# CityUHK Shibboleth Identity Provider

**Canonical:** https://apis.io/apis/cityu/shibboleth-idp/  
**Provider:** City University of Hong Kong — https://apis.io/providers/cityu/  
**Base URL:** https://idp2.cityu.edu.hk/idp  
**Documentation:** https://idp2.cityu.edu.hk/idp/shibboleth

CityUHK Shibboleth Identity Provider is one of 5 APIs that [City University of Hong Kong](https://apis.io/providers/cityu/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Identity Federation, SAML, Shibboleth, eduGAIN, and Single Sign-On. The published artifact set on APIs.io includes authentication docs and API documentation.

CityUHK's own SAML 2.0 Identity Provider, running Shibboleth on the university's own host and publishing live IdP metadata with both an IDPSSODescriptor and an AttributeAuthorityDescriptor. Registered in eduGAIN via the Hong Kong Access Federation (HKAF, registration authority https://hkaf.edu.hk) under the display name "City University of Hong Kong". This is the one machine-readable contract in this profile that CityUHK operates itself rather than tenants.

## Machine-readable artifacts (4)

- **x-saml-metadata** — https://raw.githubusercontent.com/api-evangelist/cityu/refs/heads/main/authentication/cityu-shibboleth-idp-metadata.xml
- **Authentication** — https://raw.githubusercontent.com/api-evangelist/cityu/refs/heads/main/authentication/cityu-authentication.yml
- **x-conformance** — https://raw.githubusercontent.com/api-evangelist/cityu/refs/heads/main/conformance/cityu-education-standards-conformance.yml
- **Documentation** — https://www.hkaf.edu.hk/

## Other City University of Hong Kong APIs (4)

- [CityUHK Scholars OAI-PMH](https://apis.io/apis/cityu/scholars-oai/)
- [CityUHK Scholars Pure Web Service (tenant deployment)](https://apis.io/apis/cityu/scholars-pure-ws/)
- [CityUHK Single Sign-On (OpenID Connect / OAuth 2.0)](https://apis.io/apis/cityu/auth-oidc/)
- [CityUHK Canvas Learning Management System (tenant deployment)](https://apis.io/apis/cityu/canvas/)

## Tags

Identity Federation, SAML, Shibboleth, eduGAIN, Single Sign-On

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