generated: '2026-07-25'
method: searched
source: https://developer.kpn.com/documentation-response-headers
docs:
- https://developer.kpn.com/documentation-response-headers
- https://developer.kpn.com/page/getting-started
model: Apigee quota policy enforced per product/app, surfaced on every response through quota-* headers.
headers:
- name: quota-limit
  description: Number of API calls a user can make within the given time period
- name: quota-interval
  description: Integer paired with quota-time-unit that defines the quota window
- name: quota-time-unit
  description: Unit of time applicable to the quota
- name: quota-used
  description: Number of API calls made within the current quota window
- name: quota-reset-UTC
  description: When the quota window resets, expressed in Coordinated Universal Time
error:
  status: 429
  title: Too Many Requests
  documented_on_operations: 212
  source: errors/kpn-problem-types.yml
limits:
- scope: sandbox / testing
  limit_count: null
  description: Testing is free with a per-API request limit; extra free test requests can be requested through support.
  source: https://developer.kpn.com/page/getting-started
- scope: KPN SMS API request payload
  limit_count: 200
  limit_unit: messages x recipients per call
  description: A single POST /send call may not exceed 200 message-recipient combinations.
  source: https://developer.kpn.com/documentation/kpn-sms-api-documentation
- scope: KPN SMS API message length
  limit_count: 1000
  limit_unit: characters
  description: Maximum message length 1000 characters; messages over 160 characters are split into multiple SMS.
  source: https://developer.kpn.com/documentation/kpn-sms-api-documentation
notes:
- KPN does not publish the numeric per-product quota values; they are provisioned per project and readable at runtime
  from the quota-limit / quota-used headers.