Webhooks add-on adds new triggers and actions to let’s you send and receive data from webhooks.
You can send and receive data from anywhere, from external applications, Zapier, Integromat or, included, from another site with this add-on installed.
Any website, application or service with support to webhooks or with a Rest API can be connected with this add-on and, in consequence, with your WordPress site!
Webhooks add-on includes new triggers and actions that you can find their documentation here:
Also, you can check the automations samples page where you can see some samples of the possibilities of this add-on.