Avail logo

Avail

$10,000

availproject.org
availproject
Open page →

About

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.

Prizes

🌊 Build Unchained Apps with Avail Nexus SDK (General Track) ⸺ $4,500
🥇
1st place
$2,000
🥈
2nd place
$1,250
🥉
3rd place
$750
🏅
4th place
$500
For this track, devs are free to build anything, any dapp or usecase powered by Avail Nexus. Develop any innovative and efficient app across any vertical that seamlessly integrates the Avail Nexus SDK to share and transfer liquidity across chains. Example Ideas: - Unified gas refuel: “top up gas on X chain” or refuel for any token. similar to smolrefuel.com but with Nexus integrated and better pricing. - Intent playground: Visual Composer to drag/drop steps and simulate cost/latency before submitting - Intent explorer: Uses Nexus SDK intents and creates an explorer for navigating through a wallet’s intents. - A browser extension that allows you to spend unified eth to stake on Lido - An app that allows you to deposit unified USDC/USDT on the highest yield generating market on Aave/Morpho

Qualification Requirements

- README that clearly defines how Avail Nexus SDK is used - Meaningful use of Nexus SDK (nexus-core, nexus-widgets, or nexus-elements) - Show a demo of a crosschain intent interaction on the app. - Bonus points if you use Nexus SDK features like “Bridge & Execute” or “XCS Swaps” in the project.

🐳 Best DeFi or Payments app with Avail Nexus SDK ⸺ $5,000
🥇
1st place
$2,000
🥈
2nd place
$1,500
🥉
3rd place
$1,000
🏅
4th place
$500
This one is an interesting track for devs to experiment and innovate. If you’re building a project focused on DeFi, Payments, or agentic payments, then this track is for you! Integrate crosschain intents with Avail Nexus SDK into your app in a meaningful manner. Utilize powerful features like "Bridge & Execute", or "XCS Swaps (crosschain swaps)" to build your app. Rethink how DeFi or Payment rails are built. Build innovative solutions. Example Ideas: - Adaptive Yield Router: what if users can move their idle stables to best APY anywhere; weekly replace intents with checking all guardrails such as slippage, gas ceiling etc. At a click of a button by a user. - Payroll & Splits: Pay your team across any chain with any token. Abstract and consolidate funds from anywhere. - An app that allows you to deposit unified USDC/USDT on the highest yield generating market on Aave/Morpho - A browser extension that allows you to spend unified eth to stake on Lido

Qualification Requirements

Qualification requirements: - README that clearly defines how Avail Nexus SDK is used - Meaningful use of Nexus SDK (nexus-core, nexus-widgets, or nexus-elements) - Show a demo of a crosschain intent interaction on the app. - Bonus points if you use Nexus SDK features like “Bridge & Execute” or “XCS Swaps” in the project.

📝 Developer Feedback (Test our Docs) ⸺ $500
Up to 2 teams will receive $250
This is a special bounty for EthOnline builders! We want YOU, hackers, to test our docs. We want honest feedback! Test out the Avail Nexus SDK in your projects. Give us with any feedback as you try to build with it. If you feel like something is missing or hard to find on the docs, let us know! Add images, videos, anything to get the point across. Add your feedback to AVAIL_FEEDBACK.md in your submission repo.

Qualification Requirements

Hackers need to: - Go through the documentation of Avail Nexus SDK - Create a AVAIL_FEEDBACK.md file in your existing Project repo or create a new Github repo and provide the feedback in it. - Upload the screenshots or any supporting material to get the point across. - Make it as detailed as possible.

Resources

Avail Nexus Docs
https://docs.availproject.org/nexus/introduction-to-nexus
↗
Nexus Cheatsheet
https://docs.availproject.org/nexus/nexus-cheatsheet
↗
Nexus NextJS Starter Template
https://github.com/availproject/nexus-nextjs-template
↗
Nexus Vite Starter Template
https://github.com/availproject/nexus-vite-template
↗
Shadcn UI Elements - Nexus
https://elements.nexus.availproject.org/
↗
Nexus Core & Nexus UI Widgets Reference
https://docs.availproject.org/nexus/avail-nexus-sdk
↗
Project Ideas [CHECK THIS OUT]
https://avail-project.notion.site/ETHOnline-Avail-Nexus-Project-Ideas-289e67c666dd8009961effac6466f6b9?pvs=74
↗

Workshop

Build Unchained Apps with Avail

Access liquidity from across 12 chains in a few seconds with Avail.

This workshop is happening live

09:30 AM EDT — Wednesday, Oct 15, 2025

Blockscout logo

Blockscout

$10,000

blockscout.com
blockscoutcom
Open page →

About

Blockscout is an open-source explorer serving thousands of blockchains. Access a wide spectrum of onchain data and relevant metadata for your application and/or launch your own explorer in minutes to support any chain (yours included!). We provide an SDK, API, MCP for AI integrations, and the Autoscout self-launch platform for developers who are working with onchain data.

Prizes

🚀 Best use of Autoscout self-service explorer launchpad ⸺ $3,500
🥇
1st place
$2,000
🥈
2nd place
$1,000
🥉
3rd place
$500
Use Autoscout to launch a customizable explorer for your chain in 5 minutes! You will use Autoscout as a way to launch an explorer for your chain or related to your hackathon project. This will let you track transactions, access the API and more. Autoscout supports any EVM-based L1s and L2 rollups. To participate:

 1) Create an account: To get started, go to https://deploy.blockscout.com/, create an account, and login to get started. 2) Request credits in the EthGlobal Discord Channel. Share your email to request and we will top off your account for the hackathon. 3) Add a new instance. Click the Add instance button to get started and then add your network info. You can connect to any EVM-based chain or rollup with an available RPC. Configs and parameters are available in the docs.

Qualification Requirements

We will judge entries based on the overall project and use case. You can apply for this bounty with any project as long as you also use Autoscout to launch an explorer. Projects must use Autoscout and launch an explorer to be eligible for prize consideration.


📚 Best Blockscout SDK Integration ⸺ $3,000
🥇
1st place
$2,000
🥈
2nd place
$1,000
Integrate the new Blockscout SDK into your app and provide interactivity and instant explorer feedback to your users. Easy integration + valuable UI enhancements = best usage! Instructions on installation and usage available in the docs.

Qualification Requirements

To win this prize you need to use the new Blockscout SDK in a relevant way inside your project.

🤖 Best use of Blockscout MCP (Vibecode an app OR create a great prompt) ⸺ $3,500
🥇
1st place App | 1st place Prompt
$1,250 ×2
🥈
2nd place App | 2nd place Prompt
$500 ×2
Use Blockscout's MCP in various contexts to either Vibecode an app OR create a super prompt that helps with blockchain analysis. 1) Vibe Code an app with Blockscout! Use Blockscout’s MCP when creating your blockchain app. The MCP has multichain coverage and includes data on balances, tokens, NFTs and contract metadata.

Hook up the MCP to your preferred LLM and start finding contextual insights and incorporating these into your application. Example Ideas - App that tracks token balances across various lending protocols - An apple watch app that alerts you of whale purchases of certain tokens on different chains - App that displays transaction counts or other usage stats across multiple chains and timeframes. 2) Create a super prompt with Blockscout MCP for comprehensive blockchain analyses. Develop a prompt (for ChatGPT, Claude etc) that allows us to dig deep into blockchain data. We've developed some simple prompts like "Tell me about a specific transaction, or show me token approvals for this address", but we haven't developed many in-depth prompts yet. That's where you come in! We're looking for prompts that provide a full-account analysis, chain-of-custody research or other in-depth analysis. We should be able to run your reusable prompts in ChatGPT/Claude to get similar results for different accounts, transactions, or user operations.

Qualification Requirements

App prizes will be awarded based on overall idea, creativity, and interactivity with blockchain data via Blockscout. Prompt prizes will be awarded based on their generalizability, usefulness, and ability to produce impressive results with the MCP server.

Resources

Blockscout Documentation
https://docs.blockscout.com/
↗
PayPal USD logo

PayPal USD

$10,000

paypal.com
paypaldev
Open page →

About

PayPal is known for being at the forefront of digital commerce and now it’s opening the door for millions of merchants and customers around the world to pay (and be paid) their own way — whether in fiat, cryptocurrency, or even the PayPal stablecoin, PYUSD.

Prizes

🥇 Grand Prize (Best Overall Transformative Use of PYUSD) ⸺ $4,500
Awarded to the project that most convincingly demonstrates a powerful and scalable real-world use case for PYUSD. The winner will set a new benchmark for digital payments, showing how PYUSD unlocks unique value—whether by powering global remittances, revolutionizing commerce, or creating new economic opportunities. Each Project Submission will be judged by a panel of judges in accordance with the following criteria: (a) Functionality: How well does this Project Submission work? What is the quality of the code? (b) Payments Applicability: How effectively does the solution address real-world payment challenges? (c) Novelty: How unique is this Project Submission’s concept? (d) UX: How well does this Project Submission utilize PYUSD’s performance and unique proposition to create great UX for downstream users? (e) Open-source: Is this Project Submission open-source? How well does the Project Submission compose with other primitives in the ecosystem? (f) Business Plan: Is there a viable business that can be built in the future around this Submission?

Qualification Requirements

1. Submission must clearly demonstrate utilization of PYUSD (deployed on mainnet or testnet) 2. Project must be newly built and deployed. 3. Include a public code repo; if private, share access credentials 4. Submit a 2–4 minute demo video explaining and showcasing the project 5. Project must be original

🎖️ PYUSD Consumer Champion (Best Consumer-Focused Payments Experience) ⸺ $3,500
This prize recognizes the project that builds the most seamless and engaging consumer payment experience with PYUSD at its core. From streamlining cross-border settlements, to enabling microtransactions, programmable subscriptions, or “pay-as-you-go” economics, we want to see fresh ideas that push the boundaries of what’s possible in digital payments. Think outside the box—your solution should inspire new thinking for the entire PYUSD ecosystem. Each Project Submission will be judged by a panel of judges in accordance with the following criteria: (a) Functionality: How well does this Project Submission work? What is the quality of the code? (b) Payments Applicability: How effectively does the solution address real-world payment challenges? (c) Novelty: How unique is this Project Submission’s concept? (d) UX: How well does this Project Submission utilize PYUSD’s performance and unique proposition to create great UX for downstream users? (e) Open-source: Is this Project Submission open-source? How well does the Project Submission compose with other primitives in the ecosystem? (f) Business Plan: Is there a viable business that can be built in the future around this Submission

Qualification Requirements

QUALIFICATIONS AND REQUIREMENTS: 1. Submission must clearly demonstrate utilization of PYUSD (deployed on mainnet or testnet) 2. Project must be newly built and deployed. 3. Include a public code repo; if private, share access credentials 4. Submit a 2–4 minute demo video explaining and showcasing the project 5. Project must be original

🏅 PYUSD Possibilities Prize ( Most Innovative Use Case of PYUSD ) ⸺ $2,000
This award honors creative thinkers who push the boundaries of where and how PYUSD can be used in applications—whether social, gaming, education, finance, or something completely unexpected. This is all about thinking outside the wallet and uncovering new ways digital dollars can unlock value in apps and platforms. Whether it’s a beautifully designed wallet, a seamless onboarding journey, or something that goes viral within the community, this prize celebrates projects that put people first. Each Project Submission will be judged by a panel of judges in accordance with the following criteria: (a) Functionality: How well does this Project Submission work? What is the quality of the code? (b) Payments Applicability: How effectively does the solution address real-world payment challenges? (c) Novelty: How unique is this Project Submission’s concept? (d) UX: How well does this Project Submission utilize PYUSD’s performance and unique proposition to create great UX for downstream users? (e) Open-source: Is this Project Submission open-source? How well does the Project Submission compose with other primitives in the ecosystem? (f) Business Plan: Is there a viable business that can be built in the future around this Submission?

Qualification Requirements

1. Submission must clearly demonstrate utilization of PYUSD (deployed on mainnet or testnet) 2. Project must be newly built and deployed. 3. Include a public code repo; if private, share access credentials 4. Submit a 2–4 minute demo video explaining and showcasing the project 5. Project must be original

Workshop

PYUSD 101

Introduction to PYUSD and resources on building with PYUSD

This workshop is happening live

04:00 PM EDT — Tuesday, Oct 14, 2025

Hedera logo

Hedera

$10,000

hedera.com
hedera
Open page →

About

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 the world’s 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 hasSDKs for Java, Python, Rust, Go, and Swift!

Prizes

🤖 Best Use of Hedera Agent Kit & Google A2A ⸺ $4,000
🥇
1st place
$3,000
🥈
2nd place
$1,000
Create one or more agents using the Hedera Agent Kit that can send and receive A2A messages and, if appropriate, settle payments via AP2 using Hedera tokens. For example, an AI travel agent might negotiate bookings with other agents and pay with stablecoins.

Qualification Requirements

1. Multi‑agent communication — implement message exchange using the A2A standard. 2. Agent Kit integration — build your agents with the Hedera Agent Kit and its adaptors. 3. Open‑source deliverables — publish code and documentation; include a demo video illustrating agents negotiating via A2A/AP2 and settling on Hedera. Bonus points for using multiple Hedera services or advanced features like human‑in‑the‑loop modes.

🎨 Best Hedera x Lit Protocol Vincent Skill ⸺ $1,000
🥇
1st place
$1,000
🥈
2nd place
$0
This challenge asks builders to create a Vincent “skill” that uses Hedera services and Lit Protocol’s Vincent framework. Vincent provides secure agent identity, verifiable capability delegation and secure action execution via Lit’s threshold cryptography. The skill should use Hedera services such as EVM smart contracts, the Token Service or Consensus Service. Examples include automated staking strategies, token swaps or delegated payments.

Qualification Requirements

1. Use at least one Hedera service — EVM Smart Contracts, Token Service, Consensus Service, Scheduled Transactions, or the Hedera Agent Kit. Smart contracts must be verified on Hashscan. 2. Integrate Vincent — register your agent/app, define tools and capabilities, and use the Vincent SDK. 3. Deliverables — open‑source code in a public repo, a README explaining architecture and dependencies, and a demo video (≤ 5 minutes) showing how a user delegates permissions and the skill executes actions. Bonus points for using multiple Hedera services or cross‑chain integrations.

🔌 Best Plug‑In for Hedera Agent Kit ⸺ $1,000
The Hedera Agent Kit supports a plugin architecture that allows developers to add new tools and integrate third‑party services. This bounty rewards the most useful and well‑architected new plugin that introduces new capabilities. Plugins might wrap external APIs (e.g., DeFi protocols, data providers), simplify token operations, or provide analytics and monitoring.

Qualification Requirements

1. Follow the plugin architecture — your plugin must adhere to the Hedera Agent Kit’s plugin interface and be installable via npm or similar. 2. Provide clear documentation — include setup instructions, available tools and example usage. Explain how the plugin interacts with Hedera and any external services. 3. Demonstrate utility — build a small sample agent showing how the plugin is used. If the plugin interfaces with Hedera network services, ensure contracts are verified and transactions are signed appropriately. 4. Deliverables — publish the plugin code and example project under an open‑source licence, supply a README and a short demo video. Bonus points for interoperability with other agent ecosystems or for integrating real‑world data sources.

🔗 EVM Innovator Track ⸺ $4,000
Hedera’s EVM compatibility allows developers to write Solidity contracts while benefiting from fast finality and low fees. This bounty is about using cross‑chain and real‑world data to build innovative dApps. Example ideas include multi‑chain financing, cross‑chain auctions or data‑driven trading bots.

Qualification Requirements

1. Deploy and verify a smart contract on Hedera — use Hedera mainnet, testnet or previewnet; verify contracts on Hashscan. 2. Integrate oracles and/or bridges — consume external price feeds from Chainlink, Pyth or Supra, and/or use Chainlink CCIP, LayerZero or HashPort for cross‑chain transfers. 3. Use Hedera services where relevant — consider HTS System Contracts or the Token Service for hybrid native/EVM functionality. 4. Deliverables — provide open‑source code, a clear README and a demo video. Bonus points for combining multiple oracles/bridges, integrating Hedera wallet flows (HashPack, Kabila, MetaMask Snap), or offering a novel real‑world use case.

Workshop

Hedera Workshop: EVM, SDKs, and AI Agents

This workshop is a fast-track overview of building on Hedera. You will see examples of how to deploy Solidity contr...

This workshop is happening live

09:00 AM EDT — Tuesday, Oct 14, 2025

Artificial Superintelligence Alliance logo

Artificial Superintelligence Alliance

$10,000

superintelligence.io
asi_alliance
Open page →

About

Fetch.ai together with SingularityNET in the ASI Alliance is building an open, modular marketplace for autonomous AI agents. Developers can create agents that discover each other, connect to services and APIs, reason over knowledge, and act across chains, without needing niche domain expertise. The stack is UI-agnostic and designed for search, discovery, and dynamic connectivity. At its core, uAgents power autonomous behavior; Agentverse provides listing, hosting, and orchestration; and the Fetch Network secures identities, messaging, and execution. ASI:One offers a Web3-native LLM and Chat Protocol so people can talk to agents directly. SingularityNET’s MeTTa brings structured knowledge and reasoning giving agents real-world signals with provenance and privacy.

Prizes

🚀 Best use of Artificial Superintelligence Alliance ⸺ $10,000
🥇
1st place
$3,500
🥈
2nd place
$2,500
🥉
3rd place
$1,750
🏅
4th place
$1,250
🏅
5th place
$1,000
First Place – $3,500 Awarded to the team that shows the most effective and creative use of ASI:One for human–agent interaction, paired with MeTTa for structured reasoning. Judged on problem choice, solution quality, and real-world impact. Second Place – $2,500 Awarded to the team with the most impactful, well-presented launch on Agentverse. Your listing should be easy to find via ASI:One and clearly explain how MeTTa powers your logic. Judges look for usability, discoverability, clear purpose, and adoption potential. Third Place – $1,750 Awarded to the team that builds the most cohesive multi-agent system using Fetch.ai agents and MeTTa for shared knowledge and reasoning. We’ll evaluate how smoothly agents communicate, collaborate, and coordinate complex tasks across chains and environments. Fourth Place – $1,250 Awarded to the team that delivers the most innovative demonstration of agent collaboration within the ASI:One ecosystem. Judges will look for originality, technical depth, and potential for future scalability. Fifth Place – $1000 Awarded to the team with the most polished user-facing experience that makes advanced human–agent interaction intuitive and engaging. Judged on design quality, accessibility, and clarity of value to end users.

Qualification Requirements

1. Functionality & Technical Implementation (25%) - Does the agent system work as intended? - Are the agents properly communicating and reasoning in real time? 2. Use of ASI Alliance Tech (20%) - Are agents registered on Agentverse? - Is the Chat Protocol live for ASI:One? - Does your solution make use of uAgents and MeTTa Knowledge Graphs tools? 3. Innovation & Creativity (20%) - How original or creative is the solution? - Is it solving a problem in a new or unconventional way? 4. Real-World Impact & Usefulness (20%) - Does it solve a meaningful problem? - How useful would this be to an end user? 5. User Experience & Presentation (15%) - Is the demo clear and well-structured? - Is the user experience smooth and easy to follow? - The solution should include comprehensive documentation, detailing the use and integration of each technology involved.

Links and Resources

Fetch.ai
https://innovationlab.fetch.ai/resources/docs/intro
↗
Fetch.ai and SingularityNET's MeTTa Integration
https://github.com/fetchai/innovation-lab-examples/tree/main/web3/singularity-net-metta
↗
SingularityNET's Metta Knowledge Graph
https://metta-lang.dev/docs/learn/tutorials/python_use/metta_python_basics.html
↗
Agent Creation
https://innovationlab.fetch.ai/resources/docs/agent-creation/uagent-creation
↗
Agent to Agent Communication
https://innovationlab.fetch.ai/resources/docs/agent-communication/uagent-uagent-communication
↗
Introduction to Agentverse.ai
https://innovationlab.fetch.ai/resources/docs/agentverse/
↗
MCP Integration Example
https://innovationlab.fetch.ai/resources/docs/mcp-integration/what-is-mcp
↗
Agent Remote Communication and Discoverability
https://network.fetch.ai/docs/introduction/almanac/introduction
↗
ASI:One
https://asi1.ai/
↗
Agentverse MCP
https://docs.agentverse.ai/documentation/advanced-usages/agentverse-mcp
↗
Hackpack
https://fetch.ai/events/hackathons/eth-online-2025/hackpack
↗

Workshop

Artificial Superintelligence Alliance Worksho...

Join us for an introductory, hands-on session on building agents with the Fetch.ai tech stac and making them intell...

This workshop is happening live

03:00 PM EDT — Tuesday, Oct 14, 2025

Envio logo

Envio

$5,000

envio.dev
envio_indexer
Open page →

About

Envio is high-performance data tooling for blockchains. HyperIndex is an ultra-fast, multi-chain indexer with one-click hosted deployments. HyperSync is a raw blockchain data API that replaces RPC endpoints, delivering up to 2000x faster reads. Run pnpx envio init to scaffold an indexer in seconds and build real-time dapps or data-heavy workflows in minutes.

Prizes

🏆 Best Use of HyperIndex ⸺ $1,500
Awarded to the team that best demonstrates the creative use of HyperIndex, Envio’s high-performance, multichain indexing framework. We will look for clear schema design, optimized event handling, and meaningful data querying.

Qualification Requirements

Deployment to the hosted service (please reachout if you need production resources) Clear usage in your application

🏆 Best Use of HyperSync ⸺ $1,500
Awarded to the project that best utilizes HyperSync, Envio’s ultra-fast blockchain data layer, for real-time data access or analytics. Examples may include on-chain dashboards, alerting systems, or AI-powered analytics built on HyperSync data streams.

Qualification Requirements

Clear and meaningful usage of HyperSync Usage of one of the clients is highly recommended

🤖 Best AI + Envio Tooling Project ⸺ $1,500
Up to 2 teams will receive $750
For the most compelling AI-powered project that enhances or integrates with Envio’s data stack (HyperIndex or HyperSync). Examples: • AI-assisted tools for building or querying HyperIndex / HyperSync • AI-driven subgraph-to-HyperIndex converters • MCP servers or developer assistants using Envio’s APIs • Intelligent data pipeline generation or schema optimization 💡 Focus on AI as a helper or builder tool, not necessarily for analyzing blockchain data.

Qualification Requirements

Clearly demonstrate the use of Envio’s technology (HyperIndex or HyperSync). Where possible, deploy to Envio’s hosted platform.

🎨 Best Live Web3 dashboard ⸺ $500
Awarded to the team that builds the most impressive real-time Web3 dashboard powered by Envio’s data stack (HyperIndex and/or HyperSync) We’re looking for dashboards that don’t just visualize blockchain data, but bring it to life, whether that’s tracking protocol activity, monitoring on-chain metrics, surfacing wallet analytics, or presenting live ecosystem insights. Projects should demonstrate: • Real-time data powered by HyperSync or HyperIndex queries • Clear, intuitive visualizations of blockchain activity • Creative presentation or storytelling through data This prize celebrates teams who turn raw blockchain data into something that’s instantly understandable, dashboards that are as beautiful as they are informative.

Qualification Requirements

Clearly demonstrate the use of Envio’s technology (HyperIndex or HyperSync). Where possible, deploy to Envio’s hosted platform.

Resources

Site
https://envio.dev
↗
Docs
https://docs.envio.dev
↗
Showcase
https://docs.envio.dev/showcase
↗
Explorer
https://envio.dev/explorer
↗
Telegram bot tutorial
https://docs.monad.xyz/guides/indexers/tg-bot-using-envio
↗
Envio EthScaffold2 Extension
https://scaffoldeth.io/extensions
↗
HyperSync Query Builder
https://builder.hypersync.xyz/
↗
HyperIndex github
https://github.com/enviodev/hyperindex
↗
HyperSync Quickstart github
https://github.com/enviodev/hypersync-quickstart
↗
Intro to Envio & Multichain Indexing
https://www.youtube.com/watch?v=-sFCbIVVeRw&list=PLXzKMXK2aHh6jZYPY5-YIBzvMtUT3ajjI
↗

Workshop

Index, Query, Ship: HyperIndex + HyperSync Li...

Live coding, zero fluff. We’ll scaffold an indexer with pnpx envio init, deploy HyperIndex, and wire up a front end...

This workshop is happening live

11:30 AM EDT — Monday, Oct 13, 2025

Lit Protocol logo

Lit Protocol

$5,000

litprotocol.com
litprotocol
Open page →

About

Powered by Lit Protocol's programmable signing is Vincent, a scoped delegation platform enabling automated transactions cross-chain: EVM, Solana and native Bitcoin that is the focus for this prize. Teams use it to automate user transactions where the user still retains full control of the scope of the delegation to an app. This enables trustless automations: Cross-chain Portfolio Rebalancers, Automated Yield Farming agents, Meta-vault aggregators, Non-custodial Asset managements, Cross-chain Airdrop farming agents.

Prizes

🔥 Best DeFi automation Vincent Apps ⸺ $5,000
Up to 3 teams will receive $1,666
This track will award teams building novel DeFi/Prediction market automation applications using Vincent. Examples of apps we're looking for: Automated prop traders, Cross-chain Portfolio Rebalancers, Automated Yield Farming agents, Meta-vault aggregators, Cross-chain Airdrop farming agents, Agentic Polymarket bets, etc.

Qualification Requirements

Mandatory Deliverables: 1. Fully functional Vincent App (published on our Registry) that uses at least one DeFi ability, excluding simple uses of ERC20 Transfers. See Quick Start: https://docs.heyvincent.ai/app/quickstart 2. Vincent App should accept user deposits and perform automated transactions on behalf of its users 3. Demo video with a walkthrough from accepting user deposits to putting their capital to use via the Ability Bonus Points: 1. Building new DeFi Abilities like Prediction Markets (Polymarket), Perps (GMX, Hyperliquid), Yield Aggregators (Yearn, Beefy Finance), Lending Protocols (Compound) 2. Demonstrating cross-chain capability: Airdrop framing on various Bitcoin L2 and automated conversion into stables 3. Using Debridge or Across for user deposits or cross-chain swaps for balancing portfolios, etc- need to create a Vincent Ability for it

Resources

Vincent Docs
https://docs.heyvincent.ai/concepts/introduction/about
↗
Vincent App Starter Kit
https://github.com/LIT-Protocol/vincent-starter-app
↗
Vincent Ability Starter Kit
https://github.com/LIT-Protocol/vincent-ability-starter-kit
↗
Automatic Morpho Yield Optimizer App (Example)
https://yield.heyvincent.ai/
↗
Dollar Cost Averaging wBtc on Base App (Example)
https://dca.heyvincent.ai/
↗
List of existing Vincent Abilities
https://docs.heyvincent.ai/concepts/abilities/about
↗
Vincent Builders Quick Start
https://docs.heyvincent.ai/app/quickstart
↗

Workshop

Signing on Behalf of Users without Their Priv...

Come learn how users can delegate policy governed signing authority to your apps without handing over their private...

This workshop is happening live

02:00 PM EDT — Wednesday, Oct 15, 2025

Jobs

Pyth logo

Pyth

$5,000

pyth.network
pythnetwork
Open page →

About

Pyth Network provides real-time financial market data to smart contracts across over 100 blockchains. Developers can access high-frequency price feeds for crypto, equities, FX, and commodities, as well as request secure, verifiable random numbers using Pyth Entropy. At the event, hackers can leverage Pyth’s data feeds to power DeFi protocols, on-chain games, prediction markets, or any app that depends on accurate external data.

Prizes

⛓️ Most Innovative use of Pyth pull oracle (Price Feeds) ⸺ $3,000
🥇
1st place
$1,500
🥈
2nd place
$1,000
🥉
3rd place
$500
Use Pyth Pull oracle to power up you dapp. The prize will go to the top three teams with best and most innovative use of Pyth Price feeds. Please read the qualification requirements carefully.

Qualification Requirements

Qualification Requirements Your app should use Pyth price feeds via Pull method. The steps include. 1. Pull/Fetch the data from Hermes. (Check the links and Resources) 2. Update the data on chain using updatePriceFeeds method. 3. Consume the price. 4. You can run a price pusher too if you prefer traditional way of using oracles. (Optional) Please follow our comprehensive Pyth EVM guide to to integrate Pyth in less than 5 minutes.

🎲 Pyth Entropy Pool Prize ⸺ $2,000
Up to 2 teams will receive $1,000
Use Pyth Entropy to generate and consume random number on chains. Anyone can permissionless generate random number on-chain. This pool prize will be given to most Innovative apps to use Pyth Entropy.

Qualification Requirements

Your app should consume random number generated by Pyth. Please follow along the guides and Tutorials to get started. NOTE: To get qualified for this track, raise a PR in https://github.com/pyth-network/pyth-examples. You just have to submit the working code along with a detailed README of your project.

Resources

Pyth EVM guide
https://docs.pyth.network/price-feeds/use-real-time-data/evm
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Pyth Supported Price Feeds
https://docs.pyth.network/price-feeds/price-feeds
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Pyth Supported Chains
https://docs.pyth.network/price-feeds/contract-addresses/evm
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Pyth EVM API Reference
https://api-reference.pyth.network/price-feeds/evm/getPrice
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How to Fetch Price Updates
https://docs.pyth.network/price-feeds/fetch-price-updates
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EVM Error Codes
https://docs.pyth.network/price-feeds/error-codes/evm
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Pyth Dev Forum
https://dev-forum.pyth.network/
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Pyth's Hackathon Judging Criteria and Rubric - Price Feeds
https://pyth-network.notion.site/Hackathon-Judging-Criteria-1fb2eecaaac980019603d905057e2f84
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Pyth's Hackathon Judging Criteria and Rubric - Entropy
https://pyth-network.notion.site/Hackathon-Judging-Criteria-Entropy-2032eecaaac9808e9361cc6a7df2a649?pvs=73
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Workshop

All About Pyth

Want real-time, low-latency data for your dApp? Learn how to power your DeFi, gaming, or prediction market project ...

This workshop is happening live

10:30 AM EDT — Monday, Oct 13, 2025

Hardhat logo

Hardhat

$5,000

hardhat.org
hardhathq
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About

Hardhat is a development environment to compile, deploy, test, and debug your Ethereum software. Hardhat 3 introduces Solidity tests, performance critical components in Rust, multichain support across the board, OP Stack simulation, revamped build system, a modernized CLI and plugin system, and a lot more.

Prizes

👷 Best projects built using Hardhat 3 ⸺ $5,000
🥇
1st place
$2,500
🥈
2nd place
$2,500
Build your project using Hardhat 3 as the main Solidity testing and network simulation tool

Qualification Requirements

Usage of a Hardhat release 3.0.0*. Usage of Hardhat 2 releases won't qualify.

Jobs

Arcology logo

Arcology

$5,000

arcology.network
arcologyn
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About

Arcology is a high-performance blockchain with full EVM equivalency, designed for parallel execution to process multiple transactions simultaneously and power the next generation of scalable, high throughput decentralized applications.

Prizes

🚀 The Best Parallel Contracts ⸺ $5,000
🥇
1st place
$2,500
🥈
2nd place
$1,500
🥉
3rd place
$1,000
We’re looking for builders who can harness Arcology’s Parallel execution capabilities to create innovative, useful, and scalable smart contracts that push throughput to thousands of TPS and beyond.

Qualification Requirements

Criteria: * Effective use of Arcology’s parallel execution features * Creativity and originality of the project * Real-world scalability and developer impact Requirements: * No UI/UX required — focus on smart contracts and execution logic * Must include scripts to generate transaction batches for benchmarking * Project must deploy and run on Arcology DevNet

Workshop

Yellow logo

Yellow

$5,000

yellow.org
yellow
Open page →

About

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
Hey hacker, and welcome! 🙂 We know you’re excited — and so are we. 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

Yellow is a global Web3 ecosystem of products and services, building the infrastructure that lets developers create apps with Web2 speed and Web3 trust. At its core is the Yellow SDK - a high-performance, chain-agnostic toolkit powered by state-channel technology. It enables teams to build fast, low-cost, user-friendly dApps without heavy smart contract complexity or endless gas fees. Builders are already using the protocol across fintech, payments, trading, gaming, and marketplaces - and now, we need your help to onboard the next 1000 builders.

Resources

Documentation
https://erc7824.org/
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Workshop

Lighthouse logo

Lighthouse

$1,000

lighthouse.storage
lighthouseweb3
Open page →

About

Hackers can use Lighthouse's latest product https://1MB.io/ to create, trade and monetise data using data coins. We are looking for use cases where you bring in consumer or synthetic data to create and rewards contributors or agents with data coins. 1. Consumer data coin idea - Uber, Amazon data or any other aggregated via zkTLS from protocols like reclaim protocol https://reclaimprotocol.org/ and rewarding data contributors with data coins 2. Synthetic data - Synthetic data generated by agents in field of Crypto Trading, Prediction markets, with potential use of data coins to reward agentic usage Lighthouse storage and encryption to be used to store and encrypt data

Prizes

👨‍💻 Best Consumer DataCoin Created ⸺ $500
1. Consumer data coin idea - Uber, Amazon data, or any other useful consumer data aggregated via zkTLS from protocols like reclaim protocol https://reclaimprotocol.org/ and rewarding data contributors with data coins

Qualification Requirements

Must Launch a data coin on https://1MB.io/ Must store data via Lighthouse. Must integrate at least one live real-world dataset with proof/validation (e.g., zkTLS, API → DAO). Must deploy to Base, Polygon, ETH Sepolia or other supported networks. Must include a working demo (frontend) deployed on vercel, etc. Open-source code submitted via GitHub.

🤖 Best DataAgent Created ⸺ $500
Best DataAgent - Build interesting AI Agent use case where agents create synthetic data in field of Crypto Trading, Prediction markets, with potential use of data coins to reward agents for synthetic data creation, utilisation, monetisation or sharing with other agents.

Qualification Requirements

Must Launch a data coin on https://1MB.io/ AI Agent should be at core of how data is created Must store data via Lighthouse. Must deploy to Base, Polygon, ETH Sepolia or other supported networks. Must include a working demo (frontend) deployed on vercel, etc. Open-source code submitted via GitHub.

Resources

Create, Monetise and Trade Data Coins
https://1MB.io/
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How to create a data coin
https://docs.lighthouse.storage/lighthouse-1/how-to/create-a-datacoin
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Lighthouse docs for storage and encryption
https://docs.lighthouse.storage/
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Lighthouse Files
https://files.lighthouse.storage/
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Access Control Conditions Supported
https://docs.lighthouse.storage/lighthouse-1/how-to/encryption-features/access-control-conditions
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Workshop

Create Data Coin and Agent with Lighthouse

Learn to create DataCoins for consumer and agentic use cases using https://1mb.io/ and https://www.lighthouse.stora...

This workshop is happening live

10:30 AM EDT — Thursday, Oct 16, 2025

EVVM logo

EVVM

$1,000

evvm.org
rollamate
Open page →

About

EVVM let's anyone create Virtual Blockchains on top of any chain just deploying smart contracts. For this ETHGlobal Online hackathon we are going to use Ethereum Sepolia, where we'll deploy a testnet Virtual Blockchain for the hackers to test, use and work with. A faucet for MATE and ETH testnet tokens will be available for you to use on https://evvm.dev on Oct 10th. EVVM is a new way to create virtual blockchains on top of existing networks like Ethereum, Arbitrum, Hedera and others. In essence, it lets you spin up your own blockchain environment by simply deploying smart contracts instead of running a whole new network. This means you can have the benefits of a custom blockchain without the headache of managing physical infrastructure (no validators or dedicated nodes needed). Each EVVM instance runs as a set of Solidity contracts on a host chain and emulates core components of an independent blockchain, inheriting the security of the underlying chain. Think of it as a “blockchain within a blockchain” – similar to a virtual machine in computing, but for blockchains. Because EVVM is implemented entirely in Solidity, it’s easy for developers to deploy, customize, and upgrade their virtual blockchains. There’s no need to set up new nodes or consensus mechanisms – you deploy the EVVM contracts on a host chain, and that’s it. This infra‐less deployment approach lowers the barrier to experimenting with new blockchain ideas or tailored networks for specific use cases. EVVM unlocks a new realm of scalability and innovation for Ethereum and EVM-compatible ecosystems. Multiple EVVM instances can run in parallel on the same host chain, achieving vertical scalability by stacking virtual chains on one physical network. Developers can also use EVVM as a sandbox to experiment with new features or Ethereum improvements (like testing new opcodes or economic models) in an isolated environment, without affecting the main chain.

Prizes

🎣 Best New Relayer/Fisher Integration ⸺ $500
For the most creative project that captures or relays EVVM transactions or data from outside the chain. This category rewards hacks that leverage EVVM’s communication capability by using new "fishing spots" or relayer mechanisms outside the chain. Examples could include a Telegram or WhatsApp bot that lets users submit EVVM transactions via chat, an API service or browser extension that relays user actions to EVVM, a mempool scanner that picks up EVVM txs or anything useful you may create to surprise us. The goal is to showcase how EVVM transactions can be initiated from any medium (web apps, APIs, messaging platforms, IoT devices, etc.), demonstrating a truly seamless and accessible UX for blockchain interactions.

Qualification Requirements

The winner must create an integration that retrieves data from off-chain sources and brings it into an EVVM virtual blockchain.

⚡️ Most Innovative Use of EVVM’s Execution Function ⸺ $250
For the project that most creatively integrates EVVM's unique transaction execution mechanism, the "executor". For example, a Fisher/Relayer who executes transactions on the EVVM or a new EVVM Service that executes on behalf of users under certain circumstances. EVVM can decentralize transaction execution to its network of participants (Fishers/Relayers), Services, or third parties. These should validate user-signed payloads (to prevent reverts) and call EVVM contracts to process them when appropriate. This category invites hackers to be creative with their use of this "executor" model. We are looking for innovative ideas that enhance the EVVM execution flow or extend it in a novel direction.

Qualification Requirements

The winner must create an integration that uses the "executor" parameter on a realistic use case.

⭐️ Best Implementation of Asynchronous Nonces ⸺ $250
EVVM supports both synchronous and asynchronous transaction nonces for submitting transactions, and this prize goes to the hack that makes the cleverest use of async nonces specifically. Asynchronous nonces allow users to issue multiple transactions without waiting for each to complete (out-of-order execution with protection against replay). This feature can enable parallel transaction processing, user-defined ordering of operations, or optimistic interactions that don’t strictly sequence transactions. Hacks in this category might include a demonstration of payment batching, a game or application logic that relies on out-of-order commits, or tooling that manages async vs. sync nonce flows for developers. We will favor a project that clearly showcases why asynchronous nonces are powerful. E.g. achieving something that would be cumbersome or impossible with traditional sequential nonces. Implementations should highlight EVVM’s flexibility in transaction scheduling and how that can benefit dApp design or performance.

Qualification Requirements

The winner must create an integration that uses the async nonces on a realistic use case.

Resources

Quickstart for Devs
https://www.evvm.info/docs/QuickStart
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Complete Documentation
https://www.evvm.info/docs/intro
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EVVM Website
https://evvm.org
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Developers Group in Telegram
https://t.me/EVVMorg
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Front End for Testing
https://evvm.dev
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