2020 Call for Code Prize

Winners of the Grand Prize receive $200,000 USD cash and open source deployment support through Code and Response™ with The Linux Foundation.

Answer the call. Take on climate change.

In a recent global IBM survey of more than 3,000 developers, first responders, and social activists, 77% agree that climate change is the single most pressing issue of our time. In the same survey, 79% of respondents agree that climate change is something that can be reduced or combatted with technology.

Innovate with the latest technology to address energy sustainability, water sustainability, or disaster resiliency. Winning solutions are deployed in communities that need the most help.

Explore resources

Get started for free with real code examples

Create an application that makes an immediate and lasting impact in communities around the world by using AI, IoT, data science, and the latest IBM Cloud™ open source development platforms. 

Start coding

Four easy steps to get involved

Roadmap Icon

Accept the challenge

Learn about the competition, see what you can win, and start coding with a free IBM Cloud account.

Roadmap Icon

Build with open tech

Learn about the impact of climate change and use resources like code patterns, expert videos, and tutorials to build your idea.

Roadmap Icon

Find your squad

Whether you need to find teammates, meet experts, ask questions, or share ideas - there’s a community for you.

Roadmap Icon

Submit your idea

Tell us what you’ve built and how. Submit your idea and your code for a chance to win $200k USD. Submissions open on March 22, 2020 and will close on July 31, 2020.

Winning solutions get deployed

Project Owl

The Grand Prize winners of the inaugural 2018 Call for Code Global Challenge designed solar-powered mesh network devices that build connectivity where there is none. The team brought their devices in a field test to parts of Puerto Rico hit hardest by Hurricane Maria.

Read more 

Prometeo

The Grand Prize winners of the 2019 Call for Code Global Challenge beat out nearly 180,000 participants with their solution. The Barcelona-based team, which includes first responders, developed a Watson-based AI solution designed to monitor health and safety in firefighters, both long term and in real-time.

Read more 

"The climate crisis is caused by us - and the solutions must come from us. We have the tools: technology is on our side"

– UN Secretary-General António Guterres


The 2020 Call for Code Global Challenge is aligned with the United Nations and the launch for its 75th anniversary of a global conversation on urgent issues such as the climate crisis. Call for Code is a multi-year initiative created in 2018 by the David Clark Cause with founding partner IBM.

Call for Code in the news

Have questions about the challenge? Visit the Call for Code program page to view frequently asked questions.