In this chapter, we will be sending employees text (SMS) messages using a communication API called Twilio. 

Twilio is a cloud-based service that enables you to make calls and send and receive texts programmatically. It provides a modern cloud communications platform that your applications can leverage quickly and easily. The key capabilities of the platform are as follows:

• Voice: You can use APIs to call landlines and mobile devices from your web and mobile applications.
• Text/SMS: You can send and receive SMS and MMS from your web and mobile applications.
• Video: You can embed video collaboration into your web and mobile applications.

You may have most likely used Twilio when using apps such as Uber, Airbnb, Netflix, and so on. These apps use Twilio to send you notifications over text or phone. It enables communication for more than 40,000 businesses around the world.

We will be using the Twilio API to send mass text (SMS) messages to employees. 

Now, let's take a look at the automation components and complete the project.