using System;

using System.Collections.Generic;

using System.Linq;

using Newtonsoft.Json.Linq;

public class Program

{

    public static void Main()

    {

        string json = @"

            {

              ""meta"": {

                ""href"": ""http://localhost:54398/""

              },

              ""busPartner"": {

                ""href"": ""http://localhost:54398/BusPartner"",

                ""rel"": [

                  ""collection""

                ]

              },

              ""busPartnerType"": {

                ""href"": ""http://localhost:54398/BusPartnerType"",

                ""rel"": [

                  ""collection""

                ]

              },

              ""busPartnerPossAttrib"": {

                ""href"": ""http://localhost:54398/BusPartnerPossAttribs"",

                ""rel"": [

                  ""collection""

                ]

              }

            }";

        List<string> tt = JObject.Parse(json)

            .Descendants()

            .OfType<JProperty>()

            .Where(jp => jp.Name == "href" && jp.Value.Type == JTokenType.String)

            .Select(jp => (string)jp.Value)

            .ToList();

        Console.Write(string.Join(Environment.NewLine, tt));

    }

}

​