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 seamlessly unites multiple decentralized protocols, empowering users to perform efficient, user-friendly and secure operations in the Web3 space.
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1inch provides access to hundreds of liquidity sources across multiple blockchains. Its main components are the 1inch Aggregation Protocol, the 1inch Liquidity Protocol, the 1inch Limit Order Protocol and the 1inch Wallet – a fast and secure mobile application for storing, receiving, sending and swapping crypto assets.
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The 1inch Swap Engine, built on top of 1inch’s Aggregation Protocol and Limit Order Protocol, is a decentralized trading and matching system that connects DEX users with practically limitless liquidity. The 1inch Swap Engine executes trade orders using the Dutch auction model, providing more efficiency, flexibility and tunability than regular swaps or limit orders.
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Powered by the 1inch Swap Engine, Fusion mode enables users to swap tokens without paying any network fees and at the most favorable rates. In addition, Fusion mode offers users extra MEV protection. All swaps in Fusion mode are executed by resolvers – professional traders, who use the most sophisticated and efficient ways of protecting users’ swaps from MEV.
Building a mini app means you will get instant exposure to the 23 million World App users. All World App users already have an integrated wallet and free transaction fees on World Chain (part of the super chain). We will be working closely with teams that want to build a real app reaching millions of people this weekend.
To be considered for the Mini App bounties you MUST use any of the Minikit SDK commands found on our docs. Learn more: https://www.youtube.com/watch?v=QJ0htHP6lb0
Prizes
📲 Best Mini App ⸺ $17,000
🥇
1st place
$6,500
🥈
2nd place
$4,500
🥉
3rd place
$2,000
🏅
Honorable Mention
$1,000 ×4
Show us your best Mini Apps! Projects that build and deploy a Mini App using MiniKit are eligible for this prize.
Qualification Requirements
- build a Mini App with MiniKit
- integrate any of the MiniKit SDK Commands
- if your Mini App uses on-chain activity, deploy your contracts to World Chain
- your project must not be gambling or chance based
- proof validation is required and needs to occur in a web backend or smart contract
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
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://www.notion.so/flare-network/Flare-Hackathon-Guide-ETHGlobal-Cannes-204d502e6fa680d284e3e6d8df6f695d
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, enabling developers of all backgrounds to leverage familiar tools like Solidity or its JavaScript SDK* to build breakthrough applications.
Linux Foundation Decentralized Trust manages Hedera’s open-source codebase (as Project Hiero) including the hashgraph consensus algorithm which enables 10,000+ TPS, 3s finality, low fees priced in USD, and the highest grade (aBFT) of security. Meanwhile, the Hedera public network is governed by a diverse council of world leading institutions to ensure transparent and fair decision-making.
By empowering the development of applications that solve real-world challenges across DeFi, tokenization, AI, digital identity, and more, Hedera is the trust layer that underpins a decentralized future.
For more information, visit www.hedera.com, or follow us on X at @hedera, Telegram at t.me/hederahashgraph, or Discord at www.hedera.com/discord. The Hedera whitepaper can be found at www.hedera.com/papers.
*Hedera also has SDKs for Java, Python, Rust, 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 a Web3 infrastructure layer designed to enable modular execution layers to scale and interoperate in a trust-minimized way. Avail is built to serve as the unification layer that coordinates interoperability and liquidity across the rollup-centric future.
Flow is a layer one blockchain with a powerful smart contract language (Cadence) and full EVM equivalence (any Solidity, smart contract, or protocol that works on Ethereum or an EVM L2 works on Flow). The network was designed from the ground up to enable consumer crypto applications that scale to mainstream audiences and seamlessly connect to digital ecosystems. It is based on a unique, multi-role architecture, and designed to scale without sharding, allowing for massive improvements in speed and throughput while preserving a developer-friendly, ACID-compliant environment.
Flow has been architected with a clear vision for the future of consumer crypto, and meticulously designed to address the shortcomings of earlier blockchains to ensure scalability, usability, and efficiency are not simply an afterthought. By incorporating critical protocol-level primitives, such as account abstraction and on-chain randomness, as well a powerful transaction model and scalability without sharding, Flow sets itself apart as a blockchain made for those interested in building apps for widespread adoption and developer-friendly innovation.
Prizes
🚀 Best Killer App on Flow ⸺ $6,000
🥇
1st place
$3,500
🥈
2nd place
$1,500
🥉
3rd place
$1,000
Consumer-oriented “killer apps” have the power to define and lead entire industries by solving real user pain points at scale—think of how ChatGPT made AI accessible to hundreds of millions. Flow is designed for mass adoption and consumer-grade experiences, so we’re looking for the next breakthrough application that can capture the interest of millions (or billions!) of everyday users.
This is a very broad bounty and eligible projects include everything from AI Agents and RWA to games and social apps.
Qualification Requirements
• Deploy a smart contract or run transactions on Flow Testnet or Flow Mainnet
The future of DeFi is cross-chain and Flow is ready to be at the center of it. This prize is for the most compelling projects that unlock cross-chain DeFi on Flow, whether it’s bridging liquidity, creating cross-chain yield strategies, or inventing seamless UX between Flow and other EVM ecosystems.
We want to see projects that:
• Bridge liquidity between Flow and other chains
• Integrate Flow into cross-chain DeFi protocols
• Invent new primitives that rely on multi-chain flows of assets or data
Build the next generation of DeFi that breaks silos and brings Flow into the global liquidity network.
Qualification Requirements
• Deploy a smart contract or running transactions on Flow Testnet or Flow Mainnet
• Your submission must showcase a meaningful cross-chain DeFi use case
Polygon Labs is a software development company building and developing a network of aggregated blockchains via the AggLayer, secured by Ethereum. As public infrastructure, the AggLayer will bring together user bases and liquidity for any connected chain, and leverage Ethereum as a settlement layer. Polygon Labs has also contributed to the core development of several widely-adopted scaling protocols and tools for launching blockchains, including Polygon PoS, Polygon zkEVM, and Polygon Miden, which is in development as well as Polygon CDK.
Circle's developer platform gives you the tools to integrate USDC and blockchain-based payments into your application, with a suite of smart contracts, APIs, and SDKs designed to get you off the ground quickly and securely
Prizes
🏆 Build a Multichain USDC Payment System ⸺ $4,000
🥇
1st place
$2,500
🥈
2nd place
$1,500
Build an application that enables multichain USDC payments and payouts using Fast Transfers from CCTP V2.
* Please note that CCTP V2 currently supports Avalanche, Arbitrum, Base, Ethereum, Linea, Sonic
* Bonus points if CCTP V2 hooks are used
Example Use Cases
-> Liquidity Provider Intent System - Enable liquidity providers to send and receive USDC across multiple chains.
-> Multichain Treasury Management - Help businesses manage USDC balances across multiple chains
-> Universal Merchant Payment Gateway – Implement a multi-chain checkout system for merchants to accept
-> USDC payments across various blockchains which rebalance to desired chain via CCTP V2.
Qualification Requirements
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
🏆 Enable end users to pay for gas using USDC ⸺ $2,000
Develop an application that enables users to pay network fees in USDC instead of native tokens by leveraging Circle Paymaster.
*Please note that Circle Paymaster currently supports Arbitrum, Avalanche, Base, Ethereum, Optimism, Polygon and Unichain
Example Use Cases
-> DeFi Protocols - Enable USDC as the default gas payment token for transaction activitiy in dApps like Lido, AAVE, etc.
-> Simplified transactions - Make it easier for users to perform transactions in USDC or other tokens while network fees are paid from their USDC balance.
Qualification Requirements
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
Leverage Circle Wallets and the Gas Station feature to create a fully gas sponsored user experience.
Qualification Requirements
* 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
🏆 Build a Smart Wallet with Dynamic Security Controls ⸺ $2,000
Leverage Circle Wallets and the Compliance Engine feature to implement dynamic security controls for USDC transactions.
Example Use Case
-> Risk-Based Authentication - Implement dynamic authentication where transactions require passkey authentication and implemented risk policies.
Qualification Requirements
* 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
Walrus is a next-generation decentralized storage network for unstructured data and rich media content such as large text files, videos, images, and audio. Leveraging innovations in erasure coding, Walrus offers exceptional data availability and robustness with minimal replication overhead for cost efficiency. Powered by Sui as the coordination layer, Walrus scales to hundreds or thousands of networked decentralized storage nodes without compromising performance.
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.
Self lets you verify your identity seamlessly and securely.
🙋♀️ Prove your name.
🇺🇳 Prove where you’re from.
🛂 Prove your passport number.
🔞 Prove your above a certain age.
🚫 Prove you’re not on the OFAC sanctions list.
Prove it all, on-chain or off-chain without sharing any private information with third parties.
Privy is customizable wallet infrastructure that helps developers build secure and scalable user-friendly apps on crypto rails with low-level APIs and end-to-end SDKs.
Prizes
🏆 Best Consumer App Built on Privy ⸺ $1,700
For the app that best showcases what’s possible when crypto fades into the background. This prize goes to the most compelling user-facing experience, something your non-crypto friends would actually want to use. Think intuitive design, smooth onboarding, and a clear user benefit.
Qualification Requirements
- Must be built using Privy's APIs or SDK
- Must use Privy for embedded wallet auth and management
- Should be a consumer-facing product (not infra or dev tooling)
- Must not involve gambling, wagering, or games of chance
🪙 Best App Using Stablecoin Built on Privy ⸺ $1,650
This prize celebrates the most creative and useful application of stablecoin. Whether it’s payments, tipping, yield, or programmable finance, we’re looking for apps that showcase stablecoin as intuitive, scalable money rails.
Qualification Requirements
- Must be built using Privy's APIs or SDK
- Must use Privy for embedded wallet auth and management
- Must incorporate stablecoin functionality (transfers, payments, balances, etc.)
- Must not involve gambling, wagering, or games of chance
For the sharpest onchain trading experience, whether it’s bots, dashboards, signal tools, or swap interfaces. This prize goes to the project that makes interacting with markets smarter, faster, or more user-friendly.
Qualification Requirements
- Must be built using Privy's APIs or SDK
- Must use Privy for embedded wallet auth and management
- Must involve onchain trading, swapping, or market data interaction
- Must not involve gambling, wagering, or games of chance
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.
The Ethereum development environment for professionals by Nomic Foundation.
Give the Hardhat 3 alpha a try: Rust rewrite, Solidity tests, multi-chain, and more.
Mantle is a high-performance Ethereum layer-2 network built with modular architecture delivering low fees and high security. Builders can leverage Mantle’s unique design to build dApps with exceptional UX, all while relying on Ethereum’s unrivaled security.
Mopro is a developer-friendly toolkit that makes building native mobile apps simple and efficient.
We believe native apps offer better performance and user experience than browser-based solutions, and we’re here to remove the friction of mobile development.
Mopro provides:
🚀 Easy-to-use CLI tools
🧱 Ready-to-go templates
📚 Helpful documentation
No need to be a mobile expert—just focus on your idea.
We initially support zero-knowledge (ZK) proof systems including: Circom, Halo2 and Noir. Using UniFFI, you can also bring in any Rust crate and define the functions you want to run natively on mobile.
Tap into native mobile capabilities—such as biometrics , GPS 📍, NFC 💳, camera 📸, photo gallery 🌅, Bluetooth 🛜, push notifications 🔔, and more—to expand what Web3 apps can do beyond the browser.
Let’s redefine what’s possible on mobile!
Prizes
🥷🏻 Best use of ZK on Mopro ⸺ $5,000
Up to 4 teams will receive $1,250
Build a mobile-native ZK app using Mopro. We’re looking for projects that showcase seamless, user-friendly experiences that bring ZK into everyday mobile use.
You’re free to choose any ZK circuit language—Circom, Halo2, Noir, or others—and any ZK protocol, such as Semaphore, MACI, zkEmail, Self Protocol, zkTLS, etc.
Your app can be built in Swift, Kotlin, React Native, Flutter, or any other mobile framework. The only requirement is that the ZK proof must be generated client-side.
Surprise us with your creativity—and show how ZK can feel invisible yet powerful to users.
Qualification Requirements
- Generate mobile-native bindings (iOS/Android) using the Mopro SDK.
- All ZK proofs must be generated directly on the client (mobile device). Relaying proofs from a backend/server is not eligible.
- You may build on top of an existing mobile app (e.g., Self Protocol), but must contribute new code to the mobile-native layer (Swift, Kotlin, React Native, Flutter, etc.).
- Apps that generate ZK proofs through embedded webviews or browser-based contexts are not eligible.
- Your app should be run on an iOS or Android simulator or physical device.
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.