generated: '2026-09-05'
method: probed
source: https://developer.esl.caseys.io/ + live unauthenticated responses from https://esl.caseys.io (2026-09-05)
limit_count: 0
rate_limits: []
headers_observed: []
status_on_exhaustion: null
note: No rate limit is documented anywhere Casey's publishes, and none is observable. Live anonymous responses
  from the gateway (401 on https://esl.caseys.io/fuelpriceapi/heartbeat, 404 on https://esl.caseys.io/.well-known/security.txt)
  return only Content-Type, Content-Length and Date — no RateLimit-*, X-RateLimit-*, Retry-After or Ocp-Apim-*
  quota header. Azure API Management enforces quotas through policy, and the policy is not exposed to
  unauthenticated visitors, so a limit may exist; an integrator cannot discover it before they hit it.
  An honest zero, not an unchecked field.