specification: API Commons Plans
specificationVersion: '0.1'
schema: https://raw.githubusercontent.com/api-evangelist/interface-research/main/schema/api-commons.yml#/$defs/Plans
provider: National University of Singapore
providerId: nus
created: '2026-06-03'
modified: '2026-08-19'
reconciled: false
tags:
- Education
- Higher Education
- University
- Plans
description: 'National University of Singapore is a non-commercial higher-education institution and sells
  no API access. There is no pricing, no plan tier and no self-service signup anywhere in its estate.
  Access is governed by institutional affiliation rather than payment: the identity service at vafs.nus.edu.sg
  issues a client_id only when NUS Information Technology creates one, the campus shuttle bus API requires
  HTTP Basic credentials NUS does not publish, and the Canvas API requires an NUS account. The publicly
  readable surfaces - OIDC and SAML metadata, OAI-PMH, the DSpace REST API and the WordPress REST API
  - are free and open with no registration at all.'
notes: '"Free / Open" describes the anonymously readable metadata endpoints. Everything else is affiliation-gated,
  not priced.'
sources:
- https://raw.githubusercontent.com/api-evangelist/nus/refs/heads/main/apis.yml
plans:
- id: nus-free-open
  name: Free / Open
  type: free
  description: Public open APIs (metadata, library, repository, course data) offered at no charge, generally
    for non-commercial use.
  entries:
  - label: Open API Access
    name: open_api_access
    type: free
    metric: requests
    limit: -1
    timeFrame: usage
    geo: global
    unit: 1
    price: '0.00'
    userMultiplied: false
- id: nus-affiliation
  name: Affiliation / Credentialed
  type: free
  description: Administrative and identity APIs gated behind institutional SSO, client certificates, or
    federation membership rather than payment.
  entries:
  - label: Credentialed Access
    name: credentialed_access
    type: free
    metric: requests
    limit: -1
    timeFrame: usage
    geo: global
    unit: 1
    price: '0.00'
    userMultiplied: false
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
generated: '2026-08-19'
method: probed