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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

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

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

Apollos Finance

The Autonomous Hedge Fund System that Implement the Cross-Chain, LVR-Protected, & Linearized Yield Protocol.

Tech StackReact, Next, Web3, Ethers, Node, Solidity, Gemini AI, Chainlink
Builder
BBagas Rizki Gunardi
DeFiAIOther

ETour

I built the first 100% on-chain, ETH-in ETH-out (no new token), skill based competitive gaming platform. No tokens, no servers, no nonesense. https://etour.games/whitepaper

Tech StackSolidity, React, Web3, Ethers
Builder
EETour Games
GamingInfra

Formicarium

Formicarium is a decentralized platform where an AI agent coordinates a fleet of autonomous machines and robots to manufacture customized products.

Tech StackWeb3, Python, Solidity
Builder
NNejc Rožman
AIOther

Zeva

Zeva is an intelligent agentic system that manages your wealth on Arbitrum. We wanted to make DeFi as easy as sending a DM. With Zeva, you don't need to be a crypto expert to earn yield. You just tell Zeva what you want to do, and it executes the strategy for you. It’s secured by ZK-Email and your phone's biometrics, so you get the ease of a bank with the security of a hardware wallet.

Tech StackSolidity, React, Next, Web3, Node
Builder
SSeun Victor
InfraDeFiAI

Lion Yield Agent

Tech StackNext, Web3, Ethers, Solidity
Builder
NNim
DeFiAIOther

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 A
DeFi

project 87

AI DeFi bot on Arbitrum that grows USDC treasuries and lets agents spend rewards via API, user‑custodied.

Tech StackWeb3, Python, Ethers
Builder
JJovan Collins
RWADeFiAI

Snap'nInvest

Snap’nInvest lets users snap products and invest in tokenized stocks on Robinhood Chain.

Tech StackReact
Builder
TTekrox
SocialFiDeFi

aiSports - NBA Daily Fantasy

Web3 fantasy sports that feel like Web2 - stablecoin contests paid out onchain. Live on Arbitrum sepolia - contests running everyday. Fast & Friendly UX, and transparent payouts.

Tech StackReact, Solidity, Web3, Ethers, Node, Next
Builder
CCJ Carnicle
NFTGamingDeFiAI
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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