A recent project of mine has been ContribKanban.com for the Drupal community. The name speaks for itself - it provides a way for contributors to work on Drupal.org project issues queues through a kanban board. This app has two purposes: visualize the Drupal.org project issue queues in a useful fashion, and provide an experiment that tries to fully utilize Drupal.org APIs.
Enabling RESTful web service interfaces in Drupal 8 mglaman Thu, 04/26/2018 - 04:00
Drupal 8 ships with the RESTful Web Services module which allows you to expose various API endpoints for interacting with your Drupal site. While the community is making a push for the JSON API module, I have found the core' RESTful module to be pretty useful when I have custom endpoints or need to implement Remote Procedure Calls (RPC) endpoints. However, using the module and enabling endpoints is a bit rough. So, let's cover that! Also note, this blog covers the content from the introduction of the Web Services chapter from the Drupal 8 Development Cookbook.
I've been hard at work in the labs revamping the Facebook Album plugin for WordPress. Very soon you will be able to use a Facebook application to authenticate with the Facebook API.
Google+ has released a rough outline on their API for accessing data. The Google+ API only allows for read-access to data, but this will still allow you to integrate a visitors social features around Google+.