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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

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
DeFiAIRWA

FlowForge

Personal AI DeFi agent: one place to design, deploy, and execute intelligent on-chain workflows through natural language.

Tech StackReact, Next, Web3, Ethers, Node, Solidity
Builder
DDarshit Bhalodi
DeFiAI

novax yield

Novax Yield tokenizes trade receivables on Arbitrum Sepolia, connecting Africa-Asia exporters with global investors. Exporters get immediate liquidity; investors earn 8-12% APY from verified invoices.

Tech StackReact, Web3, Ethers, Solidity
Builder
SSamuel Aleonomoh
DeFiRWANFT

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

Arbnomo

The first on-chain binary options trading dapp on Blockchain

Tech StackNext, Web3, Solidity, Supabase, Pyth Oracles, x402
Builder
AAmaan Sayyad
SocialFiGaming

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

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

RikuyApp

Rikuy — anonymous corruption reporting on a custom Arbitrum L3. ZK-proven identity, gasless UX, AI-validated evidence, immutable on IPFS. Solidity + Rust/Stylus contracts, 73 tests, live chain, real users in Bolivia. Whistleblowers stay anonymous. Evidence never disappears.

Tech StackSolidity, Rust, Web3, Node, Ethers
Builder
DDaniel Hidalgo
OtherDAO

Arbnomo

The first on-chain binary options trading dapp on Blockchain

Tech StackNext, Web3, Solidity, Supabase, Pyth Oracles, x402
Builder
AAmaan Sayyad
SocialFiGaming

FanDonor

We are addressing the issues of monetization of Real-World Assets. In this platform, creators can tokenize their art and accept donations.

Tech StackReact, Solidity
Builder
SSanthosh Nair
NFTRWASocialFi

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
Builder
Hhoddukzoa
DeFiInfra

ClawPay

From telegram tell your OpenClaw to order from any website - it creates a secure credit card on demand from crypto and pays for the order

Tech StackReact, Web3, Ethers, Node, Solidity
Builder
AAdil Husain
InfraAISocialFi
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