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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.
Arc is becoming a major destination to move your USDC. Bridge to Arc to put your digital assets to work and pay for agent services.
As of September 28, bridging to Arc makes up more than 64% of total transfers on USDC Bridge.
Bridge to Arc: bridge.usdc.com
15% of subscription charges decline. Cross-border, it's 72% worse.
@ConfirmoPay’s Marcy Dumitrescu on why Confirmo Subscribe moves recurring billing onchain, live from the Arc Mainnet launch.
🇮🇳 ETHGlobal Mumbai was a blast! About 1,400 hackers came out, and 89 teams built on Arc, with 45 building in Arc Studio.
Meet our winners:
DeFi: Earlyout (@Satyam_S1603 @Shreyas__Thakur @dextroalien)
Enables users to sell pending fund redemptions for USDC on Arc, with pricing that explains the associated risks.
ethglobal.com/showcase/early…
Mobile: RupeeRail (@Kakashi8654 @shanjiv177 @suyash101101 @vg_jojo239)
Bridging India’s UPI QR payments with onchain stablecoin payments for humans and AI agents. Live on Arc mainnet.
ethglobal.com/showcase/rupee…
Smart contracts: Dynaura (@Dev_9007 @iamomsalunkhe @pavvannn)
A smart solar energy distribution and management system, powered by AI and paid onchain.
ethglobal.com/showcase/dynau…
Bridge Kit: Inphinity (@Ramitphi)
Enables users to create index funds of tokenized stocks on Arc or invest in them using USDC.
ethglobal.com/showcase/inphi…
Continuity: GTMmaxing.com (@himalaythakkarr @vedantsx)
OpenRouter for GTM tools, where AI agents pay from their own wallets.
ethglobal.com/showcase/gtmma…
Special mentions
Skjol (@fassko): arrival-delay cover for small importers, with fixed stablecoin payouts when ships arrive late
Vitaquack (@_krisgg @Masashi_Ono0611 @corotvoid): for robots to be useful, they need a wallet, but we can’t give them ours. Give them a budget.
Sky Proof (@itz_micky06 @kira_906): a tamper-proof black box for autonomous drones
Dabba (@fahmindot @akilaymaan): a stock basket on Uniswap v4 that distributes trading fees
cringe-court (@_pwcca_): a comedy courtroom where AI lawyers argue your case and a verified human jury rules onchain
Thank you to every team that built on Arc this weekend, and to @ETHGlobal for a great event. Keep building, and we can’t wait to see what you ship next .
Technical Office Hours are on November 12 at 8 AM ET.
@TxnSheng will show how to build a USDC checkout from Claude Code, Codex or Cursor with the Arc Studio CLI, then pull the code back into your project.
Come with questions.
community.arc.io/public/even…
Aave is building its next generation of markets on Arc.
@luigidemeo, CBO of @aave, on what comes next.
→ Tokenized equities
→ Onchain FX
→ Institutional lending
Aave’s liquidity and Circle’s reach can help bring new participants into onchain credit.
arc.io/blog/why-aave-is-buil…
Arc 🤝 @BVNKFinance
BVNK is live on Arc.
Through Circle Onramp Kit, builders can give users a bank-transfer path to fund wallets and receive USDC on Arc without managing separate payment processor integrations.
A more complete first-mile funding experience for apps built on Arc.
Clearing is a financial superpower and only the largest banks have had it.
Live from Arc Mainnet @buchmanster on @cyclesmoney's mission to bring institutional-grade debt clearing to everyone.
Builders can bring liquidity to Arc for less with Interop on Arc:
• CCTP fees: 75% off Fast Transfers into Arc, Standard Transfer fees waived to and from Arc for EURC & cirBTC and free for USDC (gas still applies)
• Gateway fees: Waived on Arc for all supported assets, including USDC, EURC, cirBTC (gas still applies)
See pricing: developers.circle.com/crossc…
How does an AI agent pay for an API?
Join Circle’s @shafu0x to explore x402, USDC payments and agent wallets on Arc, plus the setup and funding challenges builders face. Live Q&A on November 12, 2026 at 10:00 AM EST
RSVP: community.arc.io/public/even…
Bring Arc Studio into the coding agent you already use.
With the Arc Studio CLI, Claude Code, Codex or Cursor can hand off onchain work. Inspect the sandbox, review the results and pull code back into your project.
See the workflow: arc.io/blog/arc-studio-cli-b…
Different financial applications need different things from a network.
@blockjain previews Arc Sectors for privacy, payments, and agents, alongside the planned move to Proof of Stake.
This session includes a demo of how private payments could work in Arc Portal.
Arc x Catena: Building Financial Infrastructure for AI Agents on Arc xitter.twitterapi.xyz/i/broadcasts/2ybAVNgZP…
Trading on Arc is already live.
Stablecoins, cirBTC, tokenized assets, lending markets, DEXs, aggregators, and derivatives infrastructure now share one stablecoin-native execution environment.
For teams building onchain markets, Arc brings trading, collateral, liquidity, and settlement closer together.
Uniswap v4 gives builders more ways to design markets on Arc.
@haydenzadams and Ben Morris discuss customizable liquidity pools, new asset launches, and building access to liquidity for cirBTC.
A conversation on how more assets coming onchain changes what developers can build with them.
