Gremlin.Net is a cross-platform Gremlin Server driver for .NET that is written in C#. It uses WebSockets to communicate with Gremlin Server.
Install the NuGet package.
var gremlinServer = new GremlinServer("localhost", 8182);
using (var gremlinClient = new GremlinClient(gremlinServer))
{
var result =
await gremlinClient.SubmitWithSingleResultAsync<bool>("g.V().has('name', 'gremlin').hasNext()");
}The API reference can be found here: https://florianhockmann.github.io/Gremlin.Net/api/Gremlin.Net.html