University of Groningen · Authentication Profile

University Of Groningen Authentication

Authentication

How access actually works across the University of Groningen's programmable surfaces, established by calling each one on 2026-08-30. There is no institutional developer portal, no API key issuance and no self-service registration anywhere in this footprint. Access is one of three things: fully open, gated behind the University's SAML single sign-on, or gated behind a key that a vendor's platform issues to the institution rather than to a developer.

University of Groningen declares 4 security scheme(s) across its OpenAPI definitions.

EducationHigher EducationUniversityNetherlandsEuropeResearchResearch DataCourse CatalogIdentity FederationOAI-PMHLibraryMetadataOpen Data

Methods: Schemes: 4 OAuth flows: API key in:

Security Schemes

none open

saml-sso federated

api-key apiKey

· in: header (api-key)

Source

Authentication Profile

specification: API Commons Authentication
specificationVersion: '0.1'
provider: University of Groningen
providerId: university-of-groningen
generated: '2026-08-30'
method: probed
x-operator: institution
description: >-
  How access actually works across the University of Groningen's programmable surfaces, established
  by calling each one on 2026-08-30. There is no institutional developer portal, no API key issuance
  and no self-service registration anywhere in this footprint. Access is one of three things: fully
  open, gated behind the University's SAML single sign-on, or gated behind a key that a vendor's
  platform issues to the institution rather than to a developer.
source:
  - https://ocasys.rug.nl/api/2026-2027/course?searchTerm=biology
  - https://ocasys.rug.nl/api/2026-2027/course-offering?permission=READ
  - https://pure.rug.nl/ws/oai?verb=Identify
  - https://pure.rug.nl/ws/api
  - https://signon.rug.nl/nidp/saml2/metadata
schemes:
  - name: none
    type: open
    surface: Ocasys course catalog API (ocasys.rug.nl/api) — read paths
    operator: institution
    description: >-
      Course search, course detail, programme search, faculties, option lists and academic years
      answer 200 to an unauthenticated GET with no key, no token and no Origin restriction observed.
    evidence:
      url: https://ocasys.rug.nl/api/2026-2027/course?searchTerm=biology
      status: 200
  - name: none
    type: open
    surface: UG Research Portal OAI-PMH (pure.rug.nl/ws/oai)
    operator: institution
    description: All OAI-PMH verbs answer unauthenticated; harvesting is open, subject to polite use.
    evidence:
      url: https://pure.rug.nl/ws/oai?verb=Identify
      status: 200
  - name: saml-sso
    type: federated
    surface: Gated Ocasys paths, the Rooster timetable app, and staff/student systems
    operator: institution
    description: >-
      Institutional single sign-on via the University's own SAML 2.0 identity provider at
      signon.rug.nl, federated through SURFconext and eduGAIN. There is no public route to a session:
      an account is issued to affiliates, not to developers. The gated Ocasys endpoints return a bare
      403 with no problem body and no WWW-Authenticate hint.
    evidence:
      url: https://ocasys.rug.nl/api/2026-2027/course-offering?permission=READ
      status: 403
  - name: api-key
    type: apiKey
    in: header
    parameter: api-key
    surface: Elsevier Pure REST API deployed at pure.rug.nl/ws/api
    operator: tenant
    description: >-
      The Pure web-services API requires an api-key header. The key is provisioned by the University
      to its own integrations through the Pure administration console; there is no public request
      form. The contract, the documentation and the scheme are Elsevier's — pure.rug.nl/ws/api
      redirects to a documentation page whose canonical link is api.elsevierpure.com — so this is
      recorded as a tenant deployment rather than a University of Groningen API.
    evidence:
      url: https://pure.rug.nl/ws/api
      status: 200
      note: Redirects to /ws/api/documentation/index.html with rel=canonical https://api.elsevierpure.com/ws/api/documentation/index.html
notes: >-
  No OAuth 2.0, no OpenID Connect client registration and no personal access tokens were found on any
  University of Groningen host. For an agent, the practical answer is that the course catalog and the
  OAI-PMH endpoint are callable today and everything else is closed.

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