{"issuer": "https://goshippo.com", "authorization_endpoint": "https://goshippo.com/oauth/authorize", "token_endpoint": "https://goshippo.com/oauth/access_token", "registration_endpoint": "https://goshippo.com/oauth/clients", "response_types_supported": ["code"], "grant_types_supported": ["authorization_code"], "scopes_supported": ["*"], "token_endpoint_auth_methods_supported": ["none"], "code_challenge_methods_supported": ["S256"]}