<PackageReference Include="Newtonsoft.Json" Version="13.0.3" />

Newtonsoft.Json.JsonValidatingReader

Represents a reader that provides JsonSchema validation.

JSON Schema validation has been moved to its own package. See https://www.newtonsoft.com/jsonschema for more details.
namespace Newtonsoft.Json { public class JsonValidatingReader : JsonReader, IJsonLineInfo { public JsonSchema Schema { get; set; } public JsonReader Reader { get; } public event ValidationEventHandler ValidationEventHandler; public JsonValidatingReader(JsonReader reader); } }