generated: '2026-09-14'
method: searched
source: https://rankfabrik.com/documentation
note: >-
  RankFabrik does not publish a requests-per-second/minute rate limit. Throughput is
  governed by a monthly unit quota tied to the plan (Trial 500, Artisan 25,000,
  Studio 150,000 units/month, per product). When the quota is exhausted the API
  responds 429 and bills nothing further. The remaining quota is returned on every
  billable response via the x-unites-restantes header. Billability of a given call is
  signalled by x-appel-facture. No Retry-After or standard RateLimit-* headers are
  documented. Verified live: an unauthenticated request returns 401 before any quota
  check, so no runtime limit headers were observable anonymously.
limit_count: 1
limits:
  - scope: per-key (monthly unit quota)
    window: month
    limit: plan-dependent (Trial 500 / Artisan 25,000 / Studio 150,000 units)
    burst: null
    exhaustion_status: 429
    note: Resets to zero at the start of each billing month; no rollover; no overage billing.
response_headers:
  - name: x-unites-restantes
    meaning: Remaining monthly quota (units) after this call.
  - name: x-appel-facture
    meaning: Whether this call was billable.
  - name: mesures
    meaning: Duration, bytes, and units billed for the call.
standard_headers:
  ratelimit: false
  retry_after: false
  note: No X-RateLimit-* / RateLimit-* / Retry-After headers are documented.