nib Identity (OpenID Connect)
The Auth0-backed OpenID Connect tenant behind nib member sign-in, issuer https://id.nib.com.au/. It is the only nib API surface with anonymously readable, machine-readable metadata: the OIDC discovery document, the RFC 8414 authorization-server metadata and the JWKS all return HTTP 200 without credentials, and the protected endpoints (/userinfo, /oauth/token) return 401 to anonymous callers. It supports authorization code with PKCE (S256), client credentials, device code, token exchange, JWT bearer, refresh, implicit and password grants, plus DPoP (ES256), CIBA backchannel authentication, backchannel logout and dynamic client registration. This is CONSUMER SIGN-IN identity, not a product API — it publishes only the 14 standard OIDC/Auth0 identity scopes and no policy, claims, quote, member-data or partner scopes. nib's actual product APIs sit behind api-gateway.nib.com.au, which returns 403 to every anonymous request and publishes nothing. A sibling tenant serves nib New Zealand at https://id.nib.co.nz/.