Free for all REALTOR® Associations

MLS Compliance Tools,
Built for Associations

Free, instant RESO compliance checking for MLS operators, association IT staff, and PropTech vendors. No software to install.

500+

US MLSs must comply

4 Tools

Live & free

Free

All tools, always

PDF

Downloadable reports

All Tools

What do you need to check?

RESO Compliance Checker

Test your Web API endpoint against DD 2.0 standards. Instant compliance score + downloadable PDF report.

Data Quality Scorecard

Analyze field population rates, lookup consistency, and detect stale listings, duplicates, and price anomalies.

RESO Field Mapper

Upload your MLS field export and instantly map every field to RESO DD 1.7, 2.0, or 2.1. Download Excel + PDF reports.

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Coming Soon

RETS → Web API Tracker

Manage your data consumer migration from legacy RETS to RESO Web API with board-ready status reports.

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Coming Soon

Security & Auth Validator

Verify OAuth 2.0 and OpenID Connect on your RESO endpoint. Detect misconfigurations before auditors do.

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Field Dictionary Explorer

Browse all 217 RESO DD 2.0 fields with definitions, data types, and full enumeration values. Search, filter, copy, export CSV.

How It Works

Three steps to compliance clarity

01

🖱️

Choose a tool

Select from our free suite of RESO compliance tools. No account or software needed.

02

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Enter your endpoint

Provide your RESO Web API URL and OAuth credentials. We run automated checks against the latest standards.

03

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Get your report

See your compliance score instantly on screen and download a full PDF report — no email required.

04

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Need hands-on help?

If your score shows gaps, our RESO-certified specialist can assist with remediation and certification prep.

Why It Matters

RESO compliance isn't optional

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NAR Mandate

All NAR-affiliated MLSs must adopt RESO Data Dictionary 2.0 within one year of ratification. Non-compliant associations face public listing on RESO's non-compliance board.

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Vendor Integration Speed

Before RESO standards, a single MLS feed integration took 25+ hours. With Web API, it takes 2–16 hours. Bad data costs your vendors time and your members money.

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Data Security

Proper OAuth 2.0 implementation protects member PII. A misconfigured endpoint exposes your MLS to unauthorized access and potential liability.

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Member Value

Clean, standardized data means better IDX websites, better CRMs, and better tools for your REALTOR® members. Data quality is your MLS's core asset.