title: What is a Mashape Key?
body: <p>I am doing some tests and I would like to make a successful request using <a href="https://market.mashape.com/omgvamp/hearthstone" rel="nofollow noreferrer">these</a> API.<br>
  I tried to make a request as follows:</p>
  
  <pre><code>response = unirest.get("https://omgvamp-hearthstone- 
  v1.p.mashape.com/cards/Ysera",
    headers={
      "X-Mashape-Key": "&lt;required&gt;",
      "Accept": "application/json"
    }
  )
  </code></pre>
  
  <p>but I get the following:</p>
  
  <pre><code>&gt;&gt;&gt; response.code
  403
  </code></pre>
  
  <p>How can I fulfill my request? What is the X-Mashape-Key field? Why do I need it?</p>