A WhatsApp Currency Conversion Bot was built using Laravel and Twilio's API for WhatsApp. The bot can convert multiple currencies, including USD to NGN. To set up the bot, a new Laravel project was created using Composer, and the Twilio SDK library was installed. An API key from Currency Converter was obtained, and a wrapper class called `CurrencyConverterClient` was created to interact with the Currency Converter API. A database table was created to store currency data, and a seeder was used to populate the table with supported currencies. The bot's logic is implemented in the `BotController` class, which determines the response based on the user's input. A webhook endpoint was added to the routes, CSRF verification was disabled for the endpoint, and Ngrok was used to expose the application to the internet. Finally, the WhatsApp Sandbox was enabled, and the bot was tested. The project is now available in a GitHub repository.