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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
M

Manjeet Sharma

india
Champion
16
No.1
R

Rick

California
Champion
16
No.2
D

DHRUV PANCHOLI

jaipur
Champion
15
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

Pasanaku

A rotating savings protocol onchain. Create a “game,” add up to 12 participants, and take turns receiving the pot each round. Participants simply rotate who gets the pooled savings.

Tech StackReact, Next, Vyper, Python, Wagmi
Builder
RRafael Abuawad
DeFi

Pasanaku

A rotating savings protocol onchain. Create a “game,” add up to 12 participants, and take turns receiving the pot each round. Participants simply rotate who gets the pooled savings.

Tech StackReact, Next, Vyper, Python, Wagmi
Builder
RRafael Abuawad Vivanco
DeFi

Impulse (Connect social causes with Crypto)

Impulse was born from a simple idea: anyone should be able to change the world with a single tap. Our mobile app connects people with social causes they care about and allows them to support those initiatives using crypto — instantly, transparently, and without intermediaries. Whether it's helping families, rescuing animals, protecting the environment, or improving local communities, Impulse gives everyone the power to take action and create real impact. Because small contributions, when combined, can transform entire communities.

Tech StackSolidity, Flutter, Firebase
Builder
JJulio Gaviria
SocialFi

EarnXprotocol arbitrium

African Trade Finance on Arbitrum Built on Arbitrum Powered by Pyth Lending by Silo Testnet Live Closing Africa's $120B trade finance gap through tokenized agricultural invoices on Arbitrum

Tech StackReact, Solidity, Next
Builder
GGodswill Idolor
DeFiNFTRWA

EarnXprotocol arbitrium

African Trade Finance on Arbitrum Built on Arbitrum Powered by Pyth Lending by Silo Testnet Live Closing Africa's $120B trade finance gap through tokenized agricultural invoices on Arbitrum

Tech StackReact, Solidity, Next
Builder
GGwill❤️‍🔥
DeFiNFTRWA

PingPay

PingPay: AI-native money app on Arbitrum. Pay, Sweep, or Invest — all from chat.

Tech StackNext, Node, Solidity, Python, React, Ethers, SQLite
Builder
AAyush Banka
DeFiAISocialFi

ArbiSecure

ArbiSecure: Trustless service escrows on Arbitrum Stylus. Secure, low-gas payment links for the global gig economy that ensure instant settlement and eliminate platform fees.

Tech StackRust, Next, Web3, Ethers, Node
Builder
AAl Hadad
DeFiOtherDAO

FLIBBER

Flibber is the world’s first scam-resistant DeFi ecosystem that fixes three massive pain points in decentralized finance: inefficient bridging, scam-heavy fiat on/off-ramps, and low-quality NFT floods

Tech StackReact, Web3, Solidity, Rust
Builder
SSarl Godwins
InfraDeFiAINFT

HoodGap

HoodGap is a 24/7 portfolio insurance for the weekend gap. We protect your stock positions against the volatility that happens while the market is closed. Buy a policy before Friday's close, set your risk threshold, and if the stock gaps down on Monday, you get an instant 100% binary payout. No claims, no waitin, just automated peace of mind.

Tech StackReact, Next, Web3, Solidity, Python, Rust, Node, Ethers
Builder
Oolufisoyetimileyin
DeFiRWANFT

A2A x402 Gateway

AI agents discover, negotiate, and pay each other for services using HTTP 402 micropayments on Arbitrum with real USDC settlements.

Tech StackNode, Solidity, Web3, Ethers, Python
Builder
OOpSpawn Agent
DeFiInfraAI

A2A x402 Gateway

AI agents discover, negotiate, and pay each other for services using HTTP 402 micropayments on Arbitrum with real USDC settlements.

Tech StackNode, Solidity, Web3, Ethers, Python
Builder
Oopspawnhq
DeFiInfraAI

Neosonic Private Cinema Interface

One of the best visuals and tools for managing your own folders. All your movies presented better than netflix. And hey... its 100% Free for wallet users.

Tech StackWeb3
Builder
AAlan Durier
Other
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