Gadjah Mada University

UGM Single Sign-On (CAS)

Central Authentication Service at sso.ugm.ac.id/cas, the login surface UGM systems redirect users to. A bare GET redirects to /cas/login and returns the login form (200, verified 2026-09-01). CAS defines a machine-readable /serviceValidate response, but UGM publishes no service-registration route, no protocol documentation and no developer-facing contract for it, so it is recorded as an authentication surface rather than as an API. It sits alongside, not behind, the OAuth server and the Shibboleth IdP — three institution-operated identity stacks.

Documentation GitHub

Documentation

📖

Authentication

https://raw.githubusercontent.com/api-evangelist/gadjah-mada-university/refs/heads/main/authentication/gadjah-mada-university-authentication.yml

📖

Documentation

https://dti.ugm.ac.id/knowledge-base/akses-365

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API entry from apis.yml

aid: gadjah-mada-university:sso-cas
name: UGM Single Sign-On (CAS)
description: Central Authentication Service at sso.ugm.ac.id/cas, the login surface UGM systems redirect
  users to. A bare GET redirects to /cas/login and returns the login form (200, verified 2026-09-01).
  CAS defines a machine-readable /serviceValidate response, but UGM publishes no service-registration
  route, no protocol documentation and no developer-facing contract for it, so it is recorded as an authentication
  surface rather than as an API. It sits alongside, not behind, the OAuth server and the Shibboleth IdP
  — three institution-operated identity stacks.
humanURL: https://dti.ugm.ac.id/knowledge-base/akses-365
baseURL: https://sso.ugm.ac.id/cas
tags:
- Authentication
- SSO
- CAS
- Identity
properties:
- type: Authentication
  url: authentication/gadjah-mada-university-authentication.yml
- type: Documentation
  url: https://dti.ugm.ac.id/knowledge-base/akses-365
x-operator: institution
x-operator-evidence: sso.ugm.ac.id is under the institution's own registrable domain and hosts the Shibboleth
  IdP on the same origin.
x-probe:
  baseURL_status: 200
  baseURL_effective: https://sso.ugm.ac.id/cas/login
  documentation_status: 200
  probed: '2026-09-01'