The article is a step-by-step guide to building a WhatsApp chatbot using the Twilio WhatsApp API, PHP, and Laravel. The chatbot allows users to get information about a developer's GitHub profile using their username. To build the chatbot, one needs to have basic knowledge of Laravel, install the necessary packages, set up a Twilio account, and obtain a WhatsApp-enabled Twilio number. The chatbot is built using a controller that processes incoming messages, makes HTTP requests to the GitHub API, and sends responses back to the user via WhatsApp. The article also covers setting up a webhook, exposing the application to the internet, testing the chatbot, and provides resources for further learning.