# Keio Okta Tenant — OpenID Connect

**Canonical:** https://apis.io/apis/keio/okta/  
**Provider:** Keio University — https://apis.io/providers/keio/  
**Base URL:** https://keio.okta.com/.well-known/openid-configuration  
**Documentation:** https://keio.okta.com/

Keio Okta Tenant — OpenID Connect is one of 9 APIs that [Keio University](https://apis.io/providers/keio/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Single Sign-On, OpenID Connect, OAuth, Identity, and Gated. The published artifact set on APIs.io includes authentication docs.

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.

## Machine-readable artifacts (2)

- **Authentication** — https://raw.githubusercontent.com/api-evangelist/keio/refs/heads/main/authentication/keio-authentication.yml
- **Examples** — https://raw.githubusercontent.com/api-evangelist/keio/refs/heads/main/examples/keio-okta-openid-configuration.json

## Other Keio University APIs (8)

- [KOARA OAI-PMH Metadata API](https://apis.io/apis/keio/koara-oai-pmh/)
- [Keio Media Center Digital Collections IIIF API](https://apis.io/apis/keio/iiif/)
- [Keio University Identity Provider (GakuNin / eduGAIN)](https://apis.io/apis/keio/gakunin-idp/)
- [K-RIS — Keio Research Information System (Elsevier Pure)](https://apis.io/apis/keio/k-ris/)
- [Keio Figshare Research Data Repository](https://apis.io/apis/keio/figshare/)
- [DataCite Membership — provider `keio`](https://apis.io/apis/keio/datacite/)
- [Crossref Memberships — Keio units](https://apis.io/apis/keio/crossref/)
- [ROR Registration — Keio University](https://apis.io/apis/keio/ror/)

## Tags

Single Sign-On, OpenID Connect, OAuth, Identity, Gated

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/keio/okta/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/keio/.