Keio University

Keio Okta Tenant — OpenID Connect

Keio runs an Okta tenant at keio.okta.com behind its campus applications; gslbs.keio.jp redirects an anonymous request into a SAML authentication request against it. The tenant's OpenID Connect discovery document is anonymously readable and advertises authorization, token, userinfo, JWKS and client-registration endpoints. The tenant, the users and the applications are Keio's; the identity service, its contract and its engineering are Okta's, and the discovery document is the one Okta publishes for every org — so Okta's contract is deliberately not saved under this institution. Readable, but not consumable: a client_id exists only if Keio IT creates one.

Documentation GitHub

Documentation

📖

Authentication

https://raw.githubusercontent.com/api-evangelist/keio/refs/heads/main/authentication/keio-authentication.yml

Other Resources

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Examples

https://raw.githubusercontent.com/api-evangelist/keio/refs/heads/main/examples/keio-okta-openid-configuration.json

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API entry from apis.yml

aid: keio:okta
name: Keio Okta Tenant — OpenID Connect
description: 'Keio runs an Okta tenant at keio.okta.com behind its campus applications; gslbs.keio.jp
  redirects an anonymous request into a SAML authentication request against it. The tenant''s OpenID Connect
  discovery document is anonymously readable and advertises authorization, token, userinfo, JWKS and client-registration
  endpoints. The tenant, the users and the applications are Keio''s; the identity service, its contract
  and its engineering are Okta''s, and the discovery document is the one Okta publishes for every org
  — so Okta''s contract is deliberately not saved under this institution. Readable, but not consumable:
  a client_id exists only if Keio IT creates one.'
humanURL: https://keio.okta.com/
baseURL: https://keio.okta.com/.well-known/openid-configuration
tags:
- Single Sign-On
- OpenID Connect
- OAuth
- Identity
- Gated
properties:
- type: Authentication
  url: authentication/keio-authentication.yml
- type: Examples
  url: examples/keio-okta-openid-configuration.json
x-operator: tenant
x-operator-evidence: keio.okta.com is a Keio-specific tenant subdomain on Okta's shared identity platform.
  The issuer, endpoints and document shape are Okta's standard org configuration, identical for every
  customer.
x-operator-note: 'audit-university-contracts.py returns `federation` for this host, because its rule reads
  any identity host as a federation carrying the institution''s own IdP. `tenant` is kept deliberately
  as the more precise verdict: an Okta org is a commercial platform tenancy, not a national or interfederation
  registry, and Keio''s actual federated identity lives in the separate keio:gakunin-idp entry. Both verdicts
  agree the relationship is real and must never be deleted; only the label differs.'
x-access: gated
x-status: 200 on both the org and default authorization-server discovery documents (probed 2026-09-01)