CoStar Group

aid: costar
name: CoStar Group
url: https://raw.githubusercontent.com/api-evangelist/costar/refs/heads/main/apis.yml
description: >-
  CoStar Group is the dominant commercial and residential real estate data,
  analytics, and marketplace company. The portfolio spans the flagship CoStar
  commercial real estate intelligence platform, LoopNet (CRE marketplace),
  Apartments.com network (residential rentals, including ForRent.com and
  Westside Rentals), Homes.com and Homesnap (for-sale residential), Ten-X
  (online CRE auctions), BizBuySell (business-for-sale marketplace), STR
  (hotel data), Visual Lease (lease management), Matterport (3D spatial
  capture), and international properties including OnTheMarket (UK),
  Emporis (Germany), and a controlling stake in Domain Group (Australia).
  Distribution to partners is via enterprise data licensing, syndication
  feeds, and brand-specific marketplace tooling rather than a public
  self-serve developer portal.
kind: company
image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
tags:
  - Commercial Real Estate
  - Residential Real Estate
  - Real Estate Data
  - Marketplaces
  - Analytics
  - Listings
  - PropTech
created: '2026-05-23'
modified: '2026-05-23'
specificationVersion: '0.19'
apis:
  - aid: costar:costar
    name: CoStar Commercial Real Estate Platform
    description: >-
      CoStar's flagship commercial real estate information platform covering
      property, tenant, lease, sale, and market analytics across office,
      industrial, retail, multifamily, and specialty CRE asset classes. Data is
      licensed to enterprise customers and partners under contract.
    humanURL: https://www.costar.com
    baseURL: https://www.costar.com
    tags:
      - Commercial Real Estate
      - Analytics
      - Property Data
    properties:
      - type: Documentation
        url: https://www.costar.com
  - aid: costar:loopnet
    name: LoopNet
    description: >-
      The largest commercial real estate marketplace in the United States,
      surfacing CRE listings for sale and lease alongside CoStar-sourced
      analytics.
    humanURL: https://www.loopnet.com
    baseURL: https://www.loopnet.com
    tags:
      - Commercial Real Estate
      - Marketplace
      - Listings
    properties:
      - type: Documentation
        url: https://www.loopnet.com
  - aid: costar:apartments-com
    name: Apartments.com Network
    description: >-
      Residential rental marketplace network including Apartments.com,
      ForRent.com, and Westside Rentals, providing listings, leads, and
      advertising to multifamily owners and managers.
    humanURL: https://www.apartments.com
    baseURL: https://www.apartments.com
    tags:
      - Residential Rentals
      - Multifamily
      - Marketplace
    properties:
      - type: Documentation
        url: https://www.apartments.com
  - aid: costar:homes-com
    name: Homes.com
    description: >-
      Residential for-sale and rental marketplace operating agent-first
      branding and search, paired with the Homesnap mobile and agent tooling.
    humanURL: https://www.homes.com
    baseURL: https://www.homes.com
    tags:
      - Residential Real Estate
      - For Sale
      - Marketplace
    properties:
      - type: Documentation
        url: https://www.homes.com
  - aid: costar:homesnap
    name: Homesnap
    description: >-
      Mobile residential real estate search and agent productivity application
      that integrates with MLSs and Homes.com.
    humanURL: https://www.homesnap.com
    baseURL: https://www.homesnap.com
    tags:
      - Residential Real Estate
      - Mobile
      - MLS
    properties:
      - type: Documentation
        url: https://www.homesnap.com
  - aid: costar:ten-x
    name: Ten-X
    description: >-
      Online commercial real estate transaction and auction platform for buyers
      and sellers of CRE assets.
    humanURL: https://www.ten-x.com
    baseURL: https://www.ten-x.com
    tags:
      - Commercial Real Estate
      - Auctions
      - Transactions
    properties:
      - type: Documentation
        url: https://www.ten-x.com
  - aid: costar:bizbuysell
    name: BizBuySell
    description: >-
      Online marketplace for buying and selling small and mid-sized
      businesses, with broker tools and financing partners.
    humanURL: https://www.bizbuysell.com
    baseURL: https://www.bizbuysell.com
    tags:
      - Business For Sale
      - Marketplace
      - SMB
    properties:
      - type: Documentation
        url: https://www.bizbuysell.com
  - aid: costar:str
    name: STR (Smith Travel Research)
    description: >-
      Hotel benchmarking, performance data, and analytics provider serving the
      global lodging industry.
    humanURL: https://str.com
    baseURL: https://str.com
    tags:
      - Hospitality
      - Hotel Data
      - Benchmarking
    properties:
      - type: Documentation
        url: https://str.com
  - aid: costar:visual-lease
    name: Visual Lease
    description: >-
      Lease management and lease accounting platform for corporate and real
      estate tenants.
    humanURL: https://visuallease.com
    baseURL: https://visuallease.com
    tags:
      - Lease Management
      - Lease Accounting
      - Corporate Real Estate
    properties:
      - type: Documentation
        url: https://visuallease.com
  - aid: costar:matterport
    name: Matterport
    description: >-
      3D spatial data capture platform used to digitise real estate, retail,
      and built-environment spaces, integrated across CoStar's marketplaces.
    humanURL: https://matterport.com
    baseURL: https://matterport.com
    tags:
      - 3D Capture
      - Spatial Data
      - PropTech
    properties:
      - type: Documentation
        url: https://matterport.com
  - aid: costar:onthemarket
    name: OnTheMarket
    description: >-
      UK residential property portal acquired by CoStar Group, providing for
      sale and to let listings with agent tooling.
    humanURL: https://www.onthemarket.com
    baseURL: https://www.onthemarket.com
    tags:
      - Residential Real Estate
      - United Kingdom
      - Marketplace
    properties:
      - type: Documentation
        url: https://www.onthemarket.com
  - aid: costar:emporis
    name: Emporis
    description: >-
      Global building data and imagery provider covering high-rise and
      commercial structures.
    humanURL: https://www.emporis.com
    baseURL: https://www.emporis.com
    tags:
      - Building Data
      - Imagery
      - Real Estate
    properties:
      - type: Documentation
        url: https://www.emporis.com
  - aid: costar:domain-group
    name: Domain Group
    description: >-
      Australian residential real estate marketplace and media company in which
      CoStar Group acquired a majority stake.
    humanURL: https://www.domain.com.au
    baseURL: https://www.domain.com.au
    tags:
      - Residential Real Estate
      - Australia
      - Marketplace
    properties:
      - type: Documentation
        url: https://www.domain.com.au
  - aid: costar:lands-of-america
    name: Land.com / Lands of America
    description: >-
      Land-for-sale marketplace network covering rural, ranch, recreational,
      and development land in the United States.
    humanURL: https://www.land.com
    baseURL: https://www.land.com
    tags:
      - Land
      - Marketplace
      - Rural
    properties:
      - type: Documentation
        url: https://www.land.com
common:
  - type: Website
    url: https://www.costargroup.com
  - type: CoStar
    url: https://www.costar.com
  - type: Investors
    url: https://www.costargroup.com/investors
  - type: News
    url: https://www.costargroup.com/news
  - type: LinkedIn
    url: https://www.linkedin.com/company/costar-group/
maintainers:
  - FN: Kin Lane
    email: [email protected]