RETS Support

The MLS IDX API follows the Real Estate Transaction Standard (RETS) version 1.7.2 as closely as possible. However, there are a few important differences between this service and a fully certified RETS server:

  • Compact and Compact-Decoded Formats
    These formats are currently available only for Property searches. Compact responses use the RESO Data Dictionary, which as of Version 1.0 only provides a Property dictionary. Once Agent and Office dictionaries are finalized, support for these formats will be added.
  • Query Restrictions
    Ad-hoc querying of records is not supported. Any filtering of results must be configured by the feed owner before data is retrieved.
  • Select Limitations
    The Select function is only supported for Property queries in Compact or Compact-Decoded format.
  • Server Limits
    A strict limit is enforced on the number of details that can be returned in a single Search request. Any Search request exceeding this server maximum will be rejected.

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AgentDetails Payload

29 September 2025

Parent Cardinality Name Type Description Lookup AgentDetails 1 Name String The name of the Agent AgentDetails 1 ID Integer (Attribute) Unique ID assigned to the

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Agent Payload

29 September 2025

Parent Cardinality Name Type Description Lookup Agent 1 ID Integer (Attribute) Unique ID assigned to the Agent Agent 1 LastUpdated DateTime (Attribute) The date agent

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OfficeDetails Payload

29 September 2025

Parent Cardinality Name Type Description Lookup OfficeDetails 1 Name String The name of the Office OfficeDetails 1 ID Integer Unique ID assigned to the Office

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Office Payload

29 September 2025

Parent Cardinality Name Type Description Lookup Office 1 ID Integer Unique ID assigned to the office Office 1 Last Updated DateTime The date the office

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