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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
M

Manjeet Sharma

india
Champion
16
No.1
R

Rick

California
Champion
16
No.2
D

DHRUV PANCHOLI

jaipur
Champion
15
No.3

Orlance

Arbitrum's Fixed Income infrastructure for tradable yield tokens, powered by automated rolling vaults and risk-free lotteries.

Tech StackNext, React, Web3, Solidity, AMM
Builder
FFerdinand Ramdhani

ZKperps

One-click for Private Perpetuals

Tech StackSolidity, React, Nextjs, circum
Builder
IIteoluwakisi Bello
DeFi

Swiftrail

SwiftRail is a gasless USDC checkout stack for Arbitrum Sepolia. Customers sign once with USDC permit and do not pay ETH gas. A relayer sponsors gas, takes a small fee, and settles net USDC to the me

Tech StackRust, Web3, Ethers
Builder
PPeter June
DeFiOther

ERP Platform + WorkProof

WorkProof is a Web3-powered ERP module built on Arbitrum One that transforms professional credentials into verifiable on-chain assets. It enables talent to mint Soulbound Tokens (SBTs) as immutable proof of their work experience, monetize their profiles through paid access passes with automatic royalties, and execute freelance service contracts with full payment guarantees via on-chain escrow. Built with Rust, Vue 3, and Solidity, it connects talent, companies, and validators in a trustless ecosystem where reputation has real economic value.

Tech StackVue, Rust, Solidity, Web3, Ethers
Builder
Lliderate.influye
DeFiSocialFiNFT

Swiftrail

SwiftRail is a gasless USDC checkout stack for Arbitrum Sepolia. Customers sign once with USDC permit and do not pay ETH gas. A relayer sponsors gas, takes a small fee, and settles net USDC to the me

Tech StackRust, Web3, Ethers
Builder
PPeter June
DeFiOther

Agent Multiverse

The trust layer infrastructure for AI agents onchain identity, registry, and economic primitives for the open agentic web built on Arbitrum .

Tech StackNext, Solidity
Builder
Hhazardkrypto
InfraAIDeFi

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 Gunardi
DeFiAIOther

ARBcfo

Permissionless treasury control plane for stablecoin and tokenized-asset operations: policy-enforced intents, oracle-based risk routing, approvals, and immutable onchain receipts.

Tech StackReact, Next, Web3, Node, Rust, Solidity, Arbitium stylus, Typescript
Builder
CCosmas Mandikonza
DeFiRWAInfra

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

ArbiLoop

ArbiLoop is an Arbitrum-native DeFi app for lending, borrowing, and loop strategies.It is non-custodial, automation-first, and focused on safer, more efficient DeFi management.

Tech StackNext, Node, Solidity, Javascript
Builder
AAryan Anand
DeFi

BlockOPs

BlockOps - A no-code AI-powered platform for building and deploying blockchain agents on Arbitrum. Users can create workflows via drag-and-drop or natural language (using AI) and automate transfers using Arbitrum Stylus smart contracts.

Tech StackNext, React, Rust, Node, stylus, Python
Builder
RRohan Mohanta
AIDeFiInfra

RealBot

Trustless DeFi trading agent verification using STARK proofs on Arbitrum Stylus. Generates browser-side STARK proofs of Sharpe ratio from real GMX V2 trades and verifies them on-chain — no trusted set

Tech StackWeb3, Next, Rust, DeFi, ARB, Solidity, Ethers
Builder
HHyeonSeung Oh
DeFiInfra
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