shib-keygen-api (Shibboleth SP Metadata Tooling)
Open-source utility from the Stockholm University GitHub organization that generates Shibboleth SP/SAML2 metadata X.509 certificates and keys and stores them (e.g. in HashiCorp Vault). Reflects the university's SWAMID/Shibboleth (SAML2) federated identity infrastructure. Source is public on GitHub; this is internal tooling rather than a consumer-facing hosted API.