IBM Cloud Functions is a serverless computing platform that allows developers to run code in response to events without managing servers. It automatically scales based on demand, meaning you only pay for the resources you use when your code is executed. This makes it ideal for applications that require quick responses to varying workloads. With IBM Cloud Functions, you can create functions in various programming languages, such as JavaScript, Python, and Java. These functions can be triggered by events from other IBM Cloud services or external sources, enabling seamless integration and automation of tasks across different applications and services.