Web3 · Security · React
MonadGuard
Year
2025
Duration
5 weeks
Role
Frontend Developer
Category
Web
Overview
Client Type
Web Product
Delivered
2025
Timeline
5 weeks
MonadGuard is a security tool built for the Monad blockchain ecosystem. It analyzes wallet behavior to detect Sybil attacks, where a single actor operates many wallets to game airdrop campaigns or governance votes.
The Challenge
Web3 projects were losing significant value to Sybil farmers. Teams needed a fast, reliable way to score wallets and flag suspicious activity without requiring deep on-chain data expertise.
The Solution
React frontend consuming on-chain data via Monad RPC nodes. A Node.js scoring engine analyzes transaction patterns, contract interactions, and timing heuristics. Results are cached and surfaced in an interactive dashboard.
Features
What Was Built
Sybil Scoring
Each wallet receives a 0-100 risk score based on behavioral analysis across 12 on-chain signals.
Wallet Graph
Visual graph of wallet-to-wallet connections to surface clusters of related accounts.
Batch Analysis
Upload a CSV of wallet addresses for bulk scoring, ideal for airdrop vetting at scale.
Export Reports
Download a full analysis report per wallet or batch for internal team review.
Outcomes
Results
Wallet analysis completed in under 3 seconds per address
Adopted by 3 Web3 projects for pre-airdrop screening
Flagged 12%+ of tested wallets as likely Sybil accounts
Stack
Technologies Used
React
TypeScript
Node.js
TailwindWork Together
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