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: University of California, San Diego
providerId: ucsd
created: '2026-06-03'
modified: '2026-08-19'
reconciled: false
tags:
- Education
- Higher Education
- University
- Rate Limiting
description: >-
  University of California, San Diego does not publish a unified public rate-limit table across
  its APIs, and no per-service limit was found in any published document. Probed 2026-08-19: the
  Library Digital Collections JSON endpoints (library.ucsd.edu/dc/search.json,
  /dc/object/{id}.json) answered anonymously with no rate-limit headers and no documented cap;
  the campus API gateway (api.ucsd.edu, WSO2 API Manager 4.1.0) and the TritonAI LLM gateway
  (tritonai-api.ucsd.edu) both enforce limits behind credentials that are issued only to campus
  affiliates, so their tiers are not externally observable. Harvest politely, honor Retry-After,
  and contact the service owner for bulk access.
notes: >-
  Confirm per-service limits with each API's owner; harvest responsibly. CORRECTION 2026-08-19:
  an earlier version of this artifact asserted throttling on "OAI-PMH, IIIF, library" endpoints.
  No OAI-PMH or IIIF surface exists on a ucsd.edu host — see conformance/ucsd-conformance.yml —
  and that claim has been removed rather than restated.
sources:
- https://raw.githubusercontent.com/api-evangelist/ucsd/refs/heads/main/apis.yml
responseCodes:
  throttled: 429
limits:
- name: Default
  scope: client
  metric: requests-per-minute
  limit: see service documentation
  notes: No published global limit; large harvests may be rate-limited.
policies:
- name: Backoff Strategy
  description: Exponential backoff with jitter; honor Retry-After; harvest during off-peak hours.
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com