What is IBM Cloud Functions?

Based on Apache OpenWhisk, IBM Cloud Functions is a polyglot functions-as-a-service (FaaS) programming platform for developing lightweight code that scalably executes on demand.

Introduction to IBM Cloud Functions using Apache OpenWhisk

IBM Cloud Functions features

Explore an open-ended ecosystem

IBM Cloud Functions provides access to the Apache OpenWhisk ecosystem in which anyone can contribute their action code as building blocks to the expanding repository.

Speed and simplify development

IBM Cloud Functions accelerates application development, which enables developers to quickly build apps with action sequences that execute in response to our event-driven world.

Leverage the benefits of cognitive services

IBM Cloud Functions, by offering easy access to IBM Watson® APIs within the event-trigger-action workflow, makes cognitive analysis of application data inherent to your workflows.

Pay for what you actually use

It’s simple: pay for actual use rather than pre-allocated capacity. Costs increase only as you construct more OpenWhisk-intensive solutions or as existing solutions scale to support bigger loads.

How customers use it

Serverless web application and API

In this tutorial, you will create a serverless web application by hosting static website content on GitHub pages and implementing the application backend using Functions on IBM Cloud.

Go to tutorial

Serverless web application and API

Mobile application with a serverless back end

In this tutorial you will learn how to use IBM Cloud Functions, along with cognitive and data services to build a serverless back end for a mobile application.

Go to the tutorial

Graphic illustrating how IBM Push Notifications can help create a mobile application with a serverless back end.

Make video searchable

Using IBM Cloud Functions in combination with IBM Cloudant® and Watson Visual Recognition, you can create an efficient, serverless architecture to search video content.

Make video searchable

Customer success stories

Dive into the technology

Serverless Computing


Discover how the serverless programming model is a simpler, more cost-effective way of building and operating applications in the cloud.


Function-as-a-Service (FaaS)

An introduction to FaaS—how it makes it easier for cloud application developers to run and manage microservices applications.

Cloud Computing

Cloud Computing Services from IBM

The broadest portfolio of secure compute choices: Bare metal, Virtual Private Cloud, virtual servers, containers, and serverless resources

Get started on IBM Cloud Functions in minutes