ill also return two values: the access token itself and a refresh token. If you save the refresh token you can spare yourself (or the user of your app) the full authorization process, by using <code>(oauth2-get-tokens &lt;refresh token&gt; :refresh t)</code> each time the authorization times out, which it does after 24 hours.</p> <h2 id="documentation">Documentation</h2> <p>Full documentation is <a href="http://nunotrocado.com/freesound/">here</a>.</p> <p>Refer to the <a href="https://freesound.org/docs/api