Arc is the purpose-built L1 blockchain from Circle, EVM-compatible, and serves as the Economic OS for the internet — powering the programmable trust layer and transaction engine where capital, humans, and machines coordinate to drive real economic growth. Arc enables builders and issuers worldwide to power the next era of onchain lending, capital markets, FX, and payments - igniting liquidity across currencies and asset classes.
Build and deploy smart contracts that demonstrate advanced programmable logic using USDC or EURC — such as conditional flows, onchain automation, or multi-step settlement mechanisms.
Conditional escrow with onchain dispute + automatic release Programmable payroll / vesting in USDC or EURC Crosschain “conditional transfer” (escrow on source, release on destination via Circle Forwarder)
Submissions will be evaluated based on the following parameters. Please be clear what bounty you are submitting for as a part of your submission!
Build chain abstracted USDC apps that treat multiple blockchains as one liquidity surface, using Arc to move USDC wherever it’s needed. Projects should demonstrate how capital can be sourced, routed, and settled across chains through a single application without fragmenting user experience.
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:
Build applications that enable autonomous AI agents to transact with each other using nanopayments on Arc. Projects should demonstrate how agents can make gas-free micropayments for API calls, data access, compute resources, or services without human intervention. Focus on agent-to-agent commerce, automated payment flows, and scalable transaction systems where traditional payment rails are too expensive or slow.
Examples:
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:
Build prediction market applications on Arc that move beyond speculation and deliver real-world utility — such as forecasting, hedging, and decision-making. Projects should leverage Arc’s stablecoin-native infrastructure (USDC/EURC gas, native FX, deterministic finality, and compliance-ready architecture) to create prediction markets that are easier to use, economically predictable, and credible enough for consumer, institutional, and enterprise use cases. Please see resources section for recommended products to use
Examples:
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:
Are you a founder or have interesting MVPs from previous hackathons? Take a project you already own and add a working Arc integration. Open source repos and live products both qualify.
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
App Kits provide the infrastructure and revenue logic required for global, financial apps. Bridge, swap, send, and ...
04:00 PM EDT — Friday, Jun 12, 2026 in Floor 3 | Workshop Room 1
ETHGlobal New York 2026