Questy

We enable people in the Worldcoin ecosystem to earn money by completing real-world tasks such as submitting photo evidence with location-based data, answering surveys, or verifying facts like business hours or event authenticity. Quests are posted through a miniapp, and users with a verified World ID can fulfill them, ensuring survey responses come from real, unique humans, not bots or farms. Results are stored on decentralized storage, and payouts are processed onchain. The goal is to create a sustainable loop where real-world data can be sourced trustlessly and cheaply at scale—unlocking use cases in journalism, research, compliance, and more.

We built our system on top of Worldchain as a miniapp using their Minikit SDK. The frontend and backend are built in NextJS. Tasks and responses are stored on decentralized Walrus storage, so collected results are not stored on centralized services and can't be hacked or damaged.

World ID integration allows us to ensure that only real, unique humans can fulfill tasks — making the data trustworthy and resistant to bots, spam, or manipulation.

Our backend handles off-chain logic like validating submissions, confirming user transactions, and triggering on-chain interactions on behalf of the user to provide the best UX. However, our smart contract is built in a way where direct use without our backend is also possible (if the user uploads the data to Walrus themselves).

Fulfillments are submitted through the miniapp, stored, and once the quest creator selects valid answers, our backend calls a smart contract to distribute payouts.

We focused on creating a seamless bridge between real-world data collection and onchain rewards using modular flows (creation, fulfillment, payout).