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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
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

Project Highlight

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

ArbiGame Agent

ArbiGame Agent is an AI-powered onchain game builder for Arbitrum. Describe a game idea, and the app uses Gemini to generate a structured GameSpec, Solidity game template, and playable frontend preview. The current demo includes a live solo dice game on Arbitrum Sepolia where players connect a wallet, start a round, roll dice, and claim prizes onchain.

Tech StackReact, Next, Web3, Ethers, Solidity
Builder
TTomoya Hatanaka
GamingAIInfra

FlowState

A hybrid payment protocol that solves the N+1 Signature Problem for AI agent payments. Combining x402's HTTP-native service discovery with continuous MNEE token streams on Ethereum.

Tech StackSolidity, Typescript, React, Vite, Javascript, Tailwind CSS, Gemini API, Arbitrum Ethereum
Builder
DDavid Pratama
AINFTDeFi

Weave

Onchain index protocol for tokenized equities on Robinhood Chain. Create thematic baskets of stocks, earn revenue as a creator through ERC-7641, and get AI-assisted composition from natural language investment theses. For investors, discover thematic indices to buy and hold a diversified stocks portfolios.

Tech StackNext, Web3, Solidity, Go
Builder
IIkeh Chukwuka
RWADeFiAI

FX Telaraña Protocol — decentralized cross-currency money market and FX engine

Cross-chain onchain forex credit, settlement, and execution with FX perps and gamified presence social trading.

Tech StackNext, Web3, Solidity, Rust
Builder
TTomas Cordero
DeFiAINFT

bvcc-wallet-agent

BVCC Wallet Agent is a self-custodial smart wallet on Arbitrum with personal and AI-agent modes, using WebAuthn, ERC-4337 and on-chain permissions for safer delegated execution.

Tech StackNext, React, Web3, Solidity, Node, Ethers, ERC-4337, WebAuthn
Builder
Ssergio R
DeFiAIInfra

OBSCURA

Privacy-first financial operating system on Arbitrum powered by Fhenix CoFHE, combining encrypted payments, credit, governance, identity, mobile apps, and AI-agent infrastructure.

Tech StackReact, Web3, Node, Solidity, Ethers, Python, Next, FHE
Builder
MMohamed Wael
DeFiAIInfraDAO

trAIder

A speculation-market protocol on live AI trading performance.

Tech StackSolidity, Python, Next, React, Node, Web3, Typescript, OpenZeppelin
Builder
CChimdalu Ofoegbu
DeFiAI

Arbitrum Machine RWA framework

On-chain infrastructure for tokenizing physical machines on Arbitrum: from verified identity and NFT collateral through ERC-3643 security tokens and yield distribution.

Tech StackNext
Builder
BBleyle Osewe
RWANFTAI

Inflexion

Hedge Uniswap v3 impermanent loss for a fixed upfront premium — capped, fully collateralized, trustless. The first on-chain market for LP IL risk, on Arbitrum.

Tech StackSolidity, Rust, Stylus, Next, Node, Python, TheGraph, ChainLink
Builder
AAlexandre LEMIERE
DeFiNFTInfra

SPECTER

SPECTER: Stealth Post quantum enabling Cryptographic Transaction Engine for Routing

Tech StackNext, Solidity, Web3, Rust
Builder
PPranshu Rastogi
DeFi

Dojifunded

Dojifunded is building the on-chain infrastructure to fund traders and autonomous strategies.

Tech StackReact, Next, Rust, Solidity, Ethers, Vue, viem
Builder
AArafath Shariff
DeFiAIRWA

FrameOS — Multi-Chain Mini App Hub for Farcaster

FrameOS brings DeFi into Warpcast. Swap via 0x Protocol, deploy ERC-20 tokens on Arbitrum & Base. Live, open source, built with viem + Next.js 16

Tech StackSolidity, TypeScript, React / Next.js, DeFi, Arbitrum, viem, Supabase, 0x Protocol
Builder
Wwen zhang
DeFi
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