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: Cronofy
providerId: cronofy
created: '2026-06-21'
modified: '2026-06-21'
reconciled: false
tags:
- Scheduling
- Calendar
- Availability
- Booking
- Productivity
- Rate Limiting
- Quotas
- Throttling
description: >-
  Cronofy advertises unlimited API calls on its paid API tiers and does not
  publish fixed numeric per-second or per-minute request quotas in its public
  developer documentation. To protect the platform, Cronofy applies abuse
  protection and may throttle abnormal traffic, returning HTTP 429 when a
  client is temporarily rate limited. The batch endpoint caps a single
  request at 50 sub-requests. Specific numeric limits are not reconciled in
  this artifact.
notes: >-
  Verify current throttling behaviour, Retry-After handling, and any
  account- or endpoint-specific limits with Cronofy support and the developer
  documentation during reconciliation. "Unlimited API calls" is a commercial
  statement and does not preclude protective throttling.
sources:
- https://docs.cronofy.com/developers/api/
- https://docs.cronofy.com/developers/api/batch/
- https://www.cronofy.com/api-pricing
responseCodes:
  throttled: 429
limits:
- name: Request Throttling
  scope: account
  metric: requests
  limit: not publicly published (unlimited API calls advertised; protective throttling applies)
  notes: Cronofy may return 429 when abnormal or abusive traffic is detected.
- name: Batch Sub-Requests
  scope: request
  metric: requests
  limit: 50
  notes: The batch endpoint allows up to 50 requests to be submitted in a single call.
policies:
- name: Abuse Protection
  description: Cronofy throttles abnormal traffic to protect platform stability even though paid tiers advertise unlimited API calls.
- name: Backoff Strategy
  description: Clients should implement exponential backoff with jitter and honor Retry-After on 429 responses.
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com