forgejo/templates/user/auth/oidc_wellknown.tmpl

{
    "issuer": "{{AppUrl | JSEscape | Safe}}",
    "authorization_endpoint": "{{AppUrl | JSEscape | Safe}}login/oauth/authorize",
    "token_endpoint": "{{AppUrl | JSEscape | Safe}}login/oauth/access_token",
    "userinfo_endpoint": "{{AppUrl | JSEscape | Safe}}login/oauth/userinfo",
    "response_types_supported": [
        "code",
        "id_token"
    ],
    "scopes_supported": [
        "openid",
        "profile",
        "email"
    ],
    "claims_supported": [
        "aud",
        "exp",
        "iat",
        "iss",
        "sub",
        "name",
        "preferred_username",
        "profile",
        "picture",
        "website",
        "locale",
        "updated_at",
        "email",
        "email_verified"
    ],
    "code_challenge_methods_supported": [
        "plain",
        "S256"
    ],
    "grant_types_supported": [
        "authorization_code",
        "refresh_token"
    ]
}