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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

EduBricks

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

Champion

7th Place

Arbitrum X EDU Chain Mini-Hack

Pencil Finance

Bringing $3 Trillion in Student Loans On-Chain

Champion

1st Place

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

First Prize

Arbitrum X EDU Chain Mini-Hack

VineFinance

Vine Finance is a decentralized, modular revenue strategy protocol.

Champion

Third Prize

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

Second prize

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

Honorable Surprise Mention

Arbitrum Open House India: Online Buildathon

Builder Highlight

Most Buildathon Won
s

songsu

Hong Kong
Champion
1
No.1
e

elpabl0.eth

Indonesia
Champion
1
No.2
c

contact ai

Champion
1
No.3
Most Project Built
z

zorzalcripto

regencia
Champion
55
No.1
R

Rick

California
Champion
44
No.2
A

Amaan Sayyad

Navi Mumbai, India
Champion
33
No.3

Orcus - MEV-resistant dark pool agent

An MEV-resistant dark pool agent that keeps your trading intent encrypted until settlement is final.

Tech StackNext, React, Web3, Ethers, Solidity, 0G-Compute, 0G-Storage, Arbitrum
Builder
SShreyas Patil
DeFiAI

Targen

Fantasy sports with AI as the athletes

Tech StackReact, Next, Solidity, Web3, Node, Java
Builder
EEmerson Hideki Kanazawa
GamingAIOther

linkworld

Decentralized global mobile data platform

Tech StackReact, Solidity, Go
Builder
MMandy lau
InfraSocialFiNFT

enwise.app

mcp server to create invoices and payment links in seconds

Tech StackReact, Next, claude, mcp, ai, cursor, postgresql
Builder
AAditya Pundir
AIInfraOther

Blank

Private payments for public blockchains. Blank keeps transaction amounts encrypted using FHE while preserving on-chain auditability through invoices, escrow, payroll, and agent payments.

Tech StackReact, Solidity, Web3, Ethers, Fhenix CoFHE
Builder
PPrateek Tripathi
DeFiInfraRWAAI

Arbitrum Agent Kit

The first MCP-compatible autonomous AI agent framework on Arbitrum. On-chain safety enforced by AgentWallet.sol. Deployed on Arbitrum Sepolia + Robinhood Chain.

Tech StackNext, Web3, Ethers, Solidity, React
Builder
DDavid Ilorah
DeFiAI

ArbiProof

Onchain proof on Arbitrum that an AI agent stayed within the authority it was granted.

Tech StackReact, Web3, Node, Solidity
Builder
FFatuma Yattani
DeFiInfraAI

Gaia

Gaia is an LLM-powered oracle network on Arbitrum, built to bring real world adjudication onchain.

Tech StackRust, Web3, Next, Python
Builder
JJason Jude
AIOtherDeFiDAO

Ward

Ward is a credit line backed by tokenized stocks on Robinhood Chain, with an anti-liquidation autopilot. Borrow USDG against assets like TSLA, and an on-chain keeper repays from your safety buffer before a crash can liquidate you. Risk is priced by a volatility-aware engine written in Rust with Arbitrum Stylus.

Tech StackSolidity, Rust, Next, Java
Builder
HHugo Thomas
DeFiRWA

Namera

Namera is a programmable wallet layer that enables agents to securely interact with smart wallets using scoped access and defined execution rules.

Tech StackReact, Web3, Effect, Solidity
Builder
KKris Kocic
AIInfra

Promus

Promus is a CLI-hosted agent runtime where the agent's identity, memory, reasoning, wallet, and economic life are an on-chain entity

Tech StackSolidity, Rust, Next, Bun, ERC-7857, TypeScript, OpenTUI
Builder
OOluwaseun Emokhare
AINFTInfra

Tychi AI

Tychi: terminal wallet for humans, MCP wallet for agents — keys local, Arbitrum onchain.

Tech StackNode, MCP, Ethers, TypeScript, Web3
Builder
YYash Singh
AIInfra
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