Guzzel returning 404 error

You're not hitting an endpoint in the api. Your hitting the base url of the api.

$url = "https://user:[email protected]/v1/tournaments.json";

See the docs: https://api.challonge.com/v1/

@Cronix ive appended test to the end of the url but it seems to have not changed

see my updated reply. Your route doesn't matter since you're accessing an external api.

Docs for creating a tournament show

POST https://api.challonge.com/v1/tournaments.{json|xml} 

https://api.challonge.com/v1/documents/tournaments/create

Thanks @Cronix, unfortunately when updating the URL and the controller to accommodate for the following error I am presented with a 406 error. When referencing the API this error means. I was wondering if you could take a look at my controller below

406 - Requested format is not supported - request JSON or XML only

controller

        $client = new \GuzzleHttp\Client();
        $url = "https://UserName:[email protected]/v1/tournaments.{json|xml}";
        $params = array(
            "tournament[name]" => "My Tourney",
            "tournament[tournament_type]" => "single elimination",
            "tournament[url]" => "my_toruney",
            "tournament[description]" => "Challonge is <strong>AWESOME</strong>"
            );
        $data = json_encode($params);
        $request = $client->post($url,array(
                      'content-type' => 'application/json'));
        $request->setBody($data); #set body!
        $response = $request->send();

Yes, look at the url I wrote in my first post.

$url = "https://UserName:[email protected]/v1/tournaments.json";

When the docs show {json|xml} here

POST https://api.challonge.com/v1/tournaments.{json|xml} 

it means it should be .json OR .xml, not the whole thing literally

@Cronix hey man sorry to keep asking you but could you look at this final error for me.

`422 Unprocessable Entity` response: {"errors":["Tournament parameters are required"]}
``

I know that it means the format is incorrect but whenever I return it to the view it seems to be in the same format as in the API docs.

    $params = array(
        "tournament[name]" => "My Tourney",
        "tournament[tournament_type]" => "single elimination",
        "tournament[url]" => "my_toruney",
        "description" => "Challonge is <strong>AWESOME</strong>"
        );
        $request = $client->post($url,array(
                  'content-type' => 'application/json',
                  'tournament' => json_encode($params)
          ),array());
  $response = $request->send();