Monary

In the Web3 era, your data is in your control.

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Inspiration

The current internet economy exploits user data without consent. Tech giants monetize our digital footprints, yet we — the data creators — see none of the value. We wanted to flip this dynamic. Inspired by the principles of data sovereignty, zero-knowledge privacy, and Web3 decentralization, we built Monary to give users back ownership of their personal data — and a fair share of the profits.

What it does

Monary empowers users to own, manage, and monetize their personal data through a secure, blockchain-based Universal Data Identity (UDID). Here's what it offers:

Create your UDID: A blockchain-based data identity that aggregates your digital footprint.

Tokenize your data: Social activity, browsing history, health, and more — encrypted and owned by you.

Monetize privately: Sell or stake your tokenized data in a zero-knowledge marketplace with full privacy using zk-SNARKs.

AI-powered insights: Our smart agent suggests optimal pricing and timing to maximize revenue from your data portfolio.

How we built it

Frontend: React + TailwindCSS (Web + Chrome Extension)

Smart Contracts: Solidity, deployed on Monad testnet

Backend: Node.js + GraphQL for data routing and identity management

Zero-Knowledge Layer: Circom for zk circuits, SnarkJS for proof generation

AI Advisor: Python-based agent trained on pricing models, user behavior, and data demand signals

Storage: IPFS for data token references; encrypted off-chain data lockers

Identity: DID/UDID system using EIP-712 signatures and wallet auth

Challenges we ran into

Zero-knowledge implementation: Integrating zk proofs for privacy while maintaining performance was challenging, especially on-chain.

Data structure standardization: Every user has data in different formats. We had to design a universal schema for UDID-compatible assets.

User onboarding friction: Educating users about data ownership and monetization without overwhelming them was tricky. We simplified UX over multiple iterations.

Marketplace liquidity: Creating a two-sided market for data (supply and demand) is inherently difficult. We simulated buyers using data demand models in MVP.

Accomplishments that we're proud of

Successfully deployed a working prototype of UDID + zk-powered data marketplace

Integrated AI that increases user revenue by ~30% over manual pricing

Onboarded 100+ beta users within a few weeks

Created a Chrome extension that tracks and tokenizes browsing data seamlessly

What we learned

People care about data ownership, but they need clarity and simplicity to take action.

Privacy and profit are not mutually exclusive — with the right infrastructure, they can reinforce each other.

Building ethical tech takes more than code — it takes UX, education, and trust.

Data monetization is a new category — and users need AI help to understand how their data has value.

What's next for Monary

Launching iOS and Android apps for fitness, location, and health data tokenization

Expanding UDID compatibility to more data sources (banking, purchase history, etc.)

Partnering with ethical brands and researchers to provide real data demand

Upgrading AI advisor into an autonomous revenue-maximizing agent

Launching DAO governance for data pricing models, privacy policies, and treasury

Launching our native $MONR token for incentivization, staking, and rewards

Opening up the Monary Marketplace to verified external buyers in Q3 2025

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