Web3 Hackathons to Join in May 2026: Open Applications & Key Details

May 2026 is one of the strongest builder months of the year. In-person sprints in Miami and Prague, privacy-focused online builds, Bitcoin-native challenges, and a growing wave of agentic AI events with on-chain components — the opportunities are spread across ecosystems, time zones, and skill levels. This guide covers every open application window.
Mezo Hack: Building Bitcoin’s Future

An online builder program focused on Bitcoin-native finance, with multiple tracks and a required testnet project submission.
Xapo Bank Institutional Brunch in Las Vegas

The Xapo Bank Institutional Brunch is a private gathering for institutional professionals attending BTC Las Vegas, focused on networking and Bitcoin-related discussions.
Bitcoin 2026 Unofficial Mixer

The Bitcoin 2026 Unofficial Mixer is a casual side event during Bitcoin Conference week, bringing together founders, investors, and professionals working across crypto, tech, and AI.
El Salvador Bitcoin Country Night

El Salvador Bitcoin Country Night is an invitation-only gathering in Las Vegas for Bitcoin founders, investors, and policy figures interested in El Salvador’s adoption path and wider ecosystem developments.
Bitcoin Vegas 2026 – The Bitcoin Power Suite Gathering

Bitcoin Vegas 2026 is an invitation-only executive reception at CHICA, aimed at senior industry leaders, policymakers, and infrastructure executives focused on Bitcoin policy and market infrastructure.
GM Podcast @ BTC

GM Podcast is a curated in-person interview series in Las Vegas during Bitcoin week, built for founders, executives, and investors who want a recorded long-form conversation alongside their conference schedule.
Bitcoin Capital Markets: Brunch at The Venetian

Bitcoin Capital Markets is a poolside brunch at The Venetian focused on institutional Bitcoin products, treasury strategies, and yield infrastructure. It is intended for investors, miners, allocators, and founders active in Bitcoin financial infrastructure.
Bitcoin Conference 2026 Afterparty Presented

A networking afterparty organized by EcoYield.ai during Bitcoin Conference 2026, aimed at founders, investors, and operators working across AI, agtech, and compliance technology.
BTC 2026 Las Vegas Cocktail Hour

A rooftop cocktail reception during BTC 2026 week, bringing together professionals from Bitcoin mining, energy, and AI/HPC.
₿ITCOIN TODAY PARTY

The ₿itcoin Today Party is a casual community meetup in Las Vegas for followers of the Today community and Bitcoin enthusiasts interested in informal in-person networking.
51% Hashrate Happy Hour

The 51% Hashrate Happy Hour is a small Bitcoin discussion event in Las Vegas focused on mining, protocol upgrades, and Bitcoin’s direction. It is intended for miners, developers, and researchers active in the Bitcoin ecosystem.
BCS Presents: BTCFi Mixer

The BTCFi Mixer is a Bitcoin 2026 side event in Las Vegas for builders, investors, and operators working on Bitcoin-backed spending, liquidity, and financial tools.
Edge x Zano Privacy Meetup → Bitcoin Conference Walk

The Edge x Zano Privacy Meetup is an informal pre-conference gathering focused on privacy, self-custody, and private Bitcoin usage, aimed at attendees heading to the Bitcoin Conference.
New Friendship Tech #BTCVEGAS2026

New Friendship Tech is an invite-style VIP mixer held alongside Bitcoin Vegas 2026, bringing together founders, investors, and operators from the Web3 and emerging tech space for focused networking.
Bitcoin House Presented

Bitcoin House is a BitAngels pitch and networking evening in Las Vegas on April 29, 2026, aimed at early-stage crypto, Web3, and AI founders meeting with angel investors and funds.
Base58 Work(shop)s a Happy Hour

Base58 Work(shop) marks five years of its hands-on Bitcoin education series with an informal happy hour for developers, educators, and technically curious Bitcoiners.
Invite Only: ABTC & Introduction.com Dinner

ABTC and Introduction.com are hosting a curated, invite-only dinner in Miami during Consensus Miami, aimed at founders, operators, and investors in the technology and crypto space.
Bitcoin Afternoon

Bitcoin Afternoon is a relaxed side event to the Nordic Blockchain Conference 2026, hosted by BTCX, with a talk on the company’s journey and a conversation on Bitcoin. It suits conference attendees and community members seeking an informal discussion setting.
HOTSTYLE TAKEOVER III

HOTSTYLE TAKEOVER III is a crypto-friendly social event in Las Vegas on April 27, 2026, suited for Web3 and Bitcoin community members.
Media Accelerator & Startup Cohort

Media Accelerator & Startup Cohort is a three-day side event in Las Vegas for early-stage Bitcoin and Web3 founders seeking investor access, media exposure, and funding opportunities during Bitcoin 2026.
BitGo’s High Roller Summit

The High Roller Summit is a by-invitation Bitcoin-focused event hosted by BitGo in Las Vegas, designed for institutional investors, builders, and senior professionals in the space. BitGo’s High Roller Summit
No Limit Hold’em Poker Tournament

A no-limit hold’em poker tournament held the night before Bitcoin 2026 at the Venetian Poker Room, open exclusively to Bitcoin 2026 conference attendees.
Chamber of Bitcoin: An Invitation – Only Evening for Business Owners in Vegas

Chamber of Bitcoin is a curated, invitation-only evening in Las Vegas for business owners and investors exploring Bitcoin’s role in real-economy operations and capital strategy.
BitcoinMondays Vegas

BitcoinMondays Vegas is a pre-conference networking evening in Las Vegas for Bitcoin founders, investors, and attendees arriving ahead of Bitcoin 2026.