Help a buyer see the public evidence behind a product's ethical claims.
Tech partner

Certifications are confusing, greenwashing is rampant, and the real story is buried.
Consumers and buyers want to purchase ethically but can't verify supply-chain claims. The evidence exists — in NGO reports, certification databases, and news coverage — but no shopper can assemble it at the moment of decision.



Sep 1 26’
Challenge start
Build (31 days left)
Oct 1 26’
Deadline & Winners
What to build
Your Mission
Build an AI-powered solution that shows a buyer the public evidence behind a product's ethical claims at the moment of decision.
Your solution should assemble a sourced evidence trail for every claim — each entry linking to its public record — so buyers weigh the evidence themselves rather than trusting a score. How you solve it is up to you. Exa gives you the sourced trail per claim; the rest is yours.
How to build
Master the Challenge.

Scope
What Success Looks Like
There is no single right solution. You could take the problem in many directions — pick a specific user, a clear decision, and make that experience work well.
Tip:
Don't try to solve the whole problem at once. Pick a specific product category, claim type, or buying decision, then make that experience work well.
Support:
Requirements
Technical Challenge
Think about how your solution will assemble the public evidence around a brand's supply-chain claims — finding suppliers, cross-referencing NGO reports, certification databases, and news coverage — enrich the trail with audit dates and documented findings, link every entry to its public record, and present evidence without collapsing it into an opaque score. These are opportunities to explore, not requirements you need to satisfy all at once.
Tip:
Your solution doesn’t need to be production-ready. We welcome everything from early prototypes to fully working implementations and ambitious technical explorations.
Support:


Use of tech
Recommended Tools
Exa provides a web retrieval layer that might be useful here. Exa Websets can assemble the public evidence around a brand's supply-chain claims: suppliers found via the `company` index, cross-referenced against NGO reports, certification databases, and news coverage, enriched with audit dates and documented findings. Whether Exa fits your solution is up to you.
Tip:
Whether or not you use Exa in your solution is entirely up to you.
Resources:
- Exa API / SDK to getting started
- Exa documentation for search and retrieval
- Examples and implementation patterns
- Exa.ai
Discord channel for technical questions
Meet your mentors
Get a guidance from industry professionals.





Gain invaluable insights and support from seasoned experts who are passionate about driving positive change. Our mentors bring years of experience in tackling complex challenges, ready to share their knowledge and help you make a meaningful impact.
Sep 1 26’
Challenge start
Build (31 days left)
Oct 1 26’
Deadline & Winners
Jury Panel
Put your solution in front of hiring managers.
Receive valuable feedback and insights from hiring managers and industry experts.





Community recognition
Winner
The winning project will be featured on Drawerrr’s Winners page and receive support, and exposure to take the idea further.
Community recognition
Finalists
The two finalist projects will be featured on Drawerrr’s Finalists page and receive support to continue developing their ideas.
If you choose Exa as part of your tech stack, the winner and two finalists will receive Exa.ai credits, exposure through Exa’s developer community, and technical support to help develop their projects further.
Sep 1 26’
Challenge start
Build (31 days left)
Oct 1 26’
Deadline & Winners
FAQ
Everything you need to know about participating.
Who can participate?
Is there a participation fee?
How to get started?
- Create an account.
- Choose a challenge you would like to work on.
- Follow guides to solve the problem (solo or in a team).
- Submit your solution.
- Get the feedback from sustainability experts and results at the beginning of the each month.
Is there any deadlines?
Can I participate as part of a team?
How to obtain assistance from mentors?
Who will be evaluating submissions?
Are there any awards for the winners?
Can participants apply multiple times?
What happens after the challenge?
After challenge
Take it to the next level.
The Challenge graduates get the opportunity to connect with grant providers and organizations looking to pilot projects and take them to the next level.


