CarMax

aid: carmax
url: https://raw.githubusercontent.com/api-evangelist/carmax/refs/heads/main/apis.yml
name: CarMax
description: 'CarMax (NYSE: KMX) is the largest retailer of used cars in the United States, operating an omnichannel business
  that spans brick-and-mortar stores, carmax.com online purchasing, home delivery, financing, appraisals, and trade-ins. CarMax
  does not publish a public developer portal, but its engineering organization operates an extensive internal API program
  built around distinct API roles (Data Access Layer, Business Logic Layer, Server-Driven UI, Backend for Frontend). Public-facing
  APIs documented by the CarMax Engineering Blog include a Store Locations API and a Vehicle Inventory API, and CarMax has
  publicly discussed a Server-Driven UI API that controls vehicle search filters across web and mobile. Partner and syndication
  integrations are handled case by case rather than through a self-service portal.'
type: Index
kind: company
position: Consumer
access: Partner
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
tags:
- Auto Financing
- Auto Retail
- Appraisals
- Automotive
- Omnichannel
- Retail
- Server-Driven UI
- Used Cars
- Vehicle Inventory
- VIN Lookup
- Fortune 500
created: '2026-03-21'
modified: '2026-04-23'
specificationVersion: '0.19'
apis:
- aid: carmax:store-locations-api
  name: CarMax Store Locations API
  description: The CarMax Store Locations API, discussed publicly on the CarMax Engineering Blog, exposes details about all
    CarMax store locations including addresses, hours, services offered, and geographic metadata. It is consumed primarily
    by carmax.com, the CarMax mobile app, and CarMax's digital marketing and SEO systems. The API is not offered as a self-service
    product to third parties.
  humanURL: https://www.carmax.com/stores
  tags:
  - Auto Retail
  - Store Locator
  properties:
  - url: https://www.carmax.com/stores
    type: Documentation
  - url: https://medium.com/carmax-engineering-blog
    type: Engineering Blog
  x-features:
  - Address, hours, and services per store
  - Geographic metadata for mapping
  - Used as a source of truth across CarMax channels
  x-use-cases:
  - Store locator on carmax.com and mobile
  - SEO and local-landing-page generation
  - Internal operations dashboards
- aid: carmax:vehicle-inventory-api
  name: CarMax Vehicle Inventory API
  description: The CarMax Vehicle Inventory API exposes details about all used vehicles currently in CarMax's nationwide inventory,
    including year/make/model, trim, mileage, price, exterior and interior attributes, photos, and stock number. The API powers
    carmax.com's search experience and the Vehicle Detail Page. It is consumed internally and surfaced to customers through
    CarMax's own products rather than opened as a public partner feed.
  humanURL: https://www.carmax.com/cars
  tags:
  - Auto Retail
  - Automotive
  - Used Cars
  - Vehicle Inventory
  properties:
  - url: https://www.carmax.com/cars
    type: Documentation
  - url: https://medium.com/carmax-engineering-blog/api-roles-aec7999c095c
    type: Engineering Blog
  x-features:
  - Nationwide used-vehicle inventory
  - Year/make/model/trim, mileage, price, stock number
  - Exterior, interior, and photo metadata
  - Powers carmax.com search and VDP
  x-use-cases:
  - Online vehicle search and listing pages
  - Home delivery and store-transfer eligibility
  - Price and market analytics
  - Third-party automotive marketplaces (via syndication agreements)
- aid: carmax:vehicle-search-sdui-api
  name: CarMax Vehicle Search Server-Driven UI API
  description: The CarMax Vehicle Search Server-Driven UI API controls the search filters and list layouts presented across
    carmax.com and CarMax's mobile apps. It was rewritten approximately three years prior to March 2026 and is an example
    of a Server-Driven UI pattern where the back end determines which filters and controls render on the client. It is an
    internal API, not published for external developers.
  humanURL: https://www.carmax.com/cars
  tags:
  - Auto Retail
  - Omnichannel
  - Server-Driven UI
  properties:
  - url: https://medium.com/carmax-engineering-blog/api-roles-aec7999c095c
    type: Engineering Blog
  x-features:
  - Server-Driven UI filter and layout payloads
  - Consistent web and mobile experience
  - Back-end controlled A/B testing and rollout
  x-use-cases:
  - Unified search UX across channels
  - Rapid filter experimentation
  - Per-market and per-user personalization
common:
- type: GitHubOrganization
  url: https://github.com/CarMax
- type: Website
  url: https://www.carmax.com/
- type: Stores
  url: https://www.carmax.com/stores
- type: Cars
  url: https://www.carmax.com/cars
- type: Finance
  url: https://www.carmax.com/finance
- type: Sell Your Car
  url: https://www.carmax.com/sell-my-car
- type: Engineering Blog
  url: https://medium.com/carmax-engineering-blog
- type: Careers
  url: https://jobs.carmax.com/
- type: Investor Relations
  url: https://investors.carmax.com/
- type: Contact
  url: https://www.carmax.com/customer-service
- type: TermsOfService
  url: https://www.carmax.com/terms
- type: PrivacyPolicy
  url: https://www.carmax.com/privacy
- type: LinkedIn
  url: https://www.linkedin.com/company/carmax
- type: X
  url: https://x.com/CarMax
- type: Facebook
  url: https://www.facebook.com/CarMax
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com