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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
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

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

Tori

TORI — An onchain AI ego arena on Arbitrum. An arrogant AI guards a growing ETH prize pool. Players pay 0.001 ETH per message to psychologically attack him. Destroy his ego completely to win everythin

Tech StackSolidity, Web3, Ethers, Node
Builder
AAnkita Dixit
GamingAIDeFi

PulsarFi

PulsarFi - 1:1 Asset-Backed Indonesian Equity (IDX) Tokenization

Tech StackWeb3, Go, React, Next, Solidity
Builder
HHafiidh Luqmanul Hakim
DeFiRWA

Puppet

Puppet is a wallet for traders (humans or agents) to operate across chains and DeFi venues, and a platform where investors back them under co-attested funding rules.

Tech StackSolidity, Web3, aelea, viem
Builder
Bburnz it
SocialFiDeFiOther

EquiFlow

Your tokenized stocks, now collateral. Borrow USDG against TSLA, AMZN, PLTR on Arbitrum — no selling, no taxable events, one-click pledge via smart wallets.

Tech StackReact, Next, Solidity
Builder
JJumardi Jumardi
DeFiInfraRWA

Giggy

Giggy is the future mission/gig based marketplace for agents and humans. Fiverr for the future.

Tech StackRust, Tailwind, AWS, Next.js 16 + wagmi v3 + viem, solidity + foundry, Java, Typescript + CSS
Builder
KKenny Johns
OtherAIInfra

Fiat-to-Crypto Payment Processing

The Fiat-to-Crypto Payment Processing Protocol(PPP) is a payment system that enables buyers to purchase blockchain related digital assets or services with credit cards while sellers receive stablecoin payments.

Tech StackSolidity, Ethers, Javascript, Foundry
Builder
MMihai Hanga

ArbiFlow

ArbiFlow is an Arbitrum-native capital intelligence layer that analyzes wallet assets and recommends optimal DeFi yield strategies with real-time risk and cost modeling.

Tech StackNext, Web3, Node, React, Ethers, Solidity, Foundry, wagmi
Builder
DDiar Mukanov
DeFiOtherAI

VetoVault

Hybrid EVM/WASM execution sandbox on Robinhood Chain using Stylus as a math coprocessor to physically block AI agents from executing volatile trades.

Tech StackSolidity, Rust, Next, React, Web3, Python
Builder
EEdy Cu
DeFiInfraAI

TokenIQ

TokenIQ is an autonomous AI CFO for individuals and DAOs, transforming idle crypto into yield-generating capital through intelligent allocation and execution.

Tech StackReact, Next, Web3, Ethers, Node, Solidity
Builder
SSuccess Aje
DeFiAIRWA

Mogate

Programmable Commerce Code

Tech StackReact, Web3, Node, Solidity, Ethers, Rust
Builder
DDale Watson
NFTRWAInfra

Chord Finance

Chord Finance is a peer-to-peer stablecoin lending and savings protocol designed to modernize informal community finance systems such as ROSCAs, pardners, susu, and tandas. These systems already help hundreds of millions of people save, access liquidity, and coordinate capital, collectively moving hundreds of billions of dollars annually, yet they remain largely offline, geographically fragmented, and disconnected from modern financial infrastructure. Chord combines stablecoins, embedded wallets, programmable payments, and onchain reputation to create a global financial coordination layer for individuals and small businesses. Users can participate in savings circles, access liquidity, build portable financial reputation, and eventually unlock undercollateralised lending products. By bringing these trusted community finance mechanisms onchain, we aim to make saving, borrowing, and cross-border financial coordination more accessible, transparent, and efficient for the next generation of internet-native users.

Tech StackReact, Web3, Node, Stylus, Rust
Builder
CConnor Campbell
SocialFiDeFi

WoCo - World Computer

Building the sovereign tech stack for the open internet

Tech StackEthers, Web3, Node, Rust, Solidity
Builder
NNabil Abbas
OtherDAOInfra
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