Bots are a handy way to automate simple tasks that you might typically do on your own, such as updating calendar appointments. In this tutorial on Full Stack Python, Matt Makai explains how to build your first chatbot using the Slack API and Python to begin returning simple messages.
The Nexmo SMS API is a service that allows you to send and receive SMS messages anywhere in the world. Nexmo provides REST APIs, but it's easier to use their official Java SDK. This tutorial covers how to send and receive SMS messages with the SDK so that you can use them in your applications.