newtonsoft.json by

<PackageReference Include="newtonsoft.json" Version="4.0.1" />

 newtonsoft.json 4.0.1

<package xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <metadata xmlns="http://schemas.microsoft.com/packaging/2010/07/nuspec.xsd">
    <id>Newtonsoft.Json</id>
    <version>4.0.1</version>
    <title>Json.NET</title>
    <authors>James Newton-King</authors>
    <owners>James Newton-King</owners>
    <projectUrl>http://james.newtonking.com/projects/json-net.aspx</projectUrl>
    <requireLicenseAcceptance>false</requireLicenseAcceptance>
    <description>Json.NET is a popular high-performance JSON framework for .NET</description>
    <language>en-US</language>
    <tags>json</tags>
  </metadata>
</package>