{"issuer":"https://mcp.12andus.com","authorization_endpoint":"https://mcp.12andus.com/oauth/authorize","token_endpoint":"https://mcp.12andus.com/oauth/token","registration_endpoint":"https://mcp.12andus.com/oauth/register","userinfo_endpoint":"https://www.googleapis.com/oauth2/v3/userinfo","jwks_uri":"https://www.googleapis.com/oauth2/v3/certs","scopes_supported":["openid","email","profile"],"response_types_supported":["code"],"grant_types_supported":["authorization_code","refresh_token"],"subject_types_supported":["public"],"id_token_signing_alg_values_supported":["RS256"],"token_endpoint_auth_methods_supported":["client_secret_post","client_secret_basic","none"],"code_challenge_methods_supported":["S256"]}