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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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By ProjectBy Buildathon
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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
D

Doraking

Champion
3
No.1
T

Timiade888

Champion
1
No.2

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

Fylaro

Fylaro is a revolutionary invoice financing marketplace built on the principles of the Finternet, leveraging tokenization and the Unified Ledger to connect businesses seeking working capital with global investors.

Tech StackReact, Web3, Ethers, Solidity, Node, Tailwind CSS, Vite, Typescript
Builder
NNilesh Pathak
DeFiRWAOther

Safe WorkPay

SafeWorkPay is a freelancing platform for IT projects and coding tasks. It uses Blockchain and AI technology to make sure clients and freelancers have a secure and fair experience.

Tech StackReact, Web3, Ethers, Node, Solidity, Arbitrum One, AI Agent, Hardhat
Builder
RRahul Rathore
DeFi

dapps.co

Invest in communities like stocks (think reddit meets pump.fun)

Tech StackReact, Web3, Ethers, Node, Solidity, Python
Builder
MMohit Madan
SocialFiDAO

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
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