Homes.com

Homes.com is a United States residential real estate portal owned by CoStar Group, which acquired the property in 2021 and folded the Homesnap agent application into it — homesnap.com now issues an HTTP 301 to www.homes.com. It sits on the consumer-facing portal layer of the US housing value chain, alongside Zillow, Realtor.com, and Redfin: it aggregates for-sale, for-rent, and off-market listings sourced from Multiple Listing Services and broker syndication, and monetises through an agent-first "your listing, your lead" advertising and agent-directory product rather than through data distribution. Its API posture is empty in both directions of the RESO question. Homes.com appears in the RESO organization directory as an active Technology Company (OrganizationUniqueId T00000143), but the Data Dictionary and Web API certification columns for that row are blank — it holds no RESO certification of any version, unlike rival Move/Realtor.com (Data Dictionary 1.7 Passed, Web API Core 2.0.0 Passed) or Zillow's Bridge Interactive (Data Dictionary 1.7 and Web API Core 2.0.0, Certified Legacy). Separately, no developer surface is published at all: developer., developers., api., docs., apis., dev., idx., feeds., and data. subdomains of homes.com do not resolve in DNS, and every path on www.homes.com returns HTTP 403 to non-browser clients behind Akamai bot protection. Listing data moves INTO Homes.com from MLSs and brokers via syndication opt-in, not OUT through any documented API. No OpenAPI, no OData $metadata, no webhooks, no SDK, no Postman collection, and no published authentication scheme were found. The GitHub organizations Homesnap and CoStarGroup contain only archived forks of third-party libraries — including libRETS, which is evidence of consuming MLS feeds rather than publishing them. Third-party "Homes.com APIs" on RapidAPI, Apify, Parse, and RealtyAPI are unofficial scrapers and are not recorded here as provider APIs.

Homes.com is profiled on the APIs.io network. Tagged areas include Real Estate, United States, Property Listings, MLS, and RESO.

Homes.com’s developer surface includes support, engineering blog, pricing, signup flow, and 24 more developer resources.

22.2/100 emerging ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs
Real EstateUnited StatesProperty ListingsMLSRESOIDXRentalsPropTechPortalsMarketplacesResidential Real EstateReal Estate AgentsBrokersListings SyndicationCoStar Group

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 22.2/100 · emerging
Contract Quality 0.0 / 25
Developer Ergonomics 1.3 / 20
Commercial Clarity 12.1 / 20
Operational Transparency 2.1 / 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/homes-com: 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 3

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

Homes Com Domain Security

TLSv1.3 · DMARC

SECURITY

Homes Com Vulnerability Disclosure

Hackerone · contact published

SECURITY

Homes Com Trust Center

PCI DSS, ISO/IEC 27001, NIST CSF, SOC 1 Type 2, SOC 1 Type 2

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

Build 2

SDKs, sample code, and the tooling you integrate with

Access & Security 6

Authentication, authorization, and security posture

Operate 2

Status, limits, changes, and where to get help

Commercial 3

Pricing, plans, and the legal terms of use

Company 6

The organization behind the API

Other 5

Properties that don't map to a standard resource type

Source (apis.yml)

apis.yml Raw ↑
aid: homes-com
name: Homes.com
url: https://raw.githubusercontent.com/api-evangelist/homes-com/refs/heads/main/apis.yml
kind: company
description: 'Homes.com is a United States residential real estate portal owned by CoStar Group, which acquired the property
  in 2021 and folded the Homesnap agent application into it — homesnap.com now issues an HTTP 301 to www.homes.com. It sits
  on the consumer-facing portal layer of the US housing value chain, alongside Zillow, Realtor.com, and Redfin: it aggregates
  for-sale, for-rent, and off-market listings sourced from Multiple Listing Services and broker syndication, and monetises
  through an agent-first "your listing, your lead" advertising and agent-directory product rather than through data distribution.
  Its API posture is empty in both directions of the RESO question. Homes.com appears in the RESO organization directory as
  an active Technology Company (OrganizationUniqueId T00000143), but the Data Dictionary and Web API certification columns
  for that row are blank — it holds no RESO certification of any version, unlike rival Move/Realtor.com (Data Dictionary 1.7
  Passed, Web API Core 2.0.0 Passed) or Zillow''s Bridge Interactive (Data Dictionary 1.7 and Web API Core 2.0.0, Certified
  Legacy). Separately, no developer surface is published at all: developer., developers., api., docs., apis., dev., idx.,
  feeds., and data. subdomains of homes.com do not resolve in DNS, and every path on www.homes.com returns HTTP 403 to non-browser
  clients behind Akamai bot protection. Listing data moves INTO Homes.com from MLSs and brokers via syndication opt-in, not
  OUT through any documented API. No OpenAPI, no OData $metadata, no webhooks, no SDK, no Postman collection, and no published
  authentication scheme were found. The GitHub organizations Homesnap and CoStarGroup contain only archived forks of third-party
  libraries — including libRETS, which is evidence of consuming MLS feeds rather than publishing them. Third-party "Homes.com
  APIs" on RapidAPI, Apify, Parse, and RealtyAPI are unofficial scrapers and are not recorded here as provider APIs.'
type: Index
position: Provider
access: 3rd-Party
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-26'
  method: manual
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
tags:
- Real Estate
- United States
- Property Listings
- MLS
- RESO
- IDX
- Rentals
- PropTech
- Portals
- Marketplaces
- Residential Real Estate
- Real Estate Agents
- Brokers
- Listings Syndication
- CoStar Group
created: '2026-07-26'
modified: '2026-07-26'
specificationVersion: '0.19'
apis: []
common:
- type: DomainSecurity
  url: security/homes-com-domain-security.yml
- type: TrustCenter
  name: CoStar Group Trust Center (parent company)
  url: https://trust.costargroup.com/
- type: TrustCenter
  name: Trust center artifact
  url: security/homes-com-trust-center.yml
- type: Compliance
  name: PCI DSS, ISO/IEC 27001, NIST CSF (CoStar Group corporate scope)
  url: https://trust.costargroup.com/
- type: VulnerabilityDisclosure
  url: security/homes-com-vulnerability-disclosure.yml
- type: Security
  name: CoStar Group responsible disclosure (csgpappsec@costar.com)
  url: https://trust.costargroup.com/
- type: Conformance
  url: conformance/homes-com-conformance.yml
- type: Lifecycle
  url: lifecycle/homes-com-lifecycle.yml
- type: LLMsTxt
  url: llms/homes-com-llms.txt
- type: Website
  url: https://www.homes.com/
- type: About
  url: https://www.homes.com/about/
- type: Support
  url: https://support.homes.com/
- type: Blog
  url: https://www.homes.com/blog/
- type: TermsOfService
  url: https://www.homes.com/about/homesterms-of-use
- type: PrivacyPolicy
  url: https://www.homes.com/about/policies/#privacy-policy
- type: Accessibility
  url: https://www.homes.com/about/accessibility/
- type: Contact
  url: https://www.homes.com/about/contact-us/
- type: Sitemap
  url: https://www.homes.com/sitemap/
- type: Parent
  url: https://www.costargroup.com/
- type: Predecessor
  url: https://www.homesnap.com/
- type: StandardsBody
  url: https://www.reso.org/certification/
- type: Pricing
  name: Homes.com Membership — paid agent plans (rates by quote, not published)
  url: https://www.homes.com/solutions/membership
- type: SignUp
  name: Join Homes.com (agent account; grants a directory profile, not an API credential)
  url: https://www.homes.com/solutions/join-now
- type: GitHubOrganization
  url: https://github.com/Homesnap
- type: GitHubOrganization
  name: CoStar Group (parent)
  url: https://github.com/CoStarGroup
- type: LinkedIn
  url: https://www.linkedin.com/company/homes-com
- type: Twitter
  url: https://twitter.com/homesdotcom
- type: Facebook
  url: https://www.facebook.com/homesdotcom
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com