certification, please read this entire page before applying.

The Certification Process

  1. Application and verification: Organizations seeking certification apply through the RESO website. RESO reviews the application for current membership status, a current signed Trademark Agreement and a signed Declaration (available here).
  2. Compliance testing: RESO uses access credentials supplied by the applicant and/or applicant’s technology vendor and runs the appropriate tests for the system.
  3. Certification or troubleshooting: Applicants whose systems pass testing are provided with certificates from RESO. Systems which do not initially pass testing are guided through troubleshooting by RESO staff. Systems are retested for certification.

Log into your member account to apply for certification:


Certification Information by Organization Type

Important Links

DLU February 13th, 2020