Open House Archive
Welcome to the Open House Archive - your central repository for accessing all previous Open House buildathons and projects.
Welcome to the Open House Archive - your central repository for accessing all previous Open House buildathons and projects.
Most Hackathon Won
Most Project Built
Manobendra Mandal
Vivek Sahu
simp1e
zorzalcripto
Rick
Amaan Sayyad
Stogram is a Social x Predictions platform that blends content creation, prediction markets, and staking into a single, creator-driven ecosystem that aims to prioritize user privacy and monetizing engagement.
Smart Cross-Border Remittances, Send money globally with AI-powered FX hedging. Minimize volatility risk while maximizing recipient value through intelligent hedge ratios on Arbitrum
A SuperApp for Payment and Loyalties
Smart Cross-Border Remittances, Send money globally with AI-powered FX hedging. Minimize volatility risk while maximizing recipient value through intelligent hedge ratios on Arbitrum
SmartCache is an automated caching-as-a-service system for Arbitrum Stylus contracts. It allows developers to optimize contract performance directly from their code, without needing to manually interact with the CacheManager through a GUI or CLI. Using a simple annotation such as #[auto_cache], developers can indicate which contracts or functions should be evaluated for caching. An off-chain service then handles the entire process: benchmarking gas usage, analyzing cost-efficiency, and submitting a bid through Arbitrum’s CacheManager if the caching decision is financially beneficial.
Connect your X account and turn followers into rivals. Challenge them to epic games, let others bet and spectate live, and finally prove who’s the best - no talk, just play and win.
BPay is a decentralized protocol for bulk business payments, invoicing, and split-bill management - secure, instant, and multi-chain.
Plexi is a composable ERC-4626 vault on Arbitrum that lets users deposit USDC and automatically gain exposure to yield strategies with real-time transparency. Instead of leaving capital idle or manually chasing yields, Plexi aggregates deposits, allocates them into a strategy, tracks TVL, shares, and hedge ratios on-chain, and provides a clean dashboard to monitor performance. The current MVP focuses on core vault mechanics—deposit, withdraw, and live stats—serving as the foundation for future integrations with protocols like GMX (GLP) and Hyperliquid for real yield and automated hedging.
Vesto is a cross-chain yield aggregator that lets users deposit any token from any chain and automatically earn the best available yield. We handle swaps, bridging, and rebalancing so users stay in the highest APY vault — with one click.
SmartCache is an automated caching-as-a-service system for Arbitrum Stylus contracts. It allows developers to optimize contract performance directly from their code, without needing to manually interact with the CacheManager through a GUI or CLI. Using a simple annotation such as #[auto_cache], developers can indicate which contracts or functions should be evaluated for caching. An off-chain service then handles the entire process: benchmarking gas usage, analyzing cost-efficiency, and submitting a bid through Arbitrum’s CacheManager if the caching decision is financially beneficial.
TriggerX is a decentralized automation protocol that enables smart contracts to execute tasks based on time, conditions, or external events in a fully automated and trustless manner. Built on EigenLayer’s Actively Validated Services (AVS), it provides shared security and decentralization to ensure reliable task execution across multiple blockchains.
SOMA is a blockchain-powered platform transforming cross-border transfers in Africa. Using offline-first USSD technology, it enables instant, low-cost transactions on any mobile phone.