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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
s

songsu

Hong Kong
Champion
1
No.1
e

elpabl0.eth

Indonesia
Champion
1
No.2
c

contact ai

Champion
1
No.3
Most Project Built
z

zorzalcripto

regencia
Champion
55
No.1
R

Rick

California
Champion
44
No.2
A

Amaan Sayyad

Navi Mumbai, India
Champion
33
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

TransPaY

Making cross-chain payments as simple as Web2 payments.

Tech StackSolidity, Ethers, Web3, Next
Builder
CCipher Hex
DeFiInfra

Nskills

Nskills is a Stylus-first visual workflow builder for the Arbitrum ecosystem. Built from our learnings training 800+ Stylus developers, it helps teams move from prototype to production by letting them compose apps on a canvas (contracts, Orbit integrations, agents, analytics, x402 pay rails, security/perf blocks) and generate a skills repo that Claude/Cursor can use to produce a clean codebase with full context—reducing chaos, improving verification readiness, and accelerating mainnet + Orbit deployments.

Tech StackRust
Builder
AAbhishek Dubey
SocialFiInfraAI

Nskills

Nskills is a Stylus-first visual workflow builder for the Arbitrum ecosystem. Built from our learnings training 800+ Stylus developers, it helps teams move from prototype to production by letting them compose apps on a canvas (contracts, Orbit integrations, agents, analytics, x402 pay rails, security/perf blocks) and generate a skills repo that Claude/Cursor can use to produce a clean codebase with full context—reducing chaos, improving verification readiness, and accelerating mainnet + Orbit deployments.

Tech StackRust
Builder
AAbhishek Dubey
SocialFiInfraAI

Maxxit-Openclaw

Autonomous trading agents that prove their performance with ZK proofs and sell alpha signals to other agents via micropayments — fully trustless, fully private.

Tech StackNext, Solidity, Rust
Builder
MMeet Paladiya
DeFiAIRWA

PrimeVaults

PrimeVaults is an on-chain savings protocol built for stable yield. It features real-time, verifiable on-chain proof-of-reserves to protect principal, implemented as an upgraded ERC-4626 vault. Our Unified Yield Model optimizes risk-adjusted strategy allocation across chains, targeting base returns benchmarked above Aave V3 supply rates.

Tech StackReact, Vue, Web3, Ethers, Solidity, Node, Go
Builder
TTuan Le Thanh
DeFi

Chain.Love

Booking.com–style marketplace and payment layer for Web3 infrastructure services, designed for devs and AI agents

Tech StackSolidity, Web3, Next, Node, Go
Builder
SSergei Revenko
InfraAI

Stylend

Cross-chain lending protocol built with Arbitrum Stylus (Rust) and LayerZero. Supply collateral on Arbitrum, borrow on other chains like Base. Collateral stays on Arbitrum with isolated pools for risk

Tech StackArbitrum Stylus, Rust, LayerZero, Next, React, Arbitrum, Cross-chain, WASM
Builder
AAxel Urwawuska Atarubby
DeFi

Maxxit-Openclaw

Autonomous trading agents that prove their performance with ZK proofs and sell alpha signals to other agents via micropayments — fully trustless, fully private.

Tech StackNext, Solidity, Rust
Builder
MMeet Paladiya
DeFiAIRWA

Chain.Love

Booking.com–style marketplace and payment layer for Web3 infrastructure services, designed for devs and AI agents

Tech StackSolidity, Web3, Next, Node, Go, x402, MCP
Builder
SSergei
InfraAI

ChargeFrog⚡

A Stylus-Compiled Investor-Grade RWA Tokenization Engine for Community-Led EV Charging Infrastructure on Arbitrum.

Tech StackStylus (Arbitrum), RWA Tokenization, ERC-1400+ERC-3643 Dual Standard Security Tokens, ERC-1643 Legal Documents Anchoring, Hardware: EVSE, Firmware, OCPP Controller, ERC-1594 Validation + ERC-1410 Partitioning, ERC-1644 Regulatory Control (Reg CF, S, D), DIDit KYC Provider
Builder
JJimmy Tan Zhi Xuan
RWAInfra

ChainWard

ChainWard provides on-chain incident detection for Orbit. It records silent failures immutably, enabling auto-pausing bridges, enforced SLAs, and verifiable forensic proof of downtime.

Tech StackSolidity, Web3, Ethers, Node, Next, React
Builder
PPaschal Anierobi
InfraDeFiDAOOther

Hush

Brings private DeFi UX to Aave: shield funds, supply USDC, borrow WETH, repay, and withdraw back to private balance without exposing your strategy

Tech StackReact, Ethers, Node, Solidity, Vite, Foundry, Web3
Builder
MMike Krupin
DeFiOtherInfra
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