Waseda Identity Provider (Shibboleth SAML 2.0)
Waseda operates its own Shibboleth SAML 2.0 identity provider. The metadata document is served anonymously as application/xml and declares entityID https://iaidp.ia.waseda.jp/idp/shibboleth, shibmd:Scope waseda.jp, SAML2 Redirect / POST / POST-SimpleSign SSO and SLO endpoints, and SAML1/SAML2 SOAP ArtifactResolution and AttributeQuery on port 8443. This is machine-readable institution-operated identity infrastructure, not a public API — a relying party reaches it by registering a Service Provider in the federation, not by obtaining a key.