How to use the TourneyRadar API in C#

Upcoming chess tournaments from 140+ national federations worldwide. This guide calls it from C# with code we've run against the live endpoint.

Online · 865 msEndpoint tested Oct 24, 2026

1. What you need

.NET 6 or newer. Paste into a top-level `Program.cs` and run `dotnet run`.

No API key or sign-up. Endpoint: https://tourneyradar-api.vercel.app

2. Make the request

using System.Net.Http;

using var http = new HttpClient { Timeout = TimeSpan.FromSeconds(10) };
var json = await http.GetStringAsync("https://tourneyradar-api.vercel.app");
Console.WriteLine(json);

3. The response

Trimmed from the live response on Oct 24, 2026.

JSON

{
  "name": "TourneyRadar API",
  "version": "1.0.0",
  "repository": "https://github.com/AnayDhawan/tourneyradar-api",
  "docs": "/docs",
  "openapi": "/openapi.json",
  "endpoints": [
    "GET /v1/tournaments",
    "GET /v1/tournaments/:id",
    "GET /v1/countries"
  ]
}

4. Before you ship

Set a timeout and handle non-200 responses: free APIs can rate-limit or go down.
Cache responses where you can, instead of calling the API on every page view.
Read the official documentation ↗ for rate limits and terms of use.

FAQ

Does the TourneyRadar API need an API key in C#?

No. The TourneyRadar API works without an API key, so the C# example runs as-is.

Can I call the TourneyRadar API from the browser?

Yes. It sends CORS headers, so front-end JavaScript can call it directly.

What does the TourneyRadar API return?

JSON. The example response on this page is trimmed from a real response our health check received on Oct 24, 2026.

Same API in: Python · JavaScript · Node.js · PHP · Java · Go · Ruby
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