Climafi Climate & Fintech
Climafi, a marketplace for climate-impact credits
How we built Climafi, a climate-impact marketplace with purchases recorded on the Cardano blockchain, running on serverless AWS.
- Both sides
- Sellers and buyers
- On the blockchain
- Every purchase recorded
- Serverless
- Runs on AWS Lambda
The idea
It is hard to buy climate impact and feel sure about it. Climafi turns it into a proper marketplace. Sellers list their climate-impact credits, buyers browse and buy them, and every purchase gets written to the blockchain so anyone can check it.
What we built
- A marketplace website (built with React) for listing, browsing, and buying credits.
- A GraphQL API with a MongoDB database, running serverless on AWS Lambda so it costs little when quiet and scales up when busy.
- A link to the Cardano blockchain so purchases and who owns what can be checked and cannot be quietly changed.
- Secure logins handled by a separate service, keeping that part clean and out of the way.
Why it matters
A marketplace like this needs three things at once: it has to be easy to buy on, the data has to be right, and the sale has to be provable. Climafi puts a clean website, a solid backend, and blockchain records together so buyers know their impact is real.