CarMax

CarMax Vehicle Search Server-Driven UI API

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.

GitHub

Other Resources

🔗
Engineering Blog
https://medium.com/carmax-engineering-blog/api-roles-aec7999c095c

API entry from apis.yml

apis.yml Raw ↑ 
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