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: AAR Corp
providerId: aar
created: '2026-05-04'
# Provenance stamped 2026-08-11: this artifact was written by the API Evangelist
# bulk sweep dated 2026-05-04, not harvested from the provider. See roadmap#35.
method: probed
modified: '2026-08-29'
reconciled: true
limit_count: 0
tags:
  - Aviation
  - MRO
  - Aerospace
  - Rate Limiting
description: AAR does not publish public rate-limit documentation. Limits are governed by the underlying
  software product (Trax, Aerostrat, Airinmar) license or the parts-supply integration contract.
notes: >-
  Re-verified 2026-08-29. AAR publishes no rate-limit documentation on any host, and none was
  observable at runtime: live 200 responses from the one anonymously reachable AAR API surface
  (https://shop.aarcorp.com/rest/V1/directory/currency) carry NO rate-limit headers at all —
  the full response header set is content-type, cache-control, accept-ranges, x-platform-server,
  x-frame-options, traceresponse, x-timer, x-debug-info, date, x-served-by, x-cache,
  x-cache-hits, strict-transport-security, vary, content-length. No X-RateLimit-*, no
  RateLimit-*, no Retry-After. limit_count is 0 because nothing is published AND nothing is
  signalled, which is the worse of the two for an agent: there is no runtime signal to back
  off on.
observed_headers: []
observed_on:
  - url: https://shop.aarcorp.com/rest/V1/directory/currency
    status: 200
    rate_limit_headers: none
  - url: https://shop.aarcorp.com/rest/V1/products
    status: 401
    rate_limit_headers: none
  - url: https://api.aarcorp.com/
    status: 404
    rate_limit_headers: none
sources:
  - url: https://www.aarcorp.com
    status: 200
  - url: https://shop.aarcorp.com/rest/V1/directory/currency
    status: 200
responseCodes:
  throttled: 429
limits:
  - name: Customer integration throttling
    scope: account
    metric: varies
    limit: governed by product license / customer agreement; no public numeric ceiling
policies:
  - name: Contract-defined throttling
    description: Throughput for parts supply, Trax, Aerostrat, and Airinmar integrations is established
      in the customer agreement; coordinate volume changes with the AAR account team.
maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com