Real Estate Transaction Specification (RETS)

RETS is a framework that can be adopted by computer systems to receive data from the Multiple Listing Service (MLS) servers, as well as those of other real estate systems provided they also have software installed designed to communicate using the RETS framework. The National Association of Realtors refers to RETS as a "common language".

RETS allows any web designer to access local property search data & specs for using during your real estate web design with IDX.



Acronym which stands for Real Estate Transaction Standard is RETS.

First launched in 1999 by NAR and other real estate groups, it is used in the Canada & the United States by the real estate industry to facilitate the exchange of data.

RETS which was originally created to overcome the difficulties presented by the existence of a large number of organizations desiring to share and distribute real estate information with others. Prior to RETS, much of the data exchange was done using the FTP protocol, which did not allow for queries, and required transfer of complete datasets. The inefficiencies of this approach meant that to generate a query such as "new listings since yesterday", the entire dataset had to be downloaded again and compared with a local copy. Rather than basing a solution on alternatives used by other industries to allow for such queries, RETS was created from the ground up as a new framework to attempt to address the need for a common and efficient standard for the exchange of real estate data. Most North American MLS data exchange service providers use the RETS protocol. Although the implementation of the protocol has offered some standardization, the field names of the underlying datasets still vary widely between markets.

Additional Information on RETS

Real Estate Standards Organization
An environment for the development and implementation of data standards and processes that facilitate innovation, insure portability, eliminate redundancies and obtain maximum efficiencies for all parties participating in the real estate transaction.

Center for REALTOR® Technology
(National Association of REALTORS®)—The Center for REALTOR® Technology (CRT) serves REALTORS® and REALTOR® associations as an industry advocate, implementation consultant and technology information resource.

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