ETHGlobal Hackathon Guide: Projects, Prizes and Expectations

An ETHGlobal hackathon is an Ethereum-focused developer competition where participants build decentralized applications, receive technical mentorship and compete for ecosystem-sponsored prizes. ETHGlobal events connect developers, companies and blockchain communities through practical collaboration. This guide explains project expectations, participation rules, ETH staking, development technologies, prizes and upcoming events.

Key Takeaways

• ETHGlobal hackathons support Ethereum developers through technical mentorship, onboarding sessions, networking and hands-on project development.

• Teams can include up to five participants, with individual applications and staking requirements where applicable.

• ETHGlobal hackathons are free, and participants who meet project submission conditions are eligible to recover their full ETH attendance stake, usually within four weeks.

• Foundry, Account Abstraction, Layer 2 networks and modular blockchain infrastructure are useful technologies for developing hackathon projects.

• ETHGlobal Mumbai is scheduled for November 5–7, 2026, following ETHGlobal Tokyo in September.

What Is an ETHGlobal Hackathon?

ETHGlobal hackathons are organized events designed to strengthen developer communities and accelerate experimentation with new technologies.

Supported by a world-class ecosystem of blockchain partners, these competitions bring together Ethereum developers, startups, technical mentors and industry professionals, including contributors associated with the Ethereum Foundation.

Builders bring ideas, form teams and create working applications within a limited development period, often around 36 hours at physical hackathons.

Projects typically focus on decentralized finance, artificial intelligence, privacy, digital identity and onchain finance.

Participants also develop new skills through workshops, technical discussions and networking with potential collaborators.

ETHGlobal Events: Upcoming Dates and Locations

ETHGlobal conducts physical hackathons, online competitions, technical workshops and ecosystem conferences.

The ETHGlobal events calendar identifies the following scheduled and recent events as of October 19, 2026.

The Ethereum Stablecoin Summit focuses on stablecoins and payment infrastructure rather than following the standard hackathon format.

Developers should confirm application deadlines, physical attendance requirements and venue information before registering.

How to Join an ETHGlobal Hackathon

ETHGlobal considers hackathon applications individually, including applications from developers who intend to participate as a team.

Registration and Team Formation

Participants can create a project independently or collaborate in teams of up to five people.

The registration process generally involves:

1. Create an ETHGlobal account and submit an individual application.

2. Join an existing team or create a new one.

3. Connect with other attendees through the Discord #find-a-team channel.

4. Participate in team formation calls and onboarding sessions.

5. Complete any required ETH stake to confirm attendance.

Each team member must satisfy the applicable registration and staking requirements individually.

Participants accepted for in-person events are generally expected to be physically present.

ETH Staking and Refund Requirements

Some ETHGlobal events require accepted participants to stake a small amount of ETH as confirmation of their commitment.

The full attendance stake is recoverable after successful project submission, provided the participant meets the applicable event conditions.

ETHGlobal's staking and attendance guidance describes the process:

• Stake ETH to secure participation.

• Attend the hackathon and complete the project.

• Submit the project through the Hacker Dashboard.

• Receive the eligible stake refund, usually within four weeks after the event.

Participants unable to attend can contact ETHGlobal about refunds or exceptions. The exact conditions depend on the event.

ETHGlobal Hackathon Projects: Ideas and Development Technologies

ETHGlobal projects commonly combine existing blockchain services, developer frameworks and new applications to solve practical problems.

Foundry, Account Abstraction and Layer 2 Networks

Foundry is a widely used Ethereum development framework and a common choice for hackathon projects, although ETHGlobal does not require every team to use it.

Developers use Foundry to write, test and deploy Solidity smart contracts efficiently.

Account Abstraction improves the user experience of decentralized applications by enabling features such as transaction sponsorship, flexible authentication and programmable wallet behavior.

L2 networks and modular chains are often practical choices because they can reduce gas costs and improve development speed.

Teams should select supported networks, test deployment requirements and optimize their DeFi technology stacks for speed, security and modularity.

AI Agents, DeFi and Real-World Utility

Projects involving autonomous agents and practical real-world applications align with several prominent ETHGlobal development themes, although no technology guarantees favorable judging.

For example, autonomous AI agents can coordinate cross-chain swaps or manage treasury assets through controlled smart contract interactions.

Other project ideas include dynamic liquidity providers, zero-collateral credit models and privacy-preserving DeFi applications.

Developers should evaluate technical feasibility, regulatory considerations and security risks, particularly when financial data, users' money or cryptocurrency exchange services are involved.

ETHGlobal Prizes, Mentorship and Submission Rules

ETHGlobal hackathon prizes vary by event, sponsor and development track.

For example, ETHGlobal Tokyo 2026 advertised $75,000 in available prizes, including ecosystem-sponsored awards.

Projects integrating sponsor SDKs, APIs and blockchain infrastructure may qualify for specific prize tracks when they satisfy sponsor requirements.

Mentorship and Project Feedback

ETHGlobal provides technical mentors to help participants troubleshoot implementation problems and improve project architecture.

Developers can request guidance through designated Discord channels, participate in onboarding workshops and attend feedback sessions.

These resources help teams improve their understanding of unfamiliar technologies before submitting their projects.

Submission Guidelines

Participants must submit their projects through the Hacker Dashboard before the stated deadline.

Submissions generally require a project description, source code and supporting demonstration materials.

A clear demo video helps judges understand the project's purpose, technical implementation and practical value.

Late submissions are not accepted under standard ETHGlobal rules.

Teams should also check whether their event permits pre-existing code. ETHGlobal Tokyo 2026, for example, introduced options for extending existing open-source projects.

How Gate Can Help

Developers participating in Ethereum hackathons can use Gate Web3 to explore supported blockchain networks, wallets and decentralized applications.

When testing smart contracts, teams should verify network compatibility, contract addresses, transaction permissions and gas costs.

A separate development wallet with limited funds can reduce exposure when experimenting with unfamiliar protocols or integrating third-party services.

Conclusion

ETHGlobal hackathons give developers a structured environment to build Ethereum applications, test new technologies and compete for ecosystem prizes.

Successful participation depends on clear project planning, suitable development tools, technical collaboration and timely submission.

Although autonomous agents, modular infrastructure and DeFi applications offer promising project directions, judging criteria and prizes depend on individual events. Participants should verify current requirements before applying.

Frequently Asked Questions

Is ETHGlobal hackathon participation free?

Yes. ETHGlobal hackathons are generally free for accepted participants. Some events require a refundable ETH attendance stake, which is separate from an admission fee.

Is the full ETH stake returned after submitting a project?

Yes. Participants who satisfy the applicable project submission requirements are eligible for a full return of their attendance stake, usually within four weeks after the event.

Is Foundry required for ETHGlobal hackathons?

No. Foundry is a commonly used Ethereum smart contract development framework, but participants can select other permitted development tools.

Why are L2 and modular chains useful for hackathon projects?

L2 and modular blockchain infrastructure can reduce transaction costs and support faster experimentation, making them practical choices for time-limited development.

What types of projects can win ETHGlobal prizes?

Projects demonstrating originality, technical execution, usability and compliance with sponsor requirements may qualify for prizes. AI agents, DeFi protocols and applications with real-world utility are among the relevant development categories.