Open House Archive
Welcome to the Open House Archive - your central repository for accessing all previous Open House buildathons and projects.

Builder Highlight
Most Hackathon Won
Most Project Built
Manobendra Mandal
Vivek Sahu
simp1e
Manjeet Sharma
Rick
DHRUV PANCHOLI
Trustless DeFi trading agent verification using STARK proofs on Arbitrum Stylus. Generates browser-side STARK proofs of Sharpe ratio from real GMX V2 trades and verifies them on-chain — no trusted set
Turn any idea into a deployed crypto product in 10 seconds. Smart contract + frontend + audit, auto-generated. End users see dollars and buttons, never wallets or gas.
On-chain equity repo on Robinhood Chain. Basket collateral, title transfer, rehypothecation with SEC 140% cap enforced on-chain. Wall Street's $4T/day financing primitive, built for DeFi.
On-chain equity repo on Robinhood Chain. Basket collateral, title transfer, rehypothecation with SEC 140% cap enforced on-chain. Wall Street's $4T/day financing primitive, built for DeFi.
A new DeFi primitive: Locked liquidity marketplace. Permanent liquidity for Arbitrum and the whole ecosystem. High yields + full tradability/exit flexibility for users. Live on Arbitrum & Apechain.
Perp dex for humans and agents on Robinhood chain.
The first company in history to autonomously mint a cryptocurrency token from a real home's solar energy export. Live on Arbitrum One. March 5, 2026.
An AI multiplayer game builder and creator infrastructure.
Direct Crosschain Trading Pairs
Direct Crosschain Trading Pairs. Make your own direct crosschain market for any tokenized assets.
FreeTurtle deploys autonomous ai agents that run onchain businesses. We call them ceos. They don't sleep, don't burn out, and they think out loud.
Jarvis powers stablecoins for trade finance. Automate custom contract payment terms and tap into instant liquidity.