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: Urlbox
providerId: urlbox
created: '2026-06-20'
modified: '2026-06-20'
reconciled: true
tags:
- Screenshots
- Rendering
- PDF
- Video
- Web Capture
- Rate Limiting
- Quotas
- Throttling
description: >-
  Urlbox enforces two layers of limits: a requests-per-minute (RPM) throttle that
  scales by subscription tier, and a monthly render quota tied to each plan's
  included render allowance. Requests served from cache do not count against the
  render quota. Render usage is exposed on every response via x-renders-used,
  x-renders-allowed, x-renders-remaining, and x-renders-reset headers, and
  exceeding the RPM throttle returns HTTP 429.
notes: >-
  Per-minute values are published on the Urlbox pricing page and vary by tier;
  monthly render quotas equal each plan's included render allowance. Verify on
  reconciliation.
sources:
- https://urlbox.com/pricing
- https://urlbox.com/docs/api
responseCodes:
  throttled: 429
limits:
- name: Requests Per Minute (Lo-Fi)
  scope: account
  metric: requests
  limit: 30
  notes: Lo-Fi tier per-minute request throttle.
- name: Requests Per Minute (Hi-Fi)
  scope: account
  metric: requests
  limit: 60
  notes: Hi-Fi tier per-minute request throttle.
- name: Requests Per Minute (Ultra)
  scope: account
  metric: requests
  limit: 250
  notes: Ultra tier per-minute request throttle.
- name: Requests Per Minute (Business)
  scope: account
  metric: requests
  limit: 1000
  notes: Business tier per-minute request throttle.
- name: Requests Per Minute (Enterprise)
  scope: account
  metric: requests
  limit: unlimited
  notes: Enterprise tier negotiated/unlimited per-minute throughput.
- name: Monthly Render Quota
  scope: account
  metric: renders
  limit: per plan allowance
  notes: >-
    Equal to the included render allowance of the active plan; over-quota usage
    triggers an automatic tier upgrade. Cached renders are not counted.
policies:
- name: Cache Exemption
  description: Requests served from the render cache do not count against the monthly render quota or RPM throttle.
- name: Automatic Tier Upgrade
  description: Sustained usage above the plan allowance automatically upgrades the account to the next tier.
- name: Usage Headers
  description: x-renders-used, x-renders-allowed, x-renders-remaining, and x-renders-reset headers report quota state on every response.
- name: Backoff Strategy
  description: Clients should implement exponential backoff with jitter on HTTP 429 responses.
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com