RETS Working Group Developer Resources

RETS Compliant Products, Servers and Consultants
Incorporated Standards

RETS is based on and incorporates a number of other standards. These standards documents should be consulted when implementing a RETS-compliant system.
  • Internet Standards
    RETS relies heavily on existing Internet standards. These are maintained by the Internet Engineering Task Force. Some key Internet standards in RETS include:
  • RFC 2616: Hypertext Transfer Protocol
  • RFC 1321: The MD5 Authentication Algorithm
  • RFC 2045: Multipurpose Internet Mail Extensions (MIME)
  • RFC 822: Standard for ARPA Internet Text Messages

  • Extensible Markup Language
    The Extensible Markup Language (XML) is a recommendation maintained by the World Wide Web Consortium (W3C). W3C's XML web site contans the XML language specification as well as a large collection of white papers and tutorials.

W3C's web site also contains open source code that may be used to implement parts of a RETS-compliant system. This includes code to exchange HTTP and to parse HTML. See the license information on the web site for W3C's terms of use for these libraries.