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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

GaslessGuild

GasLess Guilds is a simple Arbitrum-powered dApp that lets communities reward participation on-chain with low fees, smooth onboarding, and reputation-based incentives.

Tech StackReact, Web3, Ethers, Arbitrum
Builder
DDavid Barasa
SocialFiDAO

Lucid

Intent Inheritance Protocol

Tech StackReact, Next, Web3, Java, Solidity, Rust, Arbitrum, Sepolia
Builder
JJoseph Cho
SocialFiDAOAI

Swoosh

Execute complex cross-chain transactions with natural language. Powered by AI and optimized routing all in Arbitrum + Orbit

Tech StackRust, React, Node, Railway, Chainlink CCIP
Builder
AAkan
DeFiAIInfra

Doba

Doba is an onchain audio streaming service.

Tech StackNext, Solidity, TypeScript, Alchemy Account Kit, LayerZero (OApp v2), Arbitrum One, Base
Builder
Nnjuguna
DeFiNFTRWASocialFi

Megamint

A transparent, on-chain lottery and giveaway platform that lets creators and projects engage their fans with fair, verifiable, and fun community experiences.

Tech StackReact, Ethers, Solidity, Web3
Builder
KKen Juniour
GamingNFT

LearnFi

学习不止打卡，时间即是资产。链上确权每一分钟，让努力都有价值回报。

Tech StackVue, Solidity, Ethers, Web3
Builder
Tting Su
NFTDAOOther

LearnFi

学习不止打卡，时间即是资产。链上确权每一分钟，让努力都有价值回报。

Tech StackVue, Solidity, Ethers, Web3
Builder
MMarch
NFTDAOOther

STARK zk Coprocessor

STARK zk coprocessor unlocks pure ZK scalability on Arbitrum. We achieve 2.1x gas savings and 40% faster finality by verifying raw STARK proofs directly via Stylus, eliminating the wrapping tax.

Tech StackRust, Solidity, Web3, Next, React, Ethers
Builder
Hhoddukzoa
Infra

GhostTX

GhostTx is an analytics suite for Arbitrum Stylus. Using Rust and WASM, it provides a real-time dashboard for contract telemetry, gas simulation, and performance benchmarking. Made for L2 developers.

Tech StackReact, Web3, Ethers, Rust, Arbitrum Stylus, WASM
Builder
KKellypek
InfraOther

Arbitrum No Code Agent Builder

Zero Coding Experience? Now Build Complex On-Chain Agentic Workflows with NO CODE! Simply Drag and Drop, and your agent is READY! Powered Completely By Stylus Contracts!

Tech StackNext, Ethers, Rust, Node
Builder
SSam Felix
AIInfra

Arbitrum No Code Agent Builder

Zero Coding Experience? Now Build Complex On-Chain Agentic Workflows with NO CODE! Simply Drag and Drop, and your agent is READY! Powered Completely By Stylus Contracts!

Tech StackNext, Ethers, Rust, Node
Builder
SSam Felix
AIInfra

ArbiFans

A creator monetization platform powered by the x402 payment protocol, enabling instant content access, seamless contract signing, and frictionless Web3 payments without wallet complexity.

Tech StackReact, Web3, Node, Solidity, Arbitrum
Builder
SStefaron Evan
SocialFiInfra
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