specification: API Commons Rate Limits
specificationVersion: '0.1'
schema: https://raw.githubusercontent.com/api-evangelist/interface-research/main/schema/api-commons.yml#/$defs/RateLimits
provider: CarMax
providerId: carmax
created: '2026-05-04'
modified: '2026-09-05'
generated: '2026-09-05'
method: searched
source: web search + site probes for CarMax API rate-limit documentation (2026-09-05)
reconciled: true
tags:
  - Automotive
  - Used Cars
  - Vehicle Inventory
  - Rate Limiting
limit_count: 0
limits: []
headers: []
description: >-
  CarMax documents no rate limits. There is no public API, no developer documentation and
  therefore no published quota, window, burst allowance, response header (X-RateLimit-*,
  RateLimit-*, Retry-After) or exhaustion status code. Partner syndication traffic is
  governed by bilateral agreements that are not published.
notes: >-
  Rewritten 2026-09-05. The previous version was written by the 2026-05-04 bulk sweep with
  method "generated" and asserted a "Per-partner contract limit", a 429 throttle code and
  three policies (partner scoping, exponential backoff, inventory freshness) that CarMax
  has never published. Those were derived from nothing and have been removed. limit_count
  is now 0, which is the honest measurement.
sources:
  - url: https://www.carmax.com/
    status: 403
    note: no developer documentation exists to carry rate limits
maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com