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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

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

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

Akan

Lagos, Nigeria.
Champion
14
No.1
S

Skia Variants

The Blockchain
Champion
13
No.2
H

Hafiidh Luqmanul Hakim

Indonesia
Champion
7
No.3

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
LLancelot WATELLE
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
VVedant Chainani
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

Parvalon

The missing corporate-actions layer for tokenized stocks. On-chain dividends, stock splits, and record-date semantics — for the tokens that already exist.

Tech StackReact, Solidity, Web3, Next
Builder
NNia Novida
DeFiRWAInfra

RANTAN

Buy to Earn, PERSONALIZED COMMERCE With Data Royalty

Tech StackWeb3, Next, Python, Solidity
Builder
Jjiehon lee
NFTRWAAIInfra

Parmelia

Parmelia is a stablecoin payments app on Arbitrum that lets people receive, request, swap, and manage crypto payments through simple links, QR codes, and a PWA.

Tech StackReact, Web3, Node, Solidity, Arbitrum, Cloudlare, Foundry, Firebase
Builder
DDaniel Cueto
DeFiInfraSocialFi

Treasury GuardRail

AI-powered treasury management system designed for DAOs and organizations Arbitrum Robinhood. By bridging on-chain transparency with off-chain AI intelligence, TG automates risk management, asset rebalancing, and operational payments, ensuring treasury health and sustainability without constant human intervention.

Tech StackNext, Web3, Solidity, Ethers, CI/CD, Node
Builder
BBratipah Kioko
DeFiAIInfra

Nomera

Nomera - Skip the airport kiosk. Swap with a local. Nomera is a peer-to-peer, location-based crypto exchange. Find someone near you, meet for coffee, and swap local cash for tokenized US stocks (TSLA, AMZN, NFLX…) or stablecoins — with every trade protected by an on-chain escrow so neither side can run off with the money. Built for the Arbitrum Open House London Buildathon. Runs on Arbitrum Sepolia and Robinhood Chain testnet.

Tech StackReact, Next, Web3, Ethers, Solidity, Node
Builder
YYigitcan Gokmen
SocialFiDeFiRWA
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