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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

Osmium

x402-compatible policy-bound payments for AI finance agents

Tech StackWeb3
Builder
SSevy Baggia
AIRWA

Spectrum

The only defi app you need

Tech StackPython, React, Node, Solidity, Rust
Builder
UUtkarsh Patel
DeFiRWAAI

hedgeproof-agent

HedgeProof Agent is an AI-powered RWA hedge quote desk that turns stock, crypto, or event-risk exposure into transparent prediction-market hedge quotes and verifiable on-chain receipts on Arbitrum.

Tech StackVue, Web3, Rust, Solidity
Builder
JJiaqi Gu
AIRWA

Caddy Finance

Segregated, permissioned institutional yield vault framework.

Tech StackReact, Next, Solidity, Node
Builder
AAbhishek Sira Chandrashekar
DeFiRWAInfra

Hacker House Protocol

The place where builders find their home — and coordinate it on-chain. Verify your on-chain identity, match with Hacker Houses you actually qualify for, and co-live with trustless escrow on Arbitrum.

Tech StackSolidity, React, Next, TypeScript, Privy , ZeroDev, Supabase, GMX
Builder
CCarol Antonio Franco De la Quintana
SocialFiDeFiNFT

BaseFundAI

BaseFundAI is a trust-aware, non-custodial crowdfunding protocol for real-world needs. We are solving the problem that small, urgent human needs often struggle to receive direct, transparent support. Traditional crowdfunding platforms can involve fees, custody, delays, unclear fund movement, and limited trust signals. Contributors may not know how funds move, while creators may struggle to earn confidence without heavy approval processes. BaseFundAI solves this by letting creators launch campaigns through smart contracts and letting contributors support them directly from their wallets using stable assets like USDC & USDG on supported testnets. The platform does not hold user funds. Campaign creation, contributions, campaign outcomes, creator claims, and contributor refunds are handled transparently onchain. The product also adds trust-aware campaign context, metadata-backed storytelling, campaign status, backer visibility, and live funding data so contributors can make more informed decisions.

Tech StackReact, Web3, Solidity, Node, Vite, Wagmi, Tailwind CSS, Nginx
Builder
VVETRISELVAN E
DeFiInfra

Bundie

Bundie uses options to protect your crypto while it earns yield. One deposit bundles yield strategies across protocols and chains, with an options overlay for downside protection.

Tech StackWeb3, Solidity, MCP, LayerZero, React
Builder
YYudhishthra Sugumaran
DeFiAI

Asceswap

www.asceswap.com

Tech StackWeb3, Solidity, Ethers, Rust
Builder
SSaurabh Yadav
DeFi

obolos

Compliance infrastructure for tokenised equity. Private-market ownership is still fragmented. obolos embeds compliance directly into equity issuance, transfers, and governance.

Tech StackSolidity, Noir, FHE, RWA tokenisation, React, Ethers, Stylus, ZK
Builder
PPetros G. Sideris
RWAInfraOther

Universal Arbitrum Kit

Universal Arbitrum Kit is an intent-based cross-chain infrastructure that allows developers to deploy applications once on Arbitrum while enabling users from any blockchain to interact seamlessly without bridging or switching networks.

Tech StackNext, Web3, Solidity, Ethers, Node, React, hardhat, foundry
Builder
NNeeraj Choubisa
DeFiInfraOther

RYex

The capital layer for perpetual markets. Perp positions become ERC-20 rTokens. Extract, trade, or redeploy the liquidity without closing the position.

Tech StackSolidity
Builder
SSharon Yoo
DeFi

VaultFlow

Set-and-forget yield infrastructure for earning higher APY on idle EURC

Tech StackReact, Next, Typescript, Rust
Builder
AAdrian Oduma
DeFiOther
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