Douglas Elliman

Douglas Elliman Inc. (NYSE: DOUG) is a residential real estate brokerage founded in 1911 and headquartered at 575 Madison Avenue, New York City. It is one of the largest brokerages in the New York metropolitan area and among the largest in the United States, with roughly 6,000 agents across New York, Florida, California, Texas, Colorado, Massachusetts, Connecticut, Nevada, New Jersey, Vermont, the Mid-Atlantic, and international outposts in France and Monaco. Its home market is the United States. In the value chain Douglas Elliman sits on the SELL side as a licensed brokerage and MLS participant — it consumes MLS listing data under IDX and broker agreements rather than originating a syndicated feed — and it extends into development marketing, property management, commercial brokerage, title and escrow (Douglas Elliman Title), relocation, and PropTech venture investment through New Valley Ventures. Its API posture is honest and thin: no developer portal, no published API documentation, no OpenAPI or OData $metadata contract, and no published access path of any kind. developer.elliman.com, developers.elliman.com, and docs.elliman.com all resolve to the marketing homepage via a wildcard catch-all rather than to a portal, and api.elliman.com exists as an IIS/ASP.NET host that returns HTTP 403 at its root with no documentation behind it. On RESO, Douglas Elliman Real Estate is listed as a Class D member (Brokers, Agents and Appraisers) on the RESO membership roster but does NOT appear in the RESO certified-organizations directory — it is a RESO member, not a RESO-certified data provider, and it publishes no Web API or Data Dictionary certification, no OData endpoint, and no UPI surface. The single public engineering artifact the company ships is a GitHub fork of a third-party .NET RETS client library, which is consumer-side evidence that Elliman pulls MLS data in rather than producer-side evidence that it exposes any.

Douglas Elliman is profiled on the APIs.io network. Tagged areas include Real Estate, United States, Brokerage, Property Listings, and MLS.

Douglas Elliman’s developer surface includes engineering blog and 20 more developer resources.

🌐 Visit website 📡 Source on GitHub
16.5/100 emerging ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs
Real EstateUnited StatesBrokerageProperty ListingsMLSIDXRESORentalsCommercial Real EstateProperty ManagementTitleEscrowPropTechLuxury Real EstateNew Development

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 16.5/100 · emerging
Contract Quality 0.0 / 25
Developer Ergonomics 0.4 / 20
Commercial Clarity 4.2 / 20
Operational Transparency 0.7 / 13
Governance 0.0 / 12
Discoverability 6.8 / 10
Agent readiness — 0/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/douglas-elliman: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Douglas Elliman Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Documentation 1

Reference material describing how the API behaves

Guides
Guides

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt
LLMsTxt

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

Conformance
Conformance
 Lifecycle
Lifecycle

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Contact
Contact

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 9

The organization behind the API

Website
Website
 About
About
 InvestorRelations
InvestorRelations
 Press
Press
 Careers
Careers
 Blog
Blog
 LinkedIn
LinkedIn
 Facebook
Facebook
 Instagram
Instagram

Scroll for all 9

Other 3

Properties that don't map to a standard resource type

SiteMap
SiteMap
 Research
Research
 Research
Research

Source (apis.yml)

apis.yml Raw ↑ 
aid: douglas-elliman
url: https://raw.githubusercontent.com/api-evangelist/douglas-elliman/refs/heads/main/apis.yml
name: Douglas Elliman
kind: company
description: 'Douglas Elliman Inc. (NYSE: DOUG) is a residential real estate brokerage founded in 1911 and headquartered at
  575 Madison Avenue, New York City. It is one of the largest brokerages in the New York metropolitan area and among the largest
  in the United States, with roughly 6,000 agents across New York, Florida, California, Texas, Colorado, Massachusetts, Connecticut,
  Nevada, New Jersey, Vermont, the Mid-Atlantic, and international outposts in France and Monaco. Its home market is the United
  States. In the value chain Douglas Elliman sits on the SELL side as a licensed brokerage and MLS participant — it consumes
  MLS listing data under IDX and broker agreements rather than originating a syndicated feed — and it extends into development
  marketing, property management, commercial brokerage, title and escrow (Douglas Elliman Title), relocation, and PropTech
  venture investment through New Valley Ventures. Its API posture is honest and thin: no developer portal, no published API
  documentation, no OpenAPI or OData $metadata contract, and no published access path of any kind. developer.elliman.com,
  developers.elliman.com, and docs.elliman.com all resolve to the marketing homepage via a wildcard catch-all rather than
  to a portal, and api.elliman.com exists as an IIS/ASP.NET host that returns HTTP 403 at its root with no documentation behind
  it. On RESO, Douglas Elliman Real Estate is listed as a Class D member (Brokers, Agents and Appraisers) on the RESO membership
  roster but does NOT appear in the RESO certified-organizations directory — it is a RESO member, not a RESO-certified data
  provider, and it publishes no Web API or Data Dictionary certification, no OData endpoint, and no UPI surface. The single
  public engineering artifact the company ships is a GitHub fork of a third-party .NET RETS client library, which is consumer-side
  evidence that Elliman pulls MLS data in rather than producer-side evidence that it exposes any.'
type: Index
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: No published developer access
  confidence: high
  source: []
  generated: '2026-07-26'
  method: probed
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/douglas-elliman.png
tags:
- Real Estate
- United States
- Brokerage
- Property Listings
- MLS
- IDX
- RESO
- Rentals
- Commercial Real Estate
- Property Management
- Title
- Escrow
- PropTech
- Luxury Real Estate
- New Development
created: '2026-07-26'
modified: '2026-07-26'
specificationVersion: '0.19'
apis: []
common:
- type: DomainSecurity
  url: security/douglas-elliman-domain-security.yml
- type: Website
  url: https://www.elliman.com/
- type: About
  url: https://www.elliman.com/about-us
- type: InvestorRelations
  url: https://investors.elliman.com/
- type: TermsOfService
  url: https://www.elliman.com/terms-of-service
- type: PrivacyPolicy
  url: https://www.elliman.com/privacy-policy
- type: SiteMap
  url: https://www.elliman.com/site-map
- type: Press
  url: https://www.elliman.com/press-news
- type: Careers
  url: https://www.elliman.com/careers
- type: Research
  url: https://www.elliman.com/corporate-resources/market-reports
- type: Research
  url: https://www.elliman.com/corporate-resources/research-reports
- type: Guides
  url: https://www.elliman.com/sellers-buyers-renters-guides
  note: Consumer buyer/seller/renter guides. Retyped from Documentation in the 2026-07-26 enrichment round — these are not
    API documentation and Douglas Elliman publishes none.
- type: Blog
  url: https://www.elliman.com/insider
- type: Contact
  url: https://www.elliman.com/offices
- type: Conformance
  url: conformance/douglas-elliman-conformance.yml
- type: Lifecycle
  url: lifecycle/douglas-elliman-lifecycle.yml
- type: LLMsTxt
  url: llms/douglas-elliman-llms.txt
- type: GitHubOrganization
  url: https://github.com/DouglasElliman
- type: LinkedIn
  url: https://www.linkedin.com/company/douglaselliman/
- type: Facebook
  url: https://www.facebook.com/DouglasElliman
- type: Instagram
  url: https://www.instagram.com/douglaselliman/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com