Arbitrum Open House NYC 🗽

A 3-week Buildathon for devs to:, ⚙️ Build with the same stack trusted by BlackRock and Robinhood, 🏆 Win $30K prize pool + follow-on grants, 🏠 Earn Founder House access

About

The next chapter of Arbitrum’s global builder journey arrives in New York City. Join a vibrant community of developers, founders, and innovators building the future of on-chain applications. Register now to take part in the Open House NYC Buildathon — learn, build, and showcase your project for a chance to join the global stage.

This hackathon has ended

Important Dates

Event Date

Jan 29 - Feb 19, 2026

Registration Deadline

Feb 19, 2026

Submission Deadline

Feb 19, 2026

Details

Prize Pool

30,000 USD