Arc Mainnet is live. Arc launches as the Economic OS for the internet: an open platform for global markets, real-time value movement, tokenized assets, and agentic economic activity. Arc is more than a blockchain. It launches as a full-stack financial platform with assets, applications, interoperability, developer infrastructure, and Circle platform services live from day one. Arc delivers USDC as native gas, deterministic sub-second finality, EVM compatibility, and institutional validators. It integrates with Arc Studio, App Kits, Arc Portal, Circle Agent Stack, CCTP, Gateway, CPN, and StableFX. A complete economic platform at genesis. Arc launches with infrastructure for: → Agentic economic workflows → Lending and borrowing → Trading and liquidity → Onchain FX → Payments and settlement → Tokenized assets → Exchanges, wallets, custody, compliance, data, and developer tooling 190+ institutional and ecosystem builders are building across Arc.

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

Stablecoins proved digital dollars can move at scale. Arc is for what comes next. Global money apps, agent-run businesses, onchain credit markets, and intelligent accounts that can move, spend, and act programmatically. Microgrants, Developer Grants, and the Arc Builders Fund are open for teams building on Arc. arc.io/blog/the-unfinished-b…

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.

87% of that is on Arc. Arc coded.

Agent-ready services are now live on Arc through Circle Agent Marketplace. Agents can search the live web, access real-time market data, enrich leads with people and company intelligence, and use more services through Circle Agent Stack. Pay per call in USDC. agents.circle.com/services/n…

Onramp Kit is now available on Arc Mainnet. Developers can embed fiat-to-USDC funding flows directly inside their apps. → Apple Pay, Google Pay, debit cards, and bank transfers → Built-in identity verification flow → Clear transaction costs before purchase → Pre-built widget for a faster integration Onramp Kit helps teams reduce first-mile funding friction and bring users into onchain experiences faster: docs.arc.io/app-kit/onramp

BlackRock’s whitepaper, The Machine-Native Economy, mentions Arc and USDC in the context of machine-native payments and settlement. Arc is designed for this model with USDC as gas, programmable settlement, and infrastructure for agentic economic activity. Read the @BlackRock paper: blackrock.com/us/individual/…

WELCOME TO ARC ACCELERATION SEASON! These are the startups selected for the six-week Acceleration Season with @Arc. The program starts next Monday, and on November 5 they'll take the stage at Demo Day to show what they built. Congratulations to @UpscaleTrade, @MiDatoPay, @DAMM_Capital, @cyclesmoney, @terralima_ag, @LendoorProtocol, @TrustlessWork, @fluuix, @Aquazero0, @ai_dentity, @aomi_labs, @Bitjuapp, @BuFi_Global, Slippay, DApps Factory and Masterlaw®.

Funding a wallet should not send users out of your app. In this Onramp Kit walkthrough, see how developers can embed USDC funding directly into their product with: → A server-created onramp session → A hosted widget inside the app → Built-in identity verification → Debit card, Apple Pay, and Google Pay support → Lifecycle events for funding status Your server mints the session. Your app mounts the widget. Users fund with USDC without leaving the flow.

It hasn't been a week $90M+ in @USDC borrowed against cirBTC on @arc

Onramp Kit is now available for developers building on Arc. Add USDC funding directly inside your app without building an onramp from scratch. → Embedded fiat-to-USDC funding → Familiar payment methods like debit cards, Apple Pay, and Google Pay → Built-in identity verification → Hosted widget or SDK methods → Lifecycle events for a cleaner funding journey Funding is often the first step before a user can trade, pay, or save. Onramp Kit helps keep that step inside your product. arc.io/blog/add-usdc-funding…

USDC deposits and withdrawals are now supported on @Arc 💚 Which of our networks will you use most? 👀 Seamless transfers for $USDC on eight blockchains: the newly added Arc, plus Arbitrum, Avalanche, Base, Ethereum, Optimism, Polygon and Solana. Send your USDC on the chain you choose, and bring it home to SwissBorg whenever you like. Watch our tutorial below to see how easy depositing is. 👇 Engineered in Switzerland 🇨🇭 Licensed in Europe 🇪🇺 Growing Wealth Together.

Tenor is live on @arc! Lending markets for crypto, FX, and credit. Built for institutions, powered by @Morpho.

GetLiquid says the $3.5T private credit market still runs on spreadsheets. Chris Miller & Mark Napolitano of @getliquid_io on how they're bringing real estate lending with Arc.

You can now buy and sell USDC on @arc with fiat, directly inside MetaMask. 🦊

From Day 1 to Day 7. Zero to >$700M in Assets (USDC+cirCTC) and ~$7B in USDC transaction volume. Triple 7's.

One week on Arc Mainnet. 624M USDC in circulation. $6.8B USDC transferred. Day one was just the beginning.

@arc mainnet is live and Superfluid Wallet and Superfluid Protocol are live on Arc. Arc is the Economic OS for the internet: an open, EVM-compatible Layer-1 platform for the world’s financial markets, real-time money movement and agentic economic activity. Today we’re also introducing Superfluid Wallet: one wallet which you and your agents use together. Humans own the wallet and keys, set the rules and sign clearly presented requests. Agents propose transactions, follow the rules and seek approval. Explore Arc: arc.io

cirBTC, now just a few clicks away ☝️ Connect your SafePal wallet on Arc Portal and dive into the Arc ecosystem SafePal is proud to support cirBTC from Day 1 🤝