# Get the Validity of a Property in ksqlDB for Confluent Platform The `/is_valid_property` resource tells you whether a property is prohibited from setting. You can use the `curl` command to query the `/is_valid_property` endpoint: ```bash curl -sX GET "http://localhost:8088/is_valid_property/propertyName" | jq '.' ``` If the property is not prohibited from setting, the endpoint returns `true`. Otherwise, the output resembles: ```json { "@type": "generic_error", "error_code": 40000, "message": "One or more properties overrides set locally are prohibited by the KSQL server (use UNSET to reset their default value): [ksql.service.id]" } ```