Admin APIAPI ReferenceProduct AttributesHidden Attribute ValueAdd a value to a product hidden attributeVersion: X-Cart 5.6.0Add a value to a product hidden attribute POST /api/products/:product_id/attributes_hidden/:attribute_id/values Creates a Hidden Attribute Value resource. Request Responses201400401422500Hidden Attribute Value resource createdInvalid inputUnauthorizedUnprocessable entityInternal error