LayerZero is an immutable, censorship-resistant, and permissionless smart contract protocol that enables anyone on a blockchain to send, verify, and execute messages on any supported destination network.
1inch is a unified DeFi ecosystem, built around the DEX aggregator with the best swap rates.
Swap, hold & track digital assets - and ship scalable, secure applications with the complete Web3 stack.
1inch protocols access hundreds of liquidity sources across 12+ chains, including Solana, for secure trading at the best rates. Builders can unlock them all with 1inch Developer Portal: 17 APIs that bring you the technologies you need to scale.
The 1inch Swap API gives you optimized routes with the new Pathfinder algorithm; Fusion and Fusion+ are the building blocks of intent-based and cross-chain swaps, with MEV protection and zero gas fees as standard. The rest offer everything from spot price and node access to limit orders and dynamic gas pricing.
With complete usage statistics and API management, custom plan configuration, and a one-click Swagger UI - 1inch APIs and the Developer Portal give you the tools and adaptability you need to build your project.
Uniswap v4 introduces Hooks, smart contracts that let developers customize swap fees, liquidity logic, and trading behavior at the protocol level. We’re calling on builders to create with Hooks across stable-asset and volatile-asset markets, and to reimagine how liquidity and trading dynamics can evolve within the Uniswap ecosystem.
Prizes
💡 Uniswap v4 Stable-Asset Hooks ⸺ $10,000
🥇
1st place
$4,000
🥈
2nd place
$2,000 ×2
🥉
3rd place
$1,000 ×2
Build Uniswap v4 Hooks designed for stable-asset markets. Projects should explore novel applications of Hooks for synthetic lending, credit-backed trading, or optimized stable AMM logic.
Explore ideas, problem statements and resources in our Hacker Toolkit.
Qualification Requirements
A user interface is not required, but projects must provide clear evidence of functional code.
Each team must submit: TxID transactions (tesnet and/or mainnet) a GitHub repository, README.md, demo link or setup instructions, and a demo video (max 3 min).
Build Uniswap v4 Hooks designed for volatile asset pairs. Projects should explore innovative Hook logic that enhances liquidity resilience, mitigates Loss Versus Rebalancing (LVR), or improves capital efficiency for volatile asset pairs.
Explore ideas, problem statements, and resources in our Hacker Toolkit
Qualification Requirements
A user interface is not required, but projects must provide clear evidence of functional code.
Each team must submit: TxID transactions (testnet and/or mainnet), a GitHub repository, README.md, demo link or setup instructions, and a demo video (max 3 min).
Coinbase Developer Platform (CDP) is building tools to bring the world onchain. Our goal is to make it as easy to build onchain as it is to build online.
EVVM is a new way to create fully functional blockchains on top of existing chains, like Ethereum, Arbitrum, or any EVM-compatible chain, by deploying only smart contracts.
These Virtual Blockchains behave like independent chains but rely entirely on the host chain’s security and infrastructure. No new nodes, no validators, no bridging needed to transact with the 'host' chain, where the Virtual Blockchain is deployed.
Written entirely in Solidity, EVVM is easy to deploy, upgrade, and customize. Developers can launch a virtual chain in minutes without needing to set up any external infra. This makes it also ideal for experimentation, prototyping new L1 ideas, or launching purpose-specific chains: Banks, Institutions, Schools, Enterprises, Apps, Games, Metaverses, etc.
A unique feature of EVVM is its potential gasless transaction system. Users can submit signed transactions through any off-chain channel, like Telegram, WhatsApp, a website form, an SMS message, or an API, and the Enterprise can sponsor the execution, or even better, a decentralized network of Fishers (Relayers) will execute them on-chain in exchange for rewards, if the native tokenomics are activated. This enables smoother onboarding, mobile-native flows, and highly flexible interactions.
By allowing many virtual blockchains to run in parallel on a single host chain, EVVM introduces a new approach to vertical scalability for Ethereum. It opens a new design space for developers looking to go beyond traditional dApps, toward sovereign, infra-less, modular blockchain environments.
Chiliz, the creator of Fan Tokens, has launched its own Layer 1 EVM compatible blockchain. Chiliz Chain will become the leading infrastructure for sports, attracting teams, fans, and developers, to build web3 products and experiences that bring fans and brands together.
Oasis is a layer-one blockchain built to support confidential applications at scale. Oasis is home to Sapphire, the world's first confidential EVM network, Oasis Privacy Layer (OPL), a cross-chain privacy solution that can be used by any EVM dApp, and ROFL, a framework that adds support for offchain components to runtimes like Oasis Sapphire. With a unique layered architecture, Oasis presents the optimal building and execution environment for DeFi, AI, RWAs, Gaming, NFTs, DAO governance, and more.
Zircuit is a zk rollup with parallelized circuits and AI-enabled security at the sequencer level.Zircuit is a fully EVM-compatible ZK rollup with parallelized circuits and AI-enabled security at the sequencer level. Built by a team of web3 security veterans and PhDs in computer science, algorithms, and cryptography, Zircuit is backed by Pantera Capital, Dragonfly Capital, and Maelstrom.
If you have specific questions regarding our bounties or any technical issues, please reach out to us on discord: https://discord.com/channels/554623348622098432/1257837378387574835
Pyth Network is a public, decentralized data infrastructure designed to power the next generation of financial applications.
As the largest and fastest-growing first-party financial data layer for real-time asset price data, Pyth delivers over 1,000 low-latency price feeds across digital assets, FX, ETFs, equities, and commodities to more than 100 blockchain ecosystems. This robust infrastructure enables DeFi builders to create dApps that rival traditional financial apps in speed and performance.
Supported by leading financial institutions including the Cboe, Revolut, Two Sigma, and Virtu Financial, Pyth provides a unique opportunity for data providers to securely monetize their quote and trade data while contributing to the evolution of the digital asset ecosystem.
With decentralized architecture ensuring data integrity, security, and transparency, Pyth facilitates nearly a trillion dollars in total transaction volume across every major blockchain and hundreds of applications, serving as critical infrastructure for the global financial market.
Nethermind is a blockchain research and software engineering company empowering enterprises and developers worldwide to work with and build on decentralized systems. Our work touches every part of the blockchain ecosystem, from fundamental cryptography research, agentic AI, decentralized AI infrastructure, through security to application-layer protocol development. Nethermind is a core contributor to the development of Ethereum, and we are active builders of the Starknet ecosystem.
The ``Flare Time Series Oracle (FTSO) provides decentralized data feeds to the Flare network.
The Flare Data Connector (FDC) validates external data for Flare's EVM state (it's Web2Json attestation types can fetch arbitrary Web2 data). The Secure Random protocol generates a secure random number on-chain every 90 seconds.
The FAssets bridge XRP to Flare to use in smart contracts and build DeFi apps.
See more info on notion - https://flare-network.notion.site/Flare-Hackathon-Guide-ETHGlobal-Buenos-Aires-278d502e6fa680888c92c68b05bb615d
Prizes
🏆 MAIN TRACK: use protocols on Flare blockchain ⸺ $8,000
🥇
1st place
$5,000
🥈
2nd place
$2,000
🥉
3rd place
$1,000
Use protocols on Flare blockchain in an innovative and world changing way!
Build DApps utilising at least one of Flare’s Enshrined Data Protocols:
* FTSO (Flare Time Series Oracle) for price feeds.
* FDC (Flare Data Connector) for Web3 and Web2 data sources,
* Flare’s Secure Random Number Generator, or
* FAssets to build dApps that use FXRP (synthetic XRP on Flare) bringing non-smart-contract XRP into DeFi.
Qualification Requirements
DApps must make use of at least one of Flare's enshrined Data Protocols.
Dapps must address real-world problems, or cater to specific use cases to be impactful.
Add Feedback in the README describing your experience with building on Flare.
🎨 BONUS TRACK: external data source or cross chain application ⸺ $2,000
Up to 2 teams will receive $1,000
Most innovative external data source use case or most innovative cross chain application secured by Flare’s protocols.
Qualification Requirements
Show innovation by utilizing real world data in an on chain application.
If you are using an external data source, provide a link to it's API.
Can be combined with MAIN track or other bounties.
Hedera stands apart as a leading EVM blockchain through its distinctive developer experience. Developers of all backgrounds can leverage familiar tools like Solidity or SDKs in JavaScript, Rust, Python and more* to build breakthrough applications. It is powered by the hashgraph consensus algorithm which enables 10,000+ TPS, 3s finality, low fees priced in USD, and the highest grade (aBFT) of security.
--
*Hedera also has SDKs for Go and Swift!
Prizes
🤖 AI on Hedera ⸺ $3,500
🥇
1st place
$2,000
🥈
2nd place
$1,500
Build innovative applications, agents, tooling, or infrastructure that combine AI/ML (including LLMs and autonomous agents) with Hedera network services. The focus is on demonstrating novel AI‑blockchain integrations that create real utility for developers or end‑users.
Qualification Requirements
1. Utilise at least one Hedera service: Smart Contracts (EVM), Token Service, Consensus Service, Scheduled Transactions, or Mirror Node.
2. Incorporate AI in a material way e.g. Hedera Agent Kit SDK, Hedera Eliza Plugin, Federated Learning, AI Data Marketplaces.
3. Provide all source code in public GitHub repo(s)
4. Verify any smart contracts on Hashscan
5. Include a demo video (≤ 5 minutes) explaining what was built and how to run it
Optional enhancements earn extra points:
- Use multiple Hedera services
- Create high quality documentation / developer resources
Build and deploy innovative Smart Contract based applications on Hedera. The focus is on leveraging Hedera's EVM compatibility and integration into the Ethereum ecosystem.
Qualification Requirements
1. Deploy a Smart Contract on Hedera Mainnet, Testnet, or Previewnet using the Hedera EVM.
2. Verify all Smart Contracts on Hashscan
3. Provide all source code in public GitHub repo(s)
4. Include a demo video (≤ 5 minutes) explaining what was built and how to run it
Optional enhancements earn extra points:
- Use Oracles (Chainlink, Pyth, Supra) for real time price feeds
- Integrate Bridges (LayerZero, HashPort, Chainlink CCIP) for cross-chain interoperability
- Build with the HTS System Contracts for a hybrid EVM and Native Service application
- Native Hedera wallet flow (HashPack, Kabila, MetaMask Snap)
- Create high quality documentation / developer resources
The Overall Winner is the best project out of both AI and EVM tracks. See more detailed descriptions in the respective track's section above.
Qualification Requirements
For this track, you must qualify for either the AI on Hedera Track OR the Hedera EVM Track. See more detailed descriptions in the respective track's section above, including optional enhancements to earn extra points.
Avail is designed for a new era where users, dApps, and tokens can navigate the onchain economy at an unprecedented scale. With Avail, both users and developers gain access to the entire onchain economy from anywhere.
Avail frees developers from the constraints of specific tools, programming languages, or frameworks, allowing them to use the stack that best fits their project. Simply plug-in Avail to reach any asset on any chain, at any scale.
Polygon Labs is a Web3 software company developing Polygon Proof-of-Stake network, the premiere blockchain for payments and RWAs, and Agglayer, a protocol to connect any blockchain or app for a unified cross-chain experience.
Prizes
💸 Best Use of Agentic Payments on Polygon ⸺ $10,000
🥇
1st place
$3,500
🥈
2nd place
$2,500
🥉
3rd place
$2,000
🏅
4th place
$1,250
🏅
5th place
$750
We want to see projects building innovative payment projects using x402 and agentic tooling developed by Polygon deployed to the Polygon network.
We're looking for two kinds of projects:
1) Combining x402 with an AI / Agentic application
2) Projects that expand the x402 protocol: Privacy, Batching, Refunds / Fraud Management, Integration with 8004, Identity, etc.
Qualification Requirements
• Application deployed to Polygon Network
• A GitHub repository with README.md, demo link or setup instructions
• Demo Video
Circle’s stablecoins and full-stack development tools make it faster, easier, and safer to bring the benefits of blockchain to your business. Their suite of smart contracts, APIs, and SDKs are designed to get you off the ground quickly and securely. Circle’s bounty invites you to build real-world solutions with Circle's developer tooling with necessary qualification requirements below. Please be clear what bounty you are submitting for as a part of your submission!
Submissions will be evaluated based on the following parameters. Please be clear what bounty you are submitting for as a part of your submission!
* Functional MVP and diagram: Projects must demonstrate a working frontend and backend plus an architecture diagram.
* Video demonstration + presentation: Succinctly outlining the project's core functions and its effective use of Circle's Developer tools/tech is required, supported by detailed documentation.
* Link to GitHub/Replit repo
We help you implement blockchain faster, easier, and more cost effectively with our MultiBaas blockchain application server so you can concentrate on what really matters to your users.
Fluence is an enterprise-grade cloudless computing platform that frees users from dependence on centralized cloud monopolies. Open, decentralized and powered by top-tier data centers, it ensures high reliability while delivering up to 75% cost savings compared to traditional cloud platforms.
Saga is a protocol for automatically provisioning application-specific blockchains. We are building this by rearchitecting developer and end user interactions with blockchains. Using shared security, innovations in validator orchestration, and an automated deployment pipeline, Saga makes launching a dedicated blockchain, or Chainlet, as easy as deploying a smart contract.
Hyperlane is the permissionless interoperability framework connecting the modular ecosystem. With Hyperlane, anyone can connect any blockchain, rollup, appchain, on any VM. Additionally, Hyperlane’s modular security stack gives developers the power to customize their interchain security to their needs.
Prizes
🥇 Best Use of Hyperlane ⸺ $4,000
Up to 2 teams will receive $2,000
The grand prize will be given to the most compelling submissions made during the hackathon. It can qualify under any of the categories below, so be sure to read them to get some ideas!
Qualification Requirements
Get in touch with the Hyperlane team for more details! Join our discord to engage & get support.
🚝 Best Infrastructure ⸺ $4,000
Up to 2 teams will receive $2,000
This category is for building infrastructure that either enhances Hyperlane or makes use of Hyperlane's capabilities. Maybe you’ll build a customized Deploy tool to bundle ICA's and HWR's? Or perhaps you’d build a way to more easily connect chains with Hyperlane? Maybe you’ll build a tool to allow any chain to get access to oracle feeds from any chain? You decide!
Qualification Requirements
Get in touch with the Hyperlane team for more details! Join our discord to engage & get support.
🧩 Best Interchain App ⸺ $2,000
An interchain application is an application that communicates between different blockchains. It can either transfer assets or make interchain function calls. The winner of this prize will be the most impressive application that makes use of Hyperlane and benefits from its presence on multiple blockchains.
Qualification Requirements
Get in touch with the team for more details! Join our discord to engage with the team and get support.
Citrea is the first ZK Rollup that scales Bitcoin while preserving its security and decentralization. By ensuring on-chain verifiability and data availability directly on Bitcoin, Citrea makes it possible to build everything on Bitcoin. Citrea is fully EVM-compatible, which means that anyone can utilize smart contracts to build Bitcoin Applications, ₿apps.
With Clementine, Citrea’s trust-minimized bridge (1-of-N), Bitcoin’s trillion-dollar asset base can finally be utilized in DeFi and money markets, unlocking massive untapped liquidity. As Bitcoin’s execution layer, Citrea brings smart contracts to Bitcoin without needing any change its consensus or current form.
The Graph is a decentralized indexing and querying protocol for onchain data. It is the original decentralized data marketplace that introduced subgraphs, the most flexible way of indexing onchain data that builders can fully customize according to their needs. Subgraphs have become web3’s standard method of indexing and accessing onchain data.
Since its launch in 2018, thousands of builders have developed tens of thousands subgraphs across 40+ blockchains - including Ethereum, Base, Arbitrum, Optimism, Polygon, Celo, Fantom, Gnosis Chain, Avalanche, and more.
Symbiotic is the universal staking protocol enabling protocols to streamline decentralizing their stack. Symbiotic enables creating fully custom or templated staking integrations leveraging any asset and features such as slashing, redistribution, (liquid) restaking, as well as native staking. Over 40 teams including Hyperlane, Avail, and Manta are building on Symbiotic’s universal staking primitives secured by over $1bn in TVL.
0G is the largest AI Layer 1 ecosystem, powered by the fastest DeAIOS, and is bringing AI fully on-chain. It offers a scalable, secure, and developer-friendly platform for building and deploying decentralized AI applications. 0G’s modular and layered architecture, incorporating sharding mechanisms, ensures infinite horizontal scalability, making it ideal for handling the demands of AI workloads.
Octav is a blockchain data provider for digital asset managers.
We deliver reporting-grade metrics such as NAV, portfolio composition, transaction flows, and performance attribution, enabling hedge funds, protocols, and asset managers to operate with the same standards of accuracy and control expected in traditional finance.
Octav is trusted by over 150 of the worlds top digital asset managers including Golden Pear Capital, Lagoon, and Nayt.
vlayer is on a mission to connect the otherwise disconnected worlds of Web2 and Web3.
We are building a new category - verifiable data infrastructure. Our all-in-one infrastructure layer allows developers to extract, verify and integrate real-world data into Ethereum smart contracts, in the form of trustless claims.
Our technology is powered by state-of-art Zero Knowledge Proofs and optimised to provide the best developer experience.
Ronin is the #1 EVM-compatible gaming chain, and is expanding to a full-fledged consumer ecosystem. If you’re looking for real users to give you dApp a shot, you’re in the right place at the right time.
• Top gaming chain by real users with 800K MAU and a crypto native userbase
• Battle-tested distribution network spanning Southeast Asia, USA, and Latin America
• Easy mainnet deployment with robust developer tools and third-party infrastructure available
• Cult-like community that loves to experiment with new projects
• Possible grant and BD support from Sky Mavis, inventors of Axie Infinity and Ronin Network
Self Protocol is a privacy-first, open-source identity protocol powered by zero-knowledge proofs. It enables developers to verify users’ identity and humanity (Sybil resistance, age, country, sanctions checks) without exposing private data.
Now with Aadhaar support, participants can use Self to prove details like:
🙋♀️ Name
🔞 Age or age range
🚫 Not on the OFAC sanctions list
With just a few lines of code via the Self.xyz SDK, proofs can be verified onchain (Celo) or offchain. Build trust into your project while keeping user privacy intact.
The Ethereum Foundation is a non-profit that supports Ethereum. We work alongside the wider ecosystem to improve the protocol, grow our community, and advocate for Ethereum.
Rootstock is the top and longest running Bitcoin Sidechain, aiming to address the shortcomings of Ethereum by leveraging Bitcoin's unmatched stability, security, and economic power.
Rootstock uses Solidity programming language, making it fully EVM compatible. You can build any EVM dApps and products on Bitcoin using Rootstock without any additional tools or knowledge.
This is a unique opportunity to build the foundations bridges between Ethereum, Solidity and Bitcoin.
Privy makes it easy for anyone to build on crypto rails. We provide seamless user onboarding and powerful embedded wallet infrastructure, all in a single API. With Privy, you can onboard anyone with just an email or social login, while still supporting native wallets with full control. Whether you're building a consumer app or a DeFi tool, Privy helps you create self-custodial experiences with consumer-grade UX, while still offering the full power of onchain functionality.
Yellow is a clearing Network that uses state channels to facilitate trading and settlement through smart contracts and on-chain margin accounts. We are contributor of erc7824.org and looking for comments on our initiative. State Channels are a very powerful way to scale dApps in a chain agnostic way. Yellow leverage it to make trading fully non-custodial, cross-chain and infinitely scalable.
Prizes
💎 Yellow Prize Pool ⸺ $5,000
🥇
1st place
$2,500
🥈
2nd place
$1,500
🥉
3rd place
$1,000
Yellow is here to challenge you: explore the capabilities of ERC-7824 and the Nitrolite Protocol, whether by contributing to or building with the Yellow SDK.
Qualification Requirements
## Hackathon project requirements
- Integrate Nitrolite SDK: demonstrate the use of ERC-7824 in facilitating state channel mechanisms within your application
- Provide a Working Demo: submit a functional demonstration of your application, showcasing the integration
- Open Source Your Code: ensure your project’s codebase is publicly accessible for evaluation
The Ethereum development environment for professionals by Nomic Foundation.
Give the Hardhat 3 alpha a try: Rust rewrite, Solidity tests, multi-chain, and more.
ETHGlobal Buenos Aires
