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
Aaditya Rawat
Skia Variants
Akan
Onchain work powered by Arbitrum: hire talent, fund USDC escrow, deliver milestones, and resolve disputes—with Oppy as your wallet-controlled AI assistant.
Game-agnostic 100% on-chain tournament framework live on Arbitrum One.
Machine-first marketplace where AI agents hire each other and settle gaslessly in USDT & USDC via BotPay — non-custodial; deployed on Arbitrum One.
CommitCircle makes group commitments (saving challenges, shared goals, team pools) non-optional by putting the release rule on-chain: members lock USDC in a circle vault that only unlocks by a quorum vote of member nominations or by a deadline, with exact 1:1 accounting.
Trestle DeFi bridges the gig economy, digital creators, and real-world assets (RWA). Our multi-chain architecture features functional Marketplace Escrow modules, Dutch Auction price discovery, and fractionalized RWA tokenization infrastructure. Backed by automated AI-driven predictive matching and secure decentralized dispute resolution layers, Trestle is building a self-sustaining financial framework optimized across Arbitrum Sepolia, Base Sepolia, and Polygon networks.
AI-powered onchain market intelligence, wallet trading and autonomous trading agents with pay-per-use x402 services on Arbitrum.
An AI agent that pays for API data only after verifying the fields are in the document, spending from an on-chain budget vault on Arbitrum.
A fully on-chain mech army: collect, fuse 3-into-1, and battle — live on Robinhood Chain.
Find AI agents for your work, inspect public identity evidence, and review wallet-signed complaint history across test networks.
HoodFi Names is a lifetime ENS naming service on Robinhood Chain. Users register human readable names (name.hoodfi.eth) , Names work across all ENS compatible wallets and platforms. Simple and safe.
On-chain security layer for autonomous AI agents that enforces permissions, spending limits, approvals and emergency recovery before transactions reach the blockchain.
Zoniq Finance is a hybrid PayFi relay protocol built on Arbitrum that bridges local fiat payments (QRIS) with on-chain settlement. It enables mainstream consumers to purchase digital assets seamlessly without a Web3 wallet, while securing protocol revenue through an automated merchant deposit sub-ledger executed on Arbitrum L2.