generated: '2026-09-01'
method: derived
source: >-
  Derived by API Evangelist from apis.yml and from live probes of Hokkaido University
  surfaces on 2026-09-01. Hokkaido University publishes no plan, rate-limit or billing
  document; this artifact records that absence rather than restating a provider claim.
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: Hokkaido University
providerId: hokkaido
created: '2026-06-03'
modified: '2026-06-03'
reconciled: false
tags:
- Education
- Higher Education
- University
- Rate Limiting
description: >-
  Hokkaido University publishes no rate-limit documentation of any kind. The only
  machine-readable surfaces it operates are XML sitemaps and SAML metadata, and neither
  carries a documented limit. HUSCAP's robots.txt does state a crawl policy — Crawl-delay:
  10, Disallow: / with explicit Allow for /repo/huscap/all/ and /sitemap/ — and that is
  the closest thing to a published limit the institution offers. Honor it.
notes: >-
  Probed 2026-09-01. No 429 policy, Retry-After documentation or per-service limit table
  was found. The robots.txt crawl-delay is the operative constraint.
sources:
- https://raw.githubusercontent.com/api-evangelist/hokkaido/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