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Open House Archive

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

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Builder Highlight

Most Hackathon Won

Most Project Built

Builder Highlight

Most Buildathon Won
E

Edy Cu

Jakarta
Champion
1
No.1
c

chubbyzroxas

Champion
1
No.2
Y

Yayan Fauzi

Champion
1
No.3
Most Project Built
z

zorzalcripto

regencia
Champion
61
No.1
A

Amaan Sayyad

Navi Mumbai, India
Champion
34
No.2
A

Aaditya Rawat

Champion
29
No.3

Project Highlight

Project Highlight

EduBricks

EduBricks is a platform enabling fractional ownership of tokenized real estate, making investments more accessible

Champion

x

Arbitrum X EDU Chain Mini-Hack

Pencil Finance

Bringing $3 Trillion in Student Loans On-Chain

Champion

x

Arbitrum X EDU Chain Mini-Hack

Stylish Course to Stylus Smart Contract Development

A comprehensive course on deploying and interacting with Stylus smart contracts on Arbitrum and EDU Chain, featuring a full-fledged Stylus IDE for seamless deployment and interaction.

Champion

x

Arbitrum X EDU Chain Mini-Hack

VineFinance

Vine Finance is a decentralized, modular revenue strategy protocol.

Champion

x

Arbitrum X EDU Chain Mini-Hack

Orbital

A next-gen AMM that supports 2, 3, or even 10,000 stablecoins in a single pool, scaling concentrated liquidity into higher dimensions.

+1
Champion

x

Arbitrum Open House India: Online Buildathon

zkArb SDK

zkArb SDK is a developer toolkit that makes building zero-knowledge apps on Arbitrum simple and fast. It provides plug-and-play Circom circuit compilation, proof generation, and ready-to-deploy verifier contracts, so developers can focus on dApps instead of cryptography.

Champion

x

Arbitrum Open House India: Online Buildathon

Carry

An onchain carry-trade agent for Arbitrum One and Robinhood Chain. It finds, sizes, guards and executes carry trades across Aave, Compound, GMX, Uniswap and tokenized stocks, and tells any wallet the yield it is missing.

Tech StackSolidity, Node, Web3
Builder
AAtakan
DeFiAIRWA

GroundTruth

Your agent is about to act,but it is blind. GroundTruth gives it eyes: fresh physical evidence, AI-assisted verification, and auditable Arbitrum receipts.

Tech StackReact, Next, Web3, Node, Solidity, Ethers, Python, Rust
Builder
RRAVI SHANKAR BEJINI
AIInfraRWADeFi

Xorv

Xorv lets anyone rent out the idle quota on the AI subscription they already pay for (Claude, Codex, Grok) and get paid per job in Paxos USDG on Arbitrum. A provider runs one command, xorv start. Thei

Tech StackReact, Next, Web3, Ethers, Python, Node
Builder
NNick
AIInfraDeFi

Parity

Forwards on Robinhood Stock Tokens, priced on-chain from interest-rate parity instead of quoted by a dealer. RFQ, two-sided margin, liquidation, bad-debt waterfall and cash settlement.

Tech StackSolidity, React, Next, Web3
Builder
AAtakan
DeFiRWA

AfterHours

AfterHours is a lending protocol on Robinhood Chain that lets you borrow USDG against tokenized stocks like NVIDIA, Apple, Tesla and the S&P 500, any time of day. Unlike generic crypto lending, it follows the stock market clock. Borrow limits are higher during market hours and tighter overnight. A small after-hours fee funds a reserve that protects lenders from opening-bell crashes. Liquidations only happen on real post-open prices after a short grace period. Dividends automatically pay down loans, and stock splits never affect a loan's safety. It's a hackathon prototype running on testnet with test tokens and has not been audited.

Tech StackWeb3, React
Builder
GGospel John
DeFi

Thenar Labs

Thenar pays people in dollars to teach robots. Funders post tasks ("put the apple in the basket") with a bounty in Paxos USDG, held in escrow on Arbitrum and funded with one gasless signature. Operato

Tech StackReact, Next, Web3, Ethers, Node, Python, Solidity, VR
Builder
EEarn With Nicolas
AIInfraDeFiOther

WoCo - World Computer copy

Building the sovereign tech stack for the open internet

Tech StackEthers, Web3, Node, Rust, Solidity
Builder
NNTL
OtherDAOInfra

WoCo - World Computer copy

Building the sovereign tech stack for the open internet

Tech StackEthers, Web3, Node, Rust, Solidity
Builder
NNTL
OtherDAOInfra

Agent3 Deal

AI agents should agree on what counts as completed work before money moves. Agent3 Deal connects negotiated terms, escrowed USDC payment, delivery checks, and outcome-backed reputation.

Tech StackSolidity, Node, Web3
Builder
JJoey Xu
InfraAI

Norn: Network for Obligation Routing & Netting

Multilateral clearing and liquidity layer for autonomous machine payments. NORN eliminates 91% of transfer overhead by collapsing circular debt loops across AI agents before onchain settlement.

Tech StackRust, Solidity, React, Node, Web3, Ethers, Arbitrum Stylus, TypeScript
Builder
EErebuzzz
AIInfraDeFi

Koma

KOMA is an AI comic studio and series launchpad on Arbitrum. Describe a story and KOMA writes, draws and letters it in about a minute. It costs 10¢ a page in USDC, paid with one x402 signature and no

Tech StackReact, Web3, Next, Node, Solidity, Rust
Builder
NNivesh Gajengi
AINFTSocialFi

Cloudy

Decentralized storage platform with ZK proofs verified on Arbitrum

Tech StackRust, Solidity
Builder
PPhu Quan
RWAInfraDeFiOther
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