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    Arc

    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.

    arc.network ↗@Arc ↗
    Prize money awarded
    $50,000
    Prizes
    25
    Winning projects
    25
    Hackathons
    4
    Largest prize
    $3,500
    Active
    2026

    What they reward

    Tech their winners favour

    Share of Arc's winners using it, against all entries at the same hackathons.

    • rust12% of winners · 5% of entries
    • world-id24% of winners · 10% of entries
    • zk12% of winners · 5% of entries
    • chainlink28% of winners · 16% of entries
    • express16% of winners · 10% of entries
    • base16% of winners · 12% of entries
    • solidity52% of winners · 41% of entries
    • nextjs56% of winners · 44% of entries

    Recurring prizes

    Tracks offered at more than one hackathon.

    • Best Chain Abstracted USDC Apps Using Arc as a Liquidity Hub3 hackathons · about $4,083 · last 2026
    • Best Prediction Markets Built on Arc with Real-World Signal2 hackathons · about $2,625 · last 2026
    • Best Smart Contracts on Arc with Advanced Stablecoin Logic2 hackathons · about $3,625 · last 2026

    Hackathons

    1. ETHOnline 2026 Sep 4–16, 2026$10KCore3$10K
    2. New York 2026 Jun 12–14, 2026$15KCore10$15K
    3. Cannes 2026 Apr 3–5, 2026$15KCore8$15K
    4. HackMoney 2026 Jan 30 – Feb 11, 2026$10KCore4$10K

    Winners

    All 25 winning projects →

    VEIL VPN

    Verifiable Encrypted Internet Layer, is the pay as you go VPN protocol that proves no logs are kept.

    $9,000 · World · Best use of World ID 4.0 · +3 more

    Mars

    On-chain audited marketplace where AI agents safely buy verified skills.

    $6,750 · Arc · Best Agentic Economy with Circle Agent Stack · +2 more

    Manila

    Private, onchain, programmable, and agentic USDC payroll and vesting on Arc

    $5,500 · Dynamic · Best Money App · +3 more

    Vouch DeFi

    Zero-collateral credit backed by who you are, not what you own. Private AI, USDC on Arc.

    $5,250 · Arc · Best Chain Abstracted USDC Apps Using Arc as a Liquidity Hub · +2 more

    OpenBook

    The data marketplace for AI agents. Fresh data or your money back.

    $4,500 · The Graph · Best Use of Composable or Standardized Graph Products · +1 more

    OpenPop

    OpenPop is the OpenClaw of verifiable agent workflows. Proof over Promises.

    $4,250 · Arc · Best Smart Contracts on Arc with Advanced Stablecoin Logic · +1 more

    AnyAsset Checkout

    Checkout links where any EVM asset becomes merchant-settled USDC.

    $4,250 · Arc · Best Chain Abstracted USDC Apps Using Arc as a Liquidity Hub · +1 more

    bitrouter

    Autonomous agent spawn and pay for subagent for long-run tasks verifiably

    $3,500 · Arc · Arc Continuity Track: Extend the Arc Ecosystem · +1 more

    ACR

    Every desk runs TCA. No AI agent ever has. Now one does, on Arc: public on The Graph, human-backed.

    $3,000 · Arc · Best DeFi or Agentic Application

    Text-to-Chain

    Bringing DeFi to 2.5B feature phone users via SMS. Cash to Crypto, no internet required

    $2,525 · Arc · Best Chain Abstracted USDC Apps Using Arc as a Liquidity Hub · +1 more

    ArcFlow

    A "self-paying" corporate treasury that earns yield on idle payroll funds via Uniswap v4.

    $2,525 · Arc · Build Global Payouts and Treasury Systems with USDC on Arc · +1 more