MetaMask Card Dev Cook-Off
Build the Future of Onchain Payments with the MetaMask Card, LI.FI and USDC
Register Countdown
40,000 USD
Available in Prizes
Description
The MetaMask Card Hackathon is designed to inspire developers, designers, and innovators to build innovative applications that integrate the MetaMask Card, LI.FI, and USDC. This event aims to bridge the gap between traditional finance and decentralised ecosystems, promoting solutions that enhance user experiences, financial accessibility, and on-chain utility.
Select participating developers will have the opportunity to record their project demo and receive a professionally produced video at the Circle Dev Summit Cannes, with Circle and MetaMask helping amplify the video and project post-event.
About Prize Pool & Tracks
Go to the Prize & Judge session for more details
Track 1: Smart Agents & Liquidity Automation - $6k
Build smart agents and automation systems (onchain bots, workflows, or smart contracts) that handle spending, rebalancing, and real-time liquidity management across chains. Ideal solutions optimize rewards, credit usage, or card top-ups with minimal user input.
Track 2: DeFi-Driven Card Utilities - $6k
Create DeFi tools that boost the utility of card-linked assets. Think allocation, protocol routing, or trustless credit lines. Explore how composable DeFi protocols can power borrowing, repayments, or staking tied directly to card activity.
Track 3: Identity & OnChain Reputation - $6k
Use onchain identity, KYC, and behavioral data to power loyalty programs, access tiers, or exclusive perks. Explore integrations that transform user actions into reputation or rewards, bridging the gap between privacy and personalization.
Track 4: Multichain USDC Payment System - $6k
Build an application that enables multichain USDC payments and payouts, remittances, treasury rebalancing, swaps, or seamless USDC purchases.
Track 5: Composable Cross-Chain Applications - $6k
Build seamless, composable apps that span multiple chains, abstract away complexity, and empower users to move value, data, or identity across ecosystems without friction.
Bonus opportunity for all tracks - $10k:
In addition to the main prizes, we're offering bonus rewards of $2,000 each for projects that integrate additional tools and technologies from Circle, LI.FI, and Metamask. You’re eligible for these bonuses whether or not your project places in the top 3, and if you win and also qualify, you get both!
Bonus rewards available for:
Projects that use the MetaMask SDK or MetaMask Delegation Toolkit (DTK) ($2,000)
Projects that use Circle Wallets ($2,000)
Projects that use the LI.FI SDK (through Circle CCTP V2) ($2,000)
Submission requirements
Projects must explore real-world use cases of the MetaMask Card (rewards, identity, DeFi credit, etc.).
Projects must use USDC for stablecoin payments and payouts
Projects must use LI.FI SDK/API/Widget (Track 4 only)
A README with project details and a short recorded demo video is required.
Live hosted demo or working prototype.
Evaluation Criteria
FAQs
Smart Agents & Liquidity Automation
6,000 USDC
Smart Agents & Liquidity Automation
Smart Agents & Liquidity Automation
Judging Criteria
Build smart agents and automation systems (on-chain bots, workflows, or smart contracts) that handle spending, rebalancing, and real-time liquidity management across chains. Ideal solutions optimize rewards, credit usage, or card top-ups with minimal user input.
Bonus opportunity for this track: In addition to the main prizes for this track, we're offering bonus rewards of $2,000 each for projects that integrate specific tools and technologies. You’re eligible for these bonuses whether or not your project places in the top 3, and if you win and also qualify, you get both!
Bonus rewards available for:
Projects that use the MetaMask SDK or MetaMask Delegation Toolkit (DTK) ($2,000)
Projects that use Circle Wallets ($2,000)
Projects that use the LI.FI SDK (through Circle CCTP V2) ($2,000)
Judging Criteria
1. Real world relevance - 25
Does your project address a real problem or user need?
Is it aligned with MetaMask Card use cases, e.g., optimizing user finances, creating card-linked experiences, or using onchain activity/identity as a trigger for rewards or access?
2. Creativity & Originality - 20
Is the concept novel, fun, or something that hasn’t been explored much in Web3?
Could this solution attract users, or create a unique IRL x onchain experience?
3. Functionality - 20
Does your project work? Even as a prototype.
Is the flow clear for a user to interact with?
Does it use USDC as the stablecoin of choice?
4. User Experience - 15
Does your prototype work end-to-end?
Is the user journey clear? Can a MetaMask Card user understand how they benefit from the experience?
5. Potential Impact / Scalability - 20
Could this realistically be adopted?
What’s the likelihood that the team will continue building?
Could this scale or drive loyalty, retention, or onchain financial activity?
Judging Mode
Voting Mode
MAX Votes Per Project Per User/Judge
Judging Accounts
DeFi-Driven Card Utilities
6,000 USDC
DeFi-Driven Card Utilities
DeFi-Driven Card Utilities
Judging Criteria
Create DeFi tools that boost the utility of card-linked assets. Think allocation, protocol routing, or trustless credit lines. Explore how composable DeFi protocols can power borrowing, repayments, or staking tied directly to card activity.
Bonus opportunity for this track: In addition to the main prizes for this track, we're offering bonus rewards of $2,000 each for projects that integrate specific tools and technologies. You’re eligible for these bonuses whether or not your project places in the top 3, and if you win and also qualify, you get both!
Bonus rewards available for:
Projects that use the MetaMask SDK or MetaMask Delegation Toolkit (DTK) ($2,000)
Projects that use Circle Wallets ($2,000)
Projects that use the LI.FI SDK (through Circle CCTP V2) ($2,000)
Judging Criteria
1. Real world relevance - 25
Does your project address a real problem or user need?
Is it aligned with MetaMask Card use cases e.g. optimizing user finances, creating card-linked experiences, or using onchain activity/identity as a trigger for rewards or access?
2. Creativity & Originality - 20
Is the concept novel, fun, or something that hasn’t been explored much in Web3?
Could this solution attract users, or create a unique IRL x onchain experience?
3. Functionality - 20
Does your project work? Even as a prototype.
Is the flow clear for a user to interact with?
Does it use USDC as the stablecoin of choice?
4. User Experience - 15
Does your prototype work end-to-end?
Is the user journey clear? Can a MetaMask Card user understand how they benefit from the experience?
5. Potential Impact / Scalability - 20
Could this realistically be adopted?
What’s the likelihood that the team will continue building?
Could this scale or drive loyalty, retention, or onchain financial activity?
Judging Mode
Voting Mode
MAX Votes Per Project Per User/Judge
Judging Accounts
Identity & On-Chain Reputation
6,000 USDC
Identity & On-Chain Reputation
Identity & On-Chain Reputation
Judging Criteria
Use on-chain identity, KYC, and behavioral data to power loyalty programs, access tiers, or exclusive perks. Explore integrations that turn user actions into reputation or rewards—bridging privacy and personalization.
Bonus opportunity for this track: In addition to the main prizes for this track, we're offering bonus rewards of $2,000 each for projects that integrate specific tools and technologies. You’re eligible for these bonuses whether or not your project places in the top 3, and if you win and also qualify, you get both!
Bonus rewards available for:
Projects that use the MetaMask SDK or MetaMask Delegation Toolkit (DTK) ($2,000)
Projects that use Circle Wallets – includes a Compliance Engine ($2,000)
Projects that use the LI.FI SDK (incorporates Circle CCTP V2) ($2,000)
Judging Criteria
1. Real world relevance - 25
Does your project address a real problem or user need?
Is it aligned with MetaMask Card use cases e.g. optimizing user finances, creating card-linked experiences, or using onchain activity/identity as a trigger for rewards or access?
2. Creativity & Originality - 20
Is the concept novel, fun, or something that hasn’t been explored much in Web3?
Could this solution attract users, or create a unique IRL x onchain experience?
3. Functionality - 20
Does your project work? Even as a prototype.
Is the flow clear for a user to interact with?
Does it use USDC as the stablecoin of choice?
4. User Experience - 15
Does your prototype work end-to-end?
Is the user journey clear? Can a MetaMask Card user understand how they benefit from the experience?
5. Potential Impact / Scalability - 20
Could this realistically be adopted?
What’s the likelihood that the team will continue building?
Could this scale or drive loyalty, retention, or onchain financial activity?
Judging Mode
Voting Mode
MAX Votes Per Project Per User/Judge
Judging Accounts
Multichain USDC Payment System
6,000 USDC
Multichain USDC Payment System
Multichain USDC Payment System
Judging Criteria
Build an application that uses the LI.FI SDK, which incorporates Circle CCTP V2, to enable multichain USDC payments and payouts – remittances, treasury rebalancing, swaps, or seamless USDC purchases.
Bonus opportunity for this track: In addition to the main prizes for this track, we're offering bonus rewards of $2,000 each for projects that integrate specific tools and technologies. You’re eligible for these bonuses whether or not your project places in the top 3, and if you win and also qualify, you get both!
Bonus rewards available for:
Projects that use the MetaMask SDK or MetaMask Delegation Toolkit (DTK) ($2,000)
Judging Criteria
1. Real world relevance - 25
Does your project address a real problem or user need?
Is it aligned with MetaMask Card use cases e.g. optimizing user finances, creating card-linked experiences, or using onchain activity/identity as a trigger for rewards or access?
2. Creativity & Originality - 20
Is the concept novel, fun, or something that hasn’t been explored much in Web3?
Could this solution attract users, or create a unique IRL x onchain experience?
3. Functionality - 20
Does your project work? Even as a prototype.
Is the flow clear for a user to interact with?
Does it use USDC as the stablecoin of choice?
4. User Experience - 15
Does your prototype work end-to-end?
Is the user journey clear? Can a MetaMask Card user understand how they benefit from the experience?
5. Potential Impact / Scalability - 20
Could this realistically be adopted?
What’s the likelihood that the team will continue building?
Could this scale or drive loyalty, retention, or onchain financial activity?
Judging Mode
Voting Mode
MAX Votes Per Project Per User/Judge
Judging Accounts
Composable Cross-Chain Applications
6,000 USDC
Composable Cross-Chain Applications
Composable Cross-Chain Applications
Judging Criteria
Build seamless, composable apps that span multiple chains, abstract away complexity, and empower users to move value, data, or identity across ecosystems without friction.
We're looking for projects that demonstrate how a user can:
Tap into cross-chain assets to access optimal (lowest-cost) credit lines
Unlock value from idle assets by putting them to productive use
Automatically use that value to repay credit over time
Deliver the result as a spendable balance on the MetaMask Card wallet (Linea or any other supported network)
Bonus opportunity for this track: In addition to the main prizes for this track, we're offering bonus rewards of $2,000 each for projects that integrate specific tools and technologies. You’re eligible for these bonuses whether or not your project places in the top 3, and if you win and also qualify, you get both!
Bonus rewards available for:
Projects that use the MetaMask SDK or MetaMask Delegation Toolkit (DTK) ($2,000)
Projects that use Circle Wallets ($2,000)
Projects that use the LI.FI SDK (through Circle CCTP V2) ($2,000)
Judging Criteria
1. Real world relevance - 25
Does your project address a real problem or user need?
Is it aligned with MetaMask Card use cases e.g. optimizing user finances, creating card-linked experiences, or using onchain activity/identity as a trigger for rewards or access?
2. Creativity & Originality - 20
Is the concept novel, fun, or something that hasn’t been explored much in Web3?
Could this solution attract users, or create a unique IRL x onchain experience?
3. Functionality - 20
Does your project work? Even as a prototype.
Is the flow clear for a user to interact with?
Does it use USDC at the stablecoin of choice?
4. User Experience - 15
Does your prototype work end-to-end?
Is the user journey clear? Can a MetaMask Card user understand how they benefit from the experience?
5. Potential Impact / Scalability - 20
Could this realistically be adopted?
What’s the likelihood that the team will continue building?
Could this scale or drive loyalty, retention, or onchain financial activity?
Judging Mode
Voting Mode
MAX Votes Per Project Per User/Judge
Judging Accounts
Bonus Prize pool
10,000 USDC
Bonus Prize pool
Bonus opportunity
In addition to the main prizes, we're offering bonus rewards of $2,000 each for projects that integrate specific tools and technologies. You’re eligible for these bonuses whether or not your project places in the top 3, and if you win and also qualify, you get both!
Bonus rewards available for:
Projects that use the MetaMask SDK or MetaMask Delegation Toolkit (DTK) ($2,000)
Projects that use Circle Wallets or LI.FI SDK (through Circle CCTP V2) ($2,000)
Bonus Prize pool
Judging Criteria
In addition to the main prizes for all tracks, we're offering bonus rewards of $2,000 each for projects that integrate specific tools and technologies. You’re eligible for these bonuses whether or not your project places in the top 3, and if you win and also qualify, you get both!
Bonus rewards available for:
Projects that use the MetaMask SDK or MetaMask Delegation Toolkit (DTK) ($2,000)
Projects that use Circle Wallets ($2,000)
Projects that use the LI.FI SDK (through Circle CCTP V2) ($2,000)
Judging Mode
Voting Mode
MAX Votes Per Project Per User/Judge
Judging Accounts
Schedule
Resource
MetaMask Developer Guides & Tutorials
Weekly office hours with MetaMask, Li.Fi and Circle engineers
Circle Resources
Documentation : https://developers.circle.com/
Circle Wallets: https://www.circle.com/wallets
Circle CCTP: https://www.circle.com/cross-chain-transfer-protocol
Sample Applications: https://developers.circle.com/sample-projects
Developer Blog: https://www.circle.com/topic/developer
Video Tutorials : https://www.youtube.com/playlist?list=PLoJwRn8qrG24wgM802HEDGtzfIL6D9PYW
Developer Console: https://console.circle.com/signup
LI.FI Resources
API docs: https://apidocs.li.fi/reference/welcome-to-the-lifinance-api
SDK docs: https://docs.li.fi/integrate-li.fi-sdk/li.fi-sdk-overview
Developer portal: portal.li.fi
Ideas
Potential Concepts Leveraging the Card as Proof of Identity
Cashback Rewards: Implement a system similar to app.coinback.fun, where users receive cashback rewards for using the card. This could incentivise spending and promote card adoption.
Tiered Rewards: Instead of a 1:1 cashback model, offer a tiered rewards system based on monthly spending. For example, users who spend over a certain threshold could unlock exclusive prizes or benefits.
Event Tickets & Discounts: Partner with event organizers and retailers to offer discounted tickets or exclusive in-store discounts to cardholders. This could create unique experiences and drive spending.
Proof of KYC/Humanity/Spend: Explore using the card as a form of digital identity verification. This could streamline KYC processes and enable access to specific services or platforms.
On-Chain Metrics & Card Integration
Staking & Locking: Incentivize users to lock or stake a specific cryptocurrency to unlock additional card benefits or rewards. This could encourage long-term holding and support the token's ecosystem.
Combined On-Chain/Off-Chain Rewards: Create a system that combines on-chain metrics (like staking) with off-chain spending to offer unique rewards or benefits. This could bridge the gap between on-chain and off-chain activity.
Yield Optimization & Rebalancing Strategies
Automated Rebalancing: Develop tools or features that automatically rebalance users' stablecoin or WETH holdings across different lending pools to maximize yield. This could simplify yield optimisation and attract users looking for passive income opportunities.
Credit Line Management & Optimisation
Automated Credit Line Management: Explore creating an agent or tool that automates the process of taking out and repaying credit lines, optimizing for yield and minimizing costs. This could simplify credit management and attract users who want to leverage their assets.
Yield-Based Credit Repayment: Develop strategies that use yield generated from DeFi protocols to automatically repay credit lines, reducing interest costs and maximizing capital efficiency.
Automated Financial Management Agent
Personalized Financial Assistant: Create an AI-powered agent that manages all aspects of a user's card and DeFi interactions, from yield optimization to credit line management. This could provide a comprehensive financial management solution and attract users who want to outsource their financial decision-making.
Customizable Agent Settings: Allow users to customize the agent's behavior and risk tolerance to align with their individual financial goals and prefer.
Automated Financial Management Agent
Personalized Financial Assistant: Create an AI-powered agent that manages all aspects of a user's card and DeFi interactions, from yield optimization to credit line management. This could provide a comprehensive financial management solution and attract users who want to outsource their financial decision-making.
Customizable Agent Settings: Allow users to customize the agent's behavior and risk tolerance to align with their individual financial goals and preferences.
Crypto Checkout
Universal Checkout Experience: Build a crypto-native checkout product that enables seamless payments across any chain or token, powered by the LI.FI widget. Users can pay with any asset on any chain, and merchants receive USDC on their preferred chain—no bridging or swapping knowledge required.
Plug-and-Play Integration: Offer an embeddable widget or SDK that can be integrated into e-commerce sites, NFT platforms, or dApps. Focus on speed, UX, and reliability, with built-in LI.FI routing, fee customization, and merchant dashboards for tracking payments.
Partner
Circle
Partner
LI.FI