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National University of Singapore Session API

End-user claims and session termination.

National University of Singapore Session API is one of 10 APIs that National University of Singapore publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

This API exposes 1 JSON Schema definition.

Tagged areas include Session. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, authentication docs, and 1 JSON Schema.

This API exposes 2 operations across 2 paths, and defines 1 schema. It is described by OpenAPI 3.2.0, at version 2026-08-19.

Requests are made against a single base URL, https://vafs.nus.edu.sg.

2 operations 2 paths 1 schemas 2 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
2026-08-19
Base URL
https://vafs.nus.edu.sg/adfs
Authentication
HTTP Bearer, HTTP Basic, API Key, OpenID Connect
Terms of Service
Resource Areas
1

Authentication & Security 4

National University of Singapore Session API declares 4 security schemes for authenticating requests. It accepts HTTP bearer tokens (JWT) (bearerAuth). It accepts HTTP basic authentication (clientSecretBasic). An API key is passed in the header as Authorization (clientSecretPost). It supports OpenID Connect (oidc) discovered at https://vafs.nus.edu.sg/adfs/.well-known/openid-configuration.

  • clientSecretBasic — clientsecretbasic client authentication.
  • clientSecretPost — Placeholder for clientsecretpost; the provider also advertises privatekeyjwt and windowsclientauthentication.

Paths & Operations 2

Across 2 paths, the API surfaces 2 operations — 2 GET. Each is listed below with its method, path, parameters, and response codes.

Session 2

End-user claims and session termination.

GET
/adfs/userinfo
UserInfo endpoint
userinfo → 200401
GET
/adfs/oauth2/logout
End session / front-channel logout endpoint
endSession 2 params → 302

Schemas 1

The contract defines 1 schema that model the data the API accepts and returns. The most detailed is UserInfo (16 properties). Each schema is shown below with its type and property counts.

UserInfo
object
Claims the provider advertises in claimssupported. NUS issues pairwise subject identifiers, so sub is per-client and not a stable cross-client campus identifie…
16 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

nus-session-api-openapi.yml Raw ↑

Other APIs National University of Singapore publishes across the network.

NUS NextBus (Internal Shuttle Bus) API
ScholarBank@NUS DSpace REST API
ScholarBank@NUS OAI-PMH Interface
NUS Canvas LMS API
Blog.nus WordPress REST API
NUSMods API (student-operated, not endorsed)
NUS entry in the Singapore Access Federation
National University of Singapore Authorization API
National University of Singapore Discovery API
Where this information came from

This is an independent, third-party profile of National University of Singapore Session API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

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