# CARSI / eduGAIN Federation Registration (entity 671640)

**Canonical:** https://apis.io/apis/tianjin/carsi-edugain/  
**Provider:** Tianjin University — https://apis.io/providers/tianjin/  
**Base URL:** https://technical.edugain.org/api.php?action=list_entities&format=json&fed_id=CARSI  
**Documentation:** https://www.carsi.edu.cn/

CARSI / eduGAIN Federation Registration (entity 671640) is one of 6 APIs that [Tianjin University](https://apis.io/providers/tianjin/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Identity Federation, eduGAIN, CARSI, SAML, and Registry.

The same identity provider seen from the federation side. Tianjin University's IdP is registered in CARSI — the CERNET Authentication and Resource Sharing Infrastructure, registration authority https://www.carsi.edu.cn, an eduGAIN member federation since May 2019 and in production since June 2019 — as eduGAIN entity 671640, first seen 2019-10-31, scope idp.tju.edu.cn, with both IDPSSODescriptor and AttributeAuthorityDescriptor roles and display names "Tianjin University" / 天津大学(Tianjin University). This is what makes the IdP usable for federated access to licensed library and publisher resources. Disambiguated against two same-city lookalikes registered in the same federation: idp.tjufe.edu.cn is Tianjin University of Finance and Economics and idp.tjut.edu.cn is Tianjin University of Technology; neither is recorded here.

## Machine-readable artifacts (3)

- **IdentityFederation** — https://raw.githubusercontent.com/api-evangelist/tianjin/refs/heads/main/identity-federation/tianjin-identity-federation.yml
- **Registry** — https://technical.edugain.org/api.php?action=list_entities&format=json&fed_id=CARSI
- **Conformance** — https://raw.githubusercontent.com/api-evangelist/tianjin/refs/heads/main/conformance/tianjin-conformance.yml

## Other Tianjin University APIs (5)

- [Tianjin University Shibboleth Identity Provider (SAML 2.0 metadata)](https://apis.io/apis/tianjin/shibboleth-idp/)
- [Crossref Membership (member 34483, prefix 10.55582)](https://apis.io/apis/tianjin/crossref/)
- [ROR Registration (https://ror.org/012tb2g32)](https://apis.io/apis/tianjin/ror/)
- [TJU Library Unified Discovery (统一检索)](https://apis.io/apis/tianjin/library-discovery/)
- [Campus-Network-Gated Systems (repository, OPAC, portal)](https://apis.io/apis/tianjin/campus-gated-systems/)

## Tags

Identity Federation, eduGAIN, CARSI, SAML, Registry

---

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