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: Indian Institute of Technology Bombay
providerId: iit-bombay
created: '2026-06-03'
modified: '2026-08-30'
reconciled: false
tags:
- Education
- Higher Education
- University
- Rate Limiting
description: 'IIT Bombay publishes no rate-limit table for any of its API surfaces. This entry is now
  measured rather than assumed: on 2026-08-30 eight unauthenticated GETs against the InstiApp API at https://gymkhana.iitb.ac.in/instiapp/api
  (events, bodies, news, mess, locations, buy/products, venter/complaints, venter/tags) all returned 200
  with no rate-limit headers of any kind — no X-RateLimit-*, no RateLimit-*, no Retry-After. No 429 was
  observed. The one throttling-adjacent behaviour actually found on an institution host is not a rate
  limit at all but a blanket 403 on the Central Library DSpace /oai path, which denies OAI-PMH harvesting
  outright rather than pacing it.'
notes: The previous version of this file asserted that OAI-PMH, IIIF and library endpoints may throttle
  harvesting. No IIIF surface exists on any IIT Bombay host and none was ever probed; that claim is withdrawn.
  Harvest politely regardless — absence of a published limit is not permission for volume.
sources:
- https://raw.githubusercontent.com/api-evangelist/iit-bombay/refs/heads/main/apis.yml
- https://gymkhana.iitb.ac.in/instiapp/api/docs/?format=openapi
- examples/iit-bombay-instiapp-examples.yml
responseCodes:
  throttled: 429
  observed: none — no 429 returned by any probe
limits:
- name: Default
  scope: client
  metric: requests-per-minute
  limit: none published, none observed
  notes: No rate-limit headers on any of eight probed unauthenticated InstiApp API responses (2026-08-30).
policies:
- name: Backoff Strategy
  description: Exponential backoff with jitter; honor Retry-After if it ever appears; harvest during off-peak
    hours.
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
method: probed
generated: '2026-08-30'