This endpoint returns a JSON-formatted response containing configuration metadata in terms of key properties of the OIDC Provider. Among other things this endpoint is used to prepare for token validation (add reference).

Below is an example response from /openid-configuration for the OIDC Provider in its BankID configuration in pre-production:

{
"issuer":"https://preprod.bankidapis.no",
"authorization_endpoint":"https://preprod.bankidapis.no/oidc/oauth/authorize",
"token_endpoint":"https://preprod.bankidapis.no/oidc/oauth/token",
"userinfo_endpoint":"https://preprod.bankidapis.no/oidc/oauth/userinfo",
"jwks_uri":"https://preprod.bankidapis.no/oidc/oauth/userinfo/jwk",
"scopes_supported":[
"standard_bankid", "address", "phone",
"nnin", "openid", "profile",
"email"
],
"response_types_supported":[
"code", "token", "id_token",
"id_token token", "code token", "code id_token",
"code id_token token"
],
"response_modes_supported":[
"query", "fragment", "form_post"
],
"grant_types_supported":[
"authorization_code"
],
"subject_types_supported":[
"public"
],
"id_token_signing_alg_values_supported":[
"RS256"
],
"userinfo_signing_alg_values_supported":[
"RS256", "none"
],
"token_endpoint_auth_methods_supported":[
"client_secret_post", "client_secret_basic"
],
"claim_types_supported":[
"normal"],
"claims_supported":[
"preferred_username", "name", "sub",
"iat", "iss", "auth_time",
"exp", "birthdate", "nonce",
"amr", "azp", "bid_code",
"aud", "at_hash", "c_hash",
"nnin", "address", "phone"
],
"claims_parameter_supported":false,
"ui_locales_supported":[
"no",
"en"
],
"login_hint_supported":"[BIM|BID][:\\d{11}][:\\d{8}][:\\d{6}] for respectively client_type, nnin, phoneNo, birthday",
"serverVersion":"bankid-oauth-api 1.2.0"
}