ModelsApiErrorStandard error envelopeCopy MarkdownOpenSchema FieldTypeDescriptionerror.codestringStable machine-readable codeerror.messagestringHuman-readable summaryrequest_idstringRequest trace identifier Example { "error": { "code": "rate_limited", "message": "Retry after 2 seconds" }, "request_id": "req_123" }WalletActionWallet transfer request and response shapesErrors and Rate LimitsError format and retry strategy for bot APIs