Logo

Open House Archive

Welcome to the Open House Archive - your central repository for accessing all previous Open House buildathons and projects.

projects-banner

All Projects

By ProjectBy Buildathon
Learn
  • Explore Course
Build
  • Explore Buildathon
  • Project Archive
Hack
Hack Coming Soon
  • Explore IRL Hackhouse
  • How to Qualify
  • Past Events

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
60
No.1
R

Rick

California
Champion
44
No.2
D

DHRUV PANCHOLI

jaipur
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

FortiLayer

"Make Arbitrum the default execution layer for institutional capital by providing programmable, composable policy controls that enforce compliance on every on-chain transfer. FortiLayer turns Arbitrum

Tech StackSolidity, Rust, Web3, Ethers, React, Node
Builder
EEmin Karagöz
InfraDeFiDAORWA

bond.credit

The credit layer for the agentic economy.

Tech StackPython, Solidity, Typescript
Builder
NNathan Vandy
DeFiAI

Youtube Summarizer

Summarizes any youtube video by pasting the video URL

Tech StackJava, PHP
Builder
KKehinde Salawu
AI

Youtube Summarizer

Summarizes any youtube video by pasting the video URL

Tech StackJava, PHP
Builder
SSalawu Kehinde
AI

Providus

Providus is an institutional-grade risk engine that runs directly on-chain using Arbitrum Stylus. It computes Value at Risk (VaR) and Expected Shortfall (ES) — the same metrics banks use to evaluate portfolio risk without relying on a centralized server or a trusted oracle. The core breakthrough is a Log-Space Optimization that removes computationally expensive exponential functions from the Monte Carlo simulation loop. This makes 10,000-path simulations viable on-chain for the first time — something impossible on standard EVM due to gas constraints. Arbitrum Stylus (Rust → WASM) is the only execution environment where this works. The full product ships with: a live Protocol Stress Test Simulator (Aave V3, Maker, Compound presets), cryptographic on-chain proof generation, PDF report export, a developer API with tiered billing, API key management, webhooks, and a TypeScript SDK.

Tech StackRust, React, Web3, Ethers, Node
Builder
AAniekanabasi Umoh
DeFiInfra

Orinx

Orinx allows users to receive, hold, and send funds onchain while protecting their financial privacy.

Tech StackReact, Next, Vue, Web3, Ethers, Node, Solidity
Builder
SSanjana Gupta
DeFiInfraOther

Tipx

An on-chain & cross-chain tipping platform with rewards.

Tech StackNext, React, Solidity, Foundry, Circle BridgeKit (CCTP v2), Viem ENS Functions, express 5 & better-sqlite3, wagmi, viem & rainbowkit
Builder
PParry Sondhi
DeFiRWAOther

durations

ffwef

Tech Stack
Builder
Ffsdsdf fsd
DeFiRWA

Railbridge

Railbridge is a financial suite for x402 merchants. A complete merchant dashboard to track x402 revenue, API metrics, and unified account balance. Powered by cross-chain facilitator

Tech StackWeb3, Node, Next
Builder
MMarco Widjaja
DeFiInfraAI

Agent Multiverse

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

Tech StackNext, Solidity
Builder
FFrank hazard
InfraAIDeFi

RoboLend

Borrow WETH against tokenized equities on Robinhood Chain.

Tech StackSolidity, Next, React, Rust
Builder
MMintu Gogoi
DeFiRWA

FortiLayer

"Make Arbitrum the default execution layer for institutional capital by providing programmable, composable policy controls that enforce compliance on every on-chain transfer. FortiLayer turns Arbitrum

Tech StackSolidity, Rust, Web3, Ethers, React, Node
Builder
KKaptan
InfraDeFiDAORWA
  • Previous
  • 1
  • More pages
  • 37
  • 38
  • 39
  • More pages
  • 90
  • Next