Internet Data Exchange (IDX)

Internet Data Exchange (IDX)

IDX policy gives MLS participants the ability to authorize limited electronic display of their listings by other participants. MLSs are required to promptly provide basic downloading of certain listing information. Use the links on this page for more information.

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The IDX policy gives MLS participants the ability to authorize limited electronic display of their listings by other participants.

Read about updates to the NAR IDX policy that occurred during the previous calendar year.

The NAR Board of Directors in May voted to update the NAR Lockbox Security Requirements to reflect current practices and technology including the use of temporary access codes, opening lockboxes with mobile devices, security protocols to protect against cyberattacks, and consideration of criminal history when issuing keys.

Read questions and answers concerning the Qualification for MLS Participation and IDX.

The following are model rules for Internet Data Exchange (IDX) enforced by local multiple listing services. The rules are based upon the approved NAR IDX policy.