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: Packback
providerId: packback
created: '2026-06-21'
modified: '2026-06-21'
reconciled: false
tags:
- Education
- EdTech
- AI
- LTI
- Rate Limiting
- Quotas
description: >-
  Packback does not publish a public developer REST API, and therefore does not
  publish developer-facing rate limits (RPM/TPM/quotas). The integration
  surface is the IMS Global LTI standard; any throttling that exists applies to
  LTI launches, Assignment and Grade Services (AGS) grade passback, and
  Names and Role Provisioning Services (NRPS) roster calls between the LMS and
  Packback, and is governed by the LMS and Packback's internal infrastructure
  rather than a documented public quota. No reconcilable rate-limit values are
  published.
notes: >-
  If and when Packback publishes a public API with documented limits, reconcile
  this artifact. Until then, limits relevant to integrators are those imposed by
  the LMS on LTI Advantage service calls (AGS / NRPS), not by a Packback API.
sources:
- https://packback.co/lti-integration/
- https://help.packback.co
responseCodes:
  throttled: not documented
limits:
- name: Public REST API Limits
  scope: account
  metric: requests
  limit: not applicable - no public REST API
  notes: Packback does not publish a public developer REST API; there are no documented developer rate limits.
- name: LTI Advantage Service Calls (AGS / NRPS)
  scope: integration
  metric: requests
  limit: governed by the LMS and platform, not publicly documented
  notes: Grade passback (AGS) and roster (NRPS) calls between the LMS and Packback follow LMS-side and platform-side limits; no public values published.
policies:
- name: LMS-Governed Throttling
  description: Any throttling of LTI service calls is governed by the LMS platform and Packback's infrastructure, not a published public quota.
- name: No Public API Quotas
  description: With no public developer API, there are no API keys, plans, or documented per-key rate limits to honor.
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com