C#

The C# SDK is the generated client at sdks/csharp/api (reserved as OuraToolkit.Api on NuGet) plus the OuraToolkit.Auth companion. The client multi-targets modern .NET and netstandard2.0.

Consume from source

Not yet published to NuGet. Build it from the repository for now, and supply your own access token until the companion is published.

Usage sketch

The client is auth-agnostic — configure the base URL and your Bearer token, then call the generated operation for daily sleep:

using OuraToolkit.Api;
using OuraToolkit.Client;

var config = new Configuration
{
    BasePath = "https://api.ouraring.com",
    AccessToken = Environment.GetEnvironmentVariable("OURA_ACCESS_TOKEN"),
};

var api = new DefaultApi(config);
var sleep = api.DailySleep("2026-06-01", "2026-06-07");
foreach (var day in sleep.Data) Console.WriteLine($"{day.Day} {day.Score}");

The exact class and method names come from the generated client — see the API reference. Generated code is marked generated; regenerate from the spec rather than editing it.