Andr&eacute; Boekhorst

This plugin combines the two of the best WordPress plugins: <a href="https://wordpress.org/plugins/advanced-custom-fields/" title="Advanced Custom Fields" rel="ugc">Advanced Custom Fields</a> and <a href="https://wordpress.org/plugins/json-rest-api/" title="WP REST API" rel="ugc">WP REST API</a>.
This plugin is based on the work from<a href="https://github.com/PanManAms/WP-JSON-API-ACF" title="Panman on Github" rel="nofollow ugc">Panman on Github</a>. He was right when he said it would be better as plugin, but it would be even better if it would be available through the WordPress Plugin Repository.
An addition made to this plugin is that each ACF Field van be filtered throug the hook: JSON_META_ACFFIELDNAME (where ACFFIELDNAME depends on the fieldname you’ve added in the Advanced Custom Fields backend.)

WP REST API Custom Fields

The plugin is installed but nothing is in the output of API

JUst does not work

Shows Advanced Custom Field output to the WP REST API for posts, pages, taxonomies and users.

Make

<a href="https://www.make.com/en?utm_source=wordpress&utm_medium=partner&utm_campaign=wordpress-partner-make" rel="nofollow ugc">Make</a> is a visual platform that lets you design, build, and automate anything – from simple tasks to complex workflows – in minutes. With Make, you can send information between WordPress and thousands of apps to drive traffic and improve sales potential. It’s fast and easy to use, visually intuitive and requires zero coding expertise.
Here are some of the ways to use WordPress with Make:
<ul>
<li>Add new WordPress users to your CMR and marketing tools, like Salesforce, ActiveCampaign, or Mailchimp</li>
<li>Create new WordPress posts from incoming webhook data, Google Forms responses, or FreeScout conversations</li>
<li>Share your WordPress posts on Facebook, Pinterest, or other social media platforms</li>
<li>Send a message about new WordPress posts to messaging apps, like Slack, Telegram, or Microsoft Teams</li>
<li>Create database items from your WordPress posts in Notion, MySQL, or any other database app</li>
<li>Or choose a <a href="https://www.make.com/en/templates?utm_source=wordpress&utm_medium=partner&utm_campaign=wordpress-partner-program" rel="nofollow ugc">template</a> to help you get started. </li>
</ul>
How to get started:
<ul>
<li><a href="https://www.make.com/en/register?utm_source=wordpress&utm_medium=partner&utm_campaign=wordpress-partner-program" rel="nofollow ugc">Sign up for Make</a>, and enjoy a free account forever. Or, choose a monthly or yearly plan with advanced features.</li>
<li>Check <a href="https://www.make.com/en/help/apps/website-building/wordpress#connecting-wordpress-to-make-968742?utm_source=wordpress&utm_medium=partner&utm_campaign=wordpress-partner-program" rel="nofollow ugc">Make’s documentation on how to connect WordPress</a>. </li>
<li>Install the plugin, and <a href="https://www.make.com/en/integrations/wordpress?utm_source=wordpress&utm_medium=partner&utm_campaign=wordpress-partner-program" rel="nofollow ugc">start building WordPress integrations on Make</a>.</li>
</ul>
Get help from <a href="https://www.make.com/en/ticket?utm_source=wordpress&utm_medium=partner&utm_campaign=wordpress-partner-program" rel="nofollow ugc">Make’s Support</a> team. 
Make’s <a href="https://www.make.com/en/terms-and-conditions?utm_source=wordpress&utm_medium=partner&utm_campaign=wordpress-partner-make" rel="nofollow ugc">Terms of use</a> and <a href="https://www.make.com/en/privacy-notice?utm_source=wordpress&utm_medium=partner&utm_campaign=wordpress-partner-make" rel="nofollow ugc">Privacy policy</a>.

Make Connector

Make Connector. Make lets you design, build, and automate by connecting with WordPress in just a few clicks.

WP REST API Custom Fields vs Make Connector