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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

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 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
z

zorzalcripto

regencia
Champion
51
No.1
z

zcy22606

chengdu
Champion
26
No.2
D

David Barasa

Kenya
Champion
19
No.3

Thnikedge

ThinkEdge is a decentralized, AI-powered virtual classroom system designed to transform traditional online education into a more interactive, transparent, and learner-centric experience. Our platform integrates blockchain for trust and transparency, AI for personalized learning paths, and edge computing for low-latency, real-time interactions. By decentralizing control, ThinkEdge empowers educators and learners to connect without relying on centralized intermediaries, ensuring fair access, data ownership, and automated engagement tracking.

Tech StackReact, Web3, Java, Rust
Builder
VVipin Singh
DAONFTAI

ChainYodha.Ai

ChainYodha.Ai provides transparent wallet and project trust scores derived from onchain activity and optional offchain signals. It exposes an onchain oracle contract where dApps can query wallet trust

Tech StackReact, Next, Web3, Ethers, Node, Solidity, Rust, Python
Builder
AAaditya Rawat
AIInfraDeFi

ChainYodha.Ai

ChainYodha.Ai provides transparent wallet and project trust scores derived from onchain activity and optional offchain signals. It exposes an onchain oracle contract where dApps can query wallet trust

Tech StackReact, Next, Web3, Ethers, Node, Solidity, Rust, Python
Builder
AAaditya Rawat
AIInfraDeFi

CrossFund

Swap 300+ Cryptos like solana, bitcoin, etc into ETH on Arbitrum

Tech StackNext, React, Web3, Ethers, Node, Solidity, Ethereum, Arbitrum
Builder
HHimanshu Rawat
DeFiInfra

CrossFund

Swap 300+ Cryptos into any Native Ecosystem Tokens

Tech StackNext, React, Web3, Ethers, Node, Solidity, Ethereum, Arbitrum
Builder
Hhimanshu rawat
DeFiInfra

DCA Agent

DCA Agent is a Farcaster Mini-App built on Arbitrum Mainnet using the VibeKit SDK. It allows users to create automated DCA strategies in the simplest possible way - by just typing a natural language prompt. The app leverages VibeKit MCP tools and executes swaps through Camelot DEX, making the process seamless and non-custodial.

Tech StackNext, Web3, Ethers, Node, TypeScript, JavaScript
Builder
BBhumi Sadariya
DeFiAI

Spend2Grow – Auto-Invest Leftover Change

Spend2Grow auto-invests your leftover change from MetaMask Card transactions into DeFi yield farms turning spare cents into growing savings, effortlessly and intelligently.

Tech StackReact, Web3, Ethers, Next, Node, MetaMask SDK, Circle Wallets
Builder
RRohit Sharma
DeFiSocialFiInfra

MetaLoot

Imagine earning rewards not just for what you spend—but for how you spend. Welcome to MetaLoot, the gamified cashback revolution built for the Web3 age.

Tech StackReact, Next, Web3, Ethers, Node, Solidity, Blockchain, MetaMask SDK
Builder
RRohit Sharma
DeFiNFTGaming

ArbiGrid

A decentralized P2P energy marketplace on Arbitrum, enabling users to buy, sell, and trade renewable energy securely with smart contracts, real-time tracking, and wallet integration.

Tech StackReact, Web3, Next, Solidity, Ethers
Builder
RRohit Sharma
RWADeFiInfra

ArbiGrid

A decentralized P2P energy marketplace on Arbitrum, enabling users to buy, sell, and trade renewable energy securely with smart contracts, real-time tracking, and wallet integration.

Tech StackReact, Web3, Next, Solidity, Ethers
Builder
RRohit Sharma
RWADeFiInfra

Metanexus

Metanexus is an all-in-one gaming hub that merges Web2 and Web3 gaming into a single ecosystem. Unlike fragmented platforms where gamers jump between Steam for games, Discord for chat, OpenSea for NFTs, and separate esports sites for tournaments, Metanexus brings everything together in one place.

Tech StackReact, Web3, Solidity
Builder
JJahnet Kiminza
GamingNFTSocialFi

SkillPays

SkillPays isn't just another learning platform. It's a platform focused on originality, producing students who acquire actual ready-for-market skills, not just abstract knowledge. The platform introduces leaderboards and hackathons for top students, allowing them to showcase their skills by building solutions and innovations to compete for a prize. Our platform also allows organizations to create and monetize bootcamps (optional). This makes it a win-win for everybody.

Tech StackNext, Web3, Ethers, Solidity
Builder
MMarcelina Idoko
DeFiNFTDAO
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