# Penn State Identity Federation (InCommon / Shibboleth)

**Canonical:** https://apis.io/apis/pennsylvania-state-university/identity-federation/  
**Provider:** Pennsylvania State University — https://apis.io/providers/pennsylvania-state-university/  
**Base URL:** https://as1.fim.psu.edu/idp  
**Documentation:** https://as1.fim.psu.edu/idp/shibboleth

Penn State Identity Federation (InCommon / Shibboleth) is one of 9 APIs that [Pennsylvania State University](https://apis.io/providers/pennsylvania-state-university/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Identity Federation, Shibboleth, SAML, InCommon, and Single Sign-On. The published artifact set on APIs.io includes authentication docs.

Penn State operates its own Shibboleth identity provider and registers it in the InCommon federation under entityID urn:mace:incommon:psu.edu. Penn State SERVES ITS OWN SAML metadata at https://as1.fim.psu.edu/idp/shibboleth (200 application/xml, 9,398 bytes) — IDPSSODescriptor plus SPSSODescriptor, shibmd:Scope psu.edu, OrganizationName "The Pennsylvania State University", speaking Shibboleth 1.0, SAML 1.1 and SAML 2.0 over HTTP-Redirect, POST and SOAP ECP. InCommon republishes that same document at mdq.incommon.org; the republication is the federation's, the IdP is Penn State's. This is the machine-readable surface behind every WebAccess-gated Penn State service, and it is the reason most of the institution's REST estate is unreadable from outside.

## Machine-readable artifacts (4)

- **x-metadata** — https://as1.fim.psu.edu/idp/shibboleth
- **x-federation-registration** — https://mdq.incommon.org/entities/urn%3Amace%3Aincommon%3Apsu.edu
- **Authentication** — https://raw.githubusercontent.com/api-evangelist/pennsylvania-state-university/refs/heads/main/authentication/pennsylvania-state-university-authentication.yml
- **Conformance** — https://raw.githubusercontent.com/api-evangelist/pennsylvania-state-university/refs/heads/main/conformance/pennsylvania-state-university-conformance.yml

## Other Pennsylvania State University APIs (8)

- [Researcher Metadata Database (RMD) API](https://apis.io/apis/pennsylvania-state-university/rmd/)
- [ScholarSphere API](https://apis.io/apis/pennsylvania-state-university/scholarsphere/)
- [ETDA OAI-PMH Provider](https://apis.io/apis/pennsylvania-state-university/etda-oai-pmh/)
- [Pennsylvania State University Buildings API](https://apis.io/apis/pennsylvania-state-university/pennsylvania-state-university-buildings-api/)
- [Pennsylvania State University Campuses API](https://apis.io/apis/pennsylvania-state-university/pennsylvania-state-university-campuses-api/)
- [Pennsylvania State University Events API](https://apis.io/apis/pennsylvania-state-university/pennsylvania-state-university-events-api/)
- [Pennsylvania State University Health API](https://apis.io/apis/pennsylvania-state-university/pennsylvania-state-university-health-api/)
- [Pennsylvania State University Rooms API](https://apis.io/apis/pennsylvania-state-university/pennsylvania-state-university-rooms-api/)

## Tags

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

---

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