How to get/set Trello custom fields using the API? : <p>I'm already in love with the <a href="https://blog.trello.com/trello-custom-fields/" rel="noreferrer">Custom Fields</a> feature in Trello. Is there a way to get and set custom fields via the API?</p>

<p>I tried using the <a href="https://developers.trello.com/advanced-reference/card#get-1-cards-card-id-or-shortlink-field" rel="noreferrer">get field</a> API call to get a field (on a board with a custom field defined called "MyCustomField"):</p>

<p><code>curl "https://api.trello.com/1/cards/57c473503a5ef0b76fddd0e5/MyCustomField?key=${TRELLO_API_KEY}&amp;token=${TRELLO_OAUTH_TOKEN}"
</code></p>

<p>to no avail. </p>
