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
Akan
Skia Variants
Hafiidh Luqmanul Hakim
Turn Your Customer Base Into Your Brand's Marketing Team! BrandHero is a loyalty rewards platform that uses AI for creating RELEVANT bounties and ARBITRUM as the loyalty programs' trust layer!
Shinobi Cash: Cross-Chain Privacy Pools for the Multi-Chain World Shinobi Cash revolutionizes blockchain privacy by enabling users to deposit from any EVM chain and withdraw privately on any other chain. Shinobi Cash is built to meet users where they are, i.e, CrossChain. Key Features: - Built on Account Abstraction and OIF standards - Cross-chain deposits and withdrawals - 50-80% lower withdrawal costs using Paymaster and AA infra - Regulatory compliant with Association Set Provider - Single deployment serves all EVM chains - No custom relayer dependency
ZYURA makes flight delay insurance simple and instant using Arbitrum. Travelers pay a small premium, and if their flight is delayed, payouts are triggered automatically through smart contracts. No paperwork, no claims, and no waiting, just fast, reliable coverage. We make travel insurance transparent, affordable, and accessible to everyone.
ArbiRupee is a Rupee-backed stablecoin on Arbitrum, enabling INR deposits via Razorpay and 1:1 arbINR minting for seamless DeFi access.
Zynqtra is a gamified networking platform that makes events more engaging through QR scans, interest-based matches, and interactive challenges with live leaderboards.
A Stylus-powered recurring payments protocol on Arbitrum One, enabling automated subscriptions and payouts with Gelato.
A comprehensive DeFi platform on the Mantle chain providing secure transfers, group payments, and smart savings features
A payment solution that lets users pay via stablecoins directly from their crypto wallets, while merchants receive instant INR through UPI, bridging the gap between crypto and everyday payments.
We’re building Unwallet, a new payment infrastructure designed for the agent-driven future. It enables agents, people, and businesses to transact seamlessly on Arbitrum Sepolia with USDC, supporting micro-payments, stealth P2P transfers, and plug-and-play business integrations.
Fargo is a platform that lets users create AI-generated images using their own NFTs. Users can mint these AI-generated images as new NFTs to store them permanently and create even more AI creations.
**Escrow Guild** is an AI-powered platform that automates secure, one-time smart contract generation for Escrow trades
CredStreak is an on-chain accountability app where users stake tokens on challenges—starting with fitness steps —and prove completion with Reclaim zkTLS,Built as a Farcaster mini-app on Arbitrum, it turns streaks into social, verifiable achievements.