Arc Mainnet launches September 16. Arc is an open blockchain network being built for the world’s financial markets, real-time money movement, and agentic economic activity. Arc’s founding validator cohort includes @BlackRock, @The_DTCC, @galaxyhq, @GlobalPayInc, @Mastercard, @MoneyGram, @ICE_Markets, SBI, @StanChart, Sumitomo Corporation, and @Visa. This is a different model for onchain infrastructure: a network secured by the institutions building on it. Arc is already gaining traction across major institutions. @BlackRock, @BNYglobal, @The_DTCC, and @StanChart are each exploring integrations spanning tokenized asset settlement, custody, stablecoin access, FX, and repo infrastructure. Arc is also expected to launch with a broad ecosystem across liquidity, payments, access, and infrastructure with more to come. Liquidity / DeFi: @aave, @aeroxyz, @FalconXGlobal, @galaxyhq, @GSR_io, @keyrock, @Morpho, @nonco_otc, @Uniswap, @OfficialXFX Payments: @raincards, @ThunesPayments, @wirexapp Major Exchanges and Wallet Providers: @BinanceWallet, @chainlink, @FireblocksHQ, @krakenfx, @Ledger, @MetaMask, @Official_Upbit, @Uniswap Participants building on Arc experience an open platform powering the world's financial markets, real-time money movement, and agentic economic activity. Whether you're launching a financial application, integrating stablecoin flows, or experimenting with new, AI-powered economic models, Arc gives you the tools to build what isn’t possible anywhere else. Arc Mainnet launches September 16. arc.io/pressroom/circle-anno…

Arc 🤝 @Arguspad Every idea gets a seat. Live on Arc.

Connect idle USDC in Arc apps to supported @Morpho Vaults. Earn Kit gives builders a simpler way to connect app balances on Arc to curated Morpho Vaults, with deposit, earn, track, and withdraw exposed through developer-facing APIs. Builders own the user experience. Earn Kit handles the DeFi infrastructure underneath. arc.io/blog/how-earn-kit-kee…

New in Arc Studio. Teams can now request a one-time usage limit increase when their organization is running low. Get one month of higher shared allowance across your org, so every member can keep building without interruption. studio.arc.io/

Arc 🤝 @centrifuge Centrifuge is live on Arc. Real-world assets from Janus Henderson and New York Life Investment Management are being tokenized on Arc, including JAAA, JTRSY, and HYB. These assets may expand the collateral and yield surface for builders, bringing institutional-grade RWAs into a stablecoin-native environment for lending, treasury, and structured financial applications.

Tokenized stocks can be bought and traded instantly with a digital wallet. Jeremy Allaire on what that means for emerging markets with the launch of Arc.

Technical Office Hours is Thursday, October 1 at 11 AM ET. Join @TxnSheng for a practical walkthrough of Onramp, Earn, and Borrow Kits on Arc Mainnet. Fiat purchases of USDC and EURC. Earn opportunities. Borrowing against crypto assets. Bring your implementation questions. Sign up: community.arc.io/home/events…

Uniswap is home to cirBTC, processing 90% of its trading volume on @arc Users can swap and LP on the Uniswap Web App, with no Circle account required

Arc is an AI-first economic operating system where agents can transact, contract, and coordinate. On @tbpn, @jerallaire discusses Arc’s launch and why it’s such a huge milestone.

Sends and receives of USDC on Arc network are now available on coinbase․com and in the Coinbase iOS & Android apps in supported regions.

USYC is now live on Arc. The Economic OS for the internet is built for moving money and bringing productive capital onchain. As a tokenized money market fund, USYC brings institutional-grade collateral onchain, expanding the assets that can move, settle, and integrate across internet-native financial applications. circle.com/usyc USYC is available only to eligible non-US institutional investors and subject to onboarding requirements. For informational purposes only. Not an offer or solicitation.