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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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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

RobinUSD

A stablecoin backed by real stock tokens on Robinhood Chain

Tech StackWeb3, Next, Node, Solidity
Builder
NNestor Campos
DeFiRWA

CFO-Agent

Programmable CFO that holds your treasury and executes payments autonomously on Arbitrum. 24/7. No manual transactions. No missed payments.

Tech StackReact, Web3, Node, Ethers, Solidity, typescript, vite, hardhat
Builder
MMiracle Ugokwe
AIDeFiInfra

YaderChain

Decentralized Nucleus for Post-Quantum Secure AI Computing and DePIN Infrastructure.

Tech StackWeb3, Rust, Node
Builder
SStanislav Shmarov
DeFiInfraAI

Politage

What if your DeFi portfolio could run itself — without you ever giving up control? Pilotage lets you hire AI agents to manage your vault, with cryptographic guarantees they can never steal your funds.

Tech StackNext, Web3, Solidity, TypeScript, ERC-8004, Gemini, Aave, Viem
Builder
MMateusz Paluch
DeFiAIInfra

AURA

Federated training protocol for JEPA world-model games. Anyone plays one of three browser games and co-trains a shared model via local SGD. Every accepted gradient is individually scored (leave-one-out Shapley), ed25519-signed, keccak-merkle-committed, and anchored on Arbitrum Sepolia. Soulbound aura score = verifiable training-data provenance.

Tech StackPython, Solidity, Rust, Web3, Ethers, Node
Builder
RRodrigo Soto Altamirano
AIGamingInfra

Raycast protocol

A cross-chain vault protocol that eliminates the complexity of bridging by abstracting transactions and socializing costs across users making L2 interactions seamless and cost-efficient.

Tech StackReact, Node, Solidity
Builder
FFawuzan Ibrahim
DeFiSocialFiInfra

AgentPay Radar

Tech StackPython, Solidity, Web3, Node
Builder
RRomu Dillenberg
AIDeFiInfra

HyperHaus Capital Allocation & Agentic Trading

Hyperhaus is a Capital allocation platform with agentic trading capabilities

Tech StackReact, Solidity, Web3, Viem, Ostium SDK
Builder
EEmmauel Bagoole
DeFiSocialFiAIDAO

AlphaGrid - Decentralized prop trading arena for autonomous agents

AlphaGrid is a decentralized prop trading protocol where autonomous AI financial agents compete for capital under transparent onchain risk rules, while trading tokenized stocks on Robinhood Chain.

Tech StackMCP/API, 4. ERC-4626 Vaults, AI Agents, Prop Trading, Onchain Reputation
Builder
VVojtech Rychnovsky
AIDeFi

TEE Agent

Tee Agent is an Arbitrum-native trust passport for AI agents. It lets agents be minted as on-chain entities with ERC-8004 identity and reputation, ERC-7857 encrypted private data, and Phala Intel TDX oracle execution verified through Automata DCAP.

Tech StackReact, Next, Solidity, Node, TEE, 0g Storage, IPFS, Inel TDX
Builder
JJulien Atanasyan
AIInfraOther

StocksCalendar

Trade Robinhood Stocks with SEC fillings, prediction markets, & earnings signals powered by Hermes research agent,

Tech StackNext, Web3
Builder
MMark 0x
AIRWA

teste11 copy

teste 11

Tech StackNode, Move, depin
Builder
Zzorzalcripto cripto
DeFiNFTDAO
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Builder Highlight

Most Hackathon Won

Most Project Built

Builder Highlight

Most Buildathon Won
M

Manobendra Mandal

Kolkata, India
Champion
3
No.1
V

Vivek Sahu

India
Champion
2
No.2
s

simp1e

china
Champion
2
No.3
Most Project Built
A

Aaditya Rawat

Champion
29
No.1
S

Skia Variants

The Blockchain
Champion
14
No.2
A

Akan

Lagos, Nigeria.
Champion
14
No.3