Elasticsearch.Net is a low level client to talk to Elasticsearch.

Installingedit

From the package manager console inside visual studio

PM> Install-Package Elasticsearch.Net

Or search in the Package Manager UI for Elasticsearch.Net and go from there

Connectingedit

Assumming Elasticsearch is already installed and running on your machine, go to http://localhost:9200 in your browser. You should see a similar response to this:

{
  "status" : 200,
  "name" : "Sin-Eater",
  "version" : {
    "number" : "1.0.0",
    "build_hash" : "a46900e9c72c0a623d71b54016357d5f94c8ea32",
    "build_timestamp" : "2014-02-12T16:18:34Z",
    "build_snapshot" : false,
    "lucene_version" : "4.6"
  },
  "tagline" : "You Know, for Search"
}

To connect to your local node from C# simply:

var client = new ElasticsearchClient();

//index a document under /myindex/mytype/1
var indexResponse = client.Index("myindex","mytype","1", new { Hello = "World" });

Please be sure to read the full documentation on connecting with elasticsearch.net to see all the available options.