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
Edy Cu
chubbyzroxas
Yayan Fauzi
zorzalcripto
Amaan Sayyad
Aaditya Rawat
ArbiGuard is an autonomous risk firewall for tokenized-asset protocols. It scores live transactions on-chain in a Stylus risk engine, enforces protocol-signed risk policies, and trips a hysteresis circuit breaker the moment an exploit pattern crosses a blocking threshold — then writes the threat signature to a shared registry so every other protected pool is immunized against the same attack. Built for the capital coming to Arbitrum and Robinhood Chain, where a single exploit on tokenized equities is a regulatory event, not just a TVL loss.
Autonomous AI-managed tokenized-stock index fund on Robinhood Chain. ERC-4626 vault with an LLM portfolio manager bounded by on-chain guardrails.
We Provide Refunds for x402 Payments. Wrap calls through our proxy or CLI, pay a small fee per call, get an automatic USDC refund when the API breaks its SLA on latency, availability, or schema.
A decentralized freelance escrow marketplace
Every DeFi intent today dies after execution — you swap, it's done; you deposit, it's forgotten. Sigil changes that. Type your intent in plain English — "Put 2 ETH into yield, exit if ETH drops below $3,500" — and an AI agent decomposes it into on-chain actions. Immediate steps execute right away, while persistent on-chain watchers keep monitoring prices, governance, and risk. When conditions change, Sigil automatically creates and executes a new intent — no human needed. It's the difference between a one-time instruction and a standing guardian for your position. Built on Arbitrum, designed to extend across Orbit chains and Robinhood Chain.
Pay-per-capability for agents: a scarce on-chain right and its execution settle in one atomic transaction nobody can coordinate, censor, or fake.
Autonomous. Secure. Focused. Infrastructure for financial agents that never sleep and never get distracted.
Confidential AI inference with end-to-end encryption, decentralized quorum verification, and on-chain economic settlement on Arbitrum.
Cleave is the first yield-tokenization primitive for AMM LP positions, bringing Pendle-style fixed-income exposure to volatile-pair liquidity for the first time. Built on Uniswap v4 and deployed natively on Arbitrum, where Pendle and Spectra already live.
Laminaa is an autonomous AI orchestrator for tokenized securities — the agent that runs a tokenized asset's entire regulated life after issuance on robinhood and arbitrum chain.