ETHGlobal Taipei

Circle

$10,000

circle.com
circle

About

The Circle platform gives you the tools to integrate USDC and blockchain-based payments into your platform. Circle's suite of smart contracts, APIs, and SDKs are designed to get you off the ground quickly and securely.

Prizes

💳 Build a Multichain USDC Payment System ⸺ $4,000
Up to 2 teams will receive $2,000
Build an application that enables multichain USDC payments and payouts using Fast Transfers from CCTP V2. *Please note that CCTP V2 currently supports Ethereum, Avalanche, Base and Linea. 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 and Base 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

🔑 Build a Smart Wallet with Dynamic Security Controls ⸺ $2,000
Integrate modular wallets using Circle plugins and the Compliance Engine to implement dynamic security controls for USDC transactions. *Please note that Passkey is currently the only feature enabled by Modular Wallet. 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

🔄 Implement Hooks for CCTP V2 Transfers ⸺ $2,000
Develop an application that automates follow-on actions after a cross-chain USDC transfer by leveraging CCTP Hooks, enabling seamles, programmable workflows.

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

Resources

Documentation
https://developers.circle.com/
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Interactive Quickstarts
https://developers.circle.com/interactive-quickstarts
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Sample Projects
https://developers.circle.com/sample-projects
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Replit Templates
https://replit.com/@buildoncircle
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Video Tutorials
https://www.youtube.com/playlist?list=PLoJwRn8qrG24wgM802HEDGtzfIL6D9PYW
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Circle Developer Homepage
https://www.circle.com/developer
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Developer Console
https://console.circle.com/
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Circle React Elements (ChainSafe)
https://circle-react-elements.replit.app/?path=/docs/getting-started--docs
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Workshop

🛠️ Circle Developer Tooling: ETHGlobal 2025

Learn about Circle's stablecoins and full-stack developer tools to hack your real-world blockchain-based payment ap...

This workshop is happening in-person

04:00 PM CST — Friday, Apr 4, 2025 in Workshop Room 1

Guides