# UCM SAML 2.0 Identity Provider (RedIRIS SIR / eduGAIN)

**Canonical:** https://apis.io/apis/complutense-university-of-madrid/identity-federation/  
**Provider:** Complutense University of Madrid — https://apis.io/providers/complutense-university-of-madrid/  
**Base URL:** https://www.rediris.es/sir/ucmidp  
**Documentation:** https://www.rediris.es/sir/

UCM SAML 2.0 Identity Provider (RedIRIS SIR / eduGAIN) is one of 6 APIs that [Complutense University of Madrid](https://apis.io/providers/complutense-university-of-madrid/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Identity Federation, SAML, eduGAIN, and Single Sign-On. The published artifact set on APIs.io includes API documentation.

UCM's institutional single sign-on, registered in eduGAIN through RedIRIS SIR, the Spanish national research and education federation. entityID https://www.rediris.es/sir/ucmidp, role IDPSSODescriptor, shibmd:Scope ucm.es, Sirtfi asserted, first seen in eduGAIN 2017-04-13. Probed 2026-08-30: the entityID returns HTTP 200 text/xml, 10279 bytes of SAML 2.0 metadata with SSOService and SingleLogoutService at https://sir.rediris.es/ucm/saml2/idp/. Operator is tenant, not institution — the IdP runs on RedIRIS infrastructure under a UCM-specific /ucm/ path — but the entity, the scope and the user population are UCM's.

## Machine-readable artifacts (1)

- **Documentation** — https://www.rediris.es/sir/

## Other Complutense University of Madrid APIs (5)

- [Docta Complutense Repository API (DSpace 7)](https://apis.io/apis/complutense-university-of-madrid/docta-complutense/)
- [Docta Complutense OAI-PMH Endpoint](https://apis.io/apis/complutense-university-of-madrid/docta-oai-pmh/)
- [UniversiDATA DataStore API](https://apis.io/apis/complutense-university-of-madrid/universidata-datastore/)
- [UniversiDATA CKAN Dataset API](https://apis.io/apis/complutense-university-of-madrid/universidata-ckan/)
- [UniversiDATA DCAT Catalog API](https://apis.io/apis/complutense-university-of-madrid/universidata-dcat/)

## Tags

Identity Federation, SAML, eduGAIN, Single Sign-On

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