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Introducing Arc, an open Layer-1 blockchain purpose-built for stablecoin finance. From payments to FX to capital markets, Arc is the home for builders innovating with digital money and tokenized value on the internet. Stablecoins have shown us what’s possible. They’ve powered trillions in onchain transactions and unlocked a faster,...

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Arc

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769,447 views • 10 months ago •via X (Twitter)

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Introducing Arc, the home for stablecoin finance. Arc is an open Layer-1 blockchain purpose-built to drive the next chapter of financial innovation powered by stablecoins. Designed to provide an enterprise-grade foundation for payments, FX, and capital markets, Arc delivers the performance, reliability, and liquidity builders need to meet global financial demands. Arc features: ✅ USDC as native gas ✅ Built-in FX engine ✅ Deterministic sub-second finality ✅ Opt-in privacy ✅ Full Circle platform integration Open, composable, and EVM-compatible, Arc is designed to interoperate seamlessly with the broader multichain ecosystem. As part of our mission to advance blockchain infrastructure, we're excited to welcome the Malachite team and IP from Informal Systems to Circle. Arc is built on Malachite’s high-performance consensus engine. In line with our commitment to open-source development, the core software for Arc will be released under a permissive license, enabling the broader developer community to contribute, extend, and build on top. Serving as foundational infrastructure for the internet, Arc will enable 24/7 global settlement that’s as seamless and native as messaging on the web. Arc will enter private testnet in the coming weeks, with public testnet expected this fall. Read the litepaper: Let’s build the new internet financial system together:
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Introducing Arc, the home for stablecoin finance. Arc is an open Layer-1 blockchain purpose-built to drive the next chapter of financial innovation powered by stablecoins. Designed to provide an enterprise-grade foundation for payments, FX, and capital markets, Arc delivers the performance, reliability, and liquidity builders need to meet global financial demands. Arc features: ✅ USDC as native gas ✅ Built-in FX engine ✅ Deterministic sub-second finality ✅ Opt-in privacy ✅ Full Circle platform integration Open, composable, and EVM-compatible, Arc is designed to interoperate seamlessly with the broader multichain ecosystem. As part of our mission to advance blockchain infrastructure, we're excited to welcome the Malachite team and IP from Informal Systems to Circle. Arc is built on Malachite’s high-performance consensus engine. In line with our commitment to open-source development, the core software for Arc will be released under a permissive license, enabling the broader developer community to contribute, extend, and build on top. Serving as foundational infrastructure for the internet, Arc will enable 24/7 global settlement that’s as seamless and native as messaging on the web. Arc will enter private testnet in the coming weeks, with public testnet expected this fall. Read the litepaper: Let’s build the new internet financial system together:

Circle

698,597 views • 10 months ago

Arc Public Testnet is live. Arc is an open Layer-1 blockchain designed to serve as the Economic OS for the internet, uniting programmable money and onchain innovation with real-world economic activity. Arc is uniquely suited to be a new trusted foundation for: → Lending and financial services → Capital markets → Tokenized asset issuance → Stablecoin settlement worldwide With deterministic sub-second finality, stablecoins as native gas, and opt-in configurable privacy, Arc is purpose-built to meet the needs of the global financial system. It’s built for a world where: → Financial apps are as accessible as email → Dollars, euros, pesos, and other fiat currencies move instantly → Private transactions that support compliance happen at scale → AI agents transact and coordinate commercial activity autonomously Arc testnet is already seeing participation from leading companies across capital markets, global payments and technology platforms, and full-stack developer infrastructure providers. Guided by Circle’s vision of making money truly open and programmable, Arc is public internet infrastructure that invites everyone to build, coordinate, and transact onchain. Start building: Read the release:
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Arc Public Testnet is live. Arc is an open Layer-1 blockchain designed to serve as the Economic OS for the internet, uniting programmable money and onchain innovation with real-world economic activity. Arc is uniquely suited to be a new trusted foundation for: → Lending and financial services → Capital markets → Tokenized asset issuance → Stablecoin settlement worldwide With deterministic sub-second finality, stablecoins as native gas, and opt-in configurable privacy, Arc is purpose-built to meet the needs of the global financial system. It’s built for a world where: → Financial apps are as accessible as email → Dollars, euros, pesos, and other fiat currencies move instantly → Private transactions that support compliance happen at scale → AI agents transact and coordinate commercial activity autonomously Arc testnet is already seeing participation from leading companies across capital markets, global payments and technology platforms, and full-stack developer infrastructure providers. Guided by Circle’s vision of making money truly open and programmable, Arc is public internet infrastructure that invites everyone to build, coordinate, and transact onchain. Start building: Read the release:

Circle

401,370 views • 7 months ago

Why did Circle build Arc? At Arc Studio, the product team shared the vision for Arc as the Economic OS for onchain finance and what that means for builders. From interoperability to stablecoin-native infrastructure, Arc is designed to support real use cases across FX, lending, capital markets, and payments. If you’re building onchain, this is worth a watch.
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Why did Circle build Arc? At Arc Studio, the product team shared the vision for Arc as the Economic OS for onchain finance and what that means for builders. From interoperability to stablecoin-native infrastructure, Arc is designed to support real use cases across FX, lending, capital markets, and payments. If you’re building onchain, this is worth a watch.

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With Hibachi, a member of the Arc Builders Fund, cofounder Chip Dempsey joins our own Sam | Circle and Arc Community to share why Hibachi chose Arc to build a blockchain-native FX exchange. From atomic settlement and reduced counterparty risk to sub-second finality and stablecoin-native gas, this is what institutional-grade markets look like onchain. We’re building Arc to give developers the infrastructure to modernize global finance. Watch the full conversation.
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With Hibachi, a member of the Arc Builders Fund, cofounder Chip Dempsey joins our own Sam | Circle and Arc Community to share why Hibachi chose Arc to build a blockchain-native FX exchange. From atomic settlement and reduced counterparty risk to sub-second finality and stablecoin-native gas, this is what institutional-grade markets look like onchain. We’re building Arc to give developers the infrastructure to modernize global finance. Watch the full conversation.

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38,126 views • 3 months ago

Open. Interoperable. Stablecoin-native. Arc was built to uplift stablecoin finance and benefit the entire multichain ecosystem.
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17,064 views • 8 months ago

Arc is more than a blockchain. It’s an open ecosystem, purpose-built for the next wave of stablecoin builders, seamlessly integrated with Circle’s full-stack platform. The future of stablecoin finance will be built on Arc. Gordon Liao with the The Chopping Block
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Arc is more than a blockchain. It’s an open ecosystem, purpose-built for the next wave of stablecoin builders, seamlessly integrated with Circle’s full-stack platform. The future of stablecoin finance will be built on Arc. Gordon Liao with the The Chopping Block

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18,940 views • 8 months ago

Arc Public Testnet is now live. Open to developers and enterprises globally, Arc is the Economic OS for the internet that unites programmable money and onchain innovation with real-world economic activity. Start building: Learn more:
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Arc Public Testnet is now live. Open to developers and enterprises globally, Arc is the Economic OS for the internet that unites programmable money and onchain innovation with real-world economic activity. Start building: Learn more:

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1,185,678 views • 7 months ago

We're excited to announce that OpenVPP is a Day 1 Architect, building our Core Product on Arc, an open Layer-1 blockchain developed by Circle, purpose-built to unite programmable money and onchain innovation with real-world economic activity. Arc provides sub-second finality, USDC-denominated gas, and built-in privacy, delivering deterministic performance and financial certainty required for mission-critical electric grid operations tied to power market economics. Revenue-grade is native to Arc’s L1 design, making it the most trusted settlement layer for a resilient electric grid to power communities globally. OpenVPP x Arc, the economic OS powering the internet of energy.
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Blockradar is simplifying stablecoin transactions for fintechs and bringing real-world finance onchain. As a Day One Architect, Blockradar is using Arc’s stablecoins as gas model, instant finality, and Circle Gateway to unify USDC balances across supported chains, helping teams launch faster and scale with confidence. Build on Arc testnet.
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Arc is an open Layer-1 blockchain purpose-built for stablecoin finance, meaning it’s optimized for stablecoin-native use cases.
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Arc is an open Layer-1 blockchain purpose-built for stablecoin finance, meaning it’s optimized for stablecoin-native use cases.

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Day One Architect Hurupay is bridging onchain finance with real-world access. They’re using stablecoins and onchain FX on Arc testnet to help remote workers open dollar accounts and get paid faster, with lower costs and predictable fees.
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Arc is designed to bring stablecoin finance to the masses.
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Arc is designed to bring stablecoin finance to the masses.

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Arc is built to host stablecoins pegged to fiat currencies around the world, enabling onchain FX like never before. Powering lending, capital markets, trade finance, global payments and more, all onchain.
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149,548 views • 6 months ago

Arc is designed for stablecoins. Circle has been building products for stablecoin finance for close to a decade.
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Arc is designed for stablecoins. Circle has been building products for stablecoin finance for close to a decade.

Arc

15,516 views • 8 months ago

Arc is designed to serve as a global liquidity hub for the world’s stablecoins and tokenized assets.
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Arc is designed to serve as a global liquidity hub for the world’s stablecoins and tokenized assets.

Arc

34,135 views • 7 months ago

The Arc Ecosystem is Taking Shape With today’s public testnet launch, we’re proud to share that leading companies across major sectors of the global financial system and onchain economy are already engaging in the early Arc ecosystem. Collectively, these organizations manage hundreds of trillions in assets, facilitate vast global payment flows, and power billions of transactions every day. Spanning the Americas, Asia, Europe, Africa, and the Middle East, the geographic diversity of testnet participants highlights a defining strength of Arc: it’s purpose-built to connect every local market to the global economy. As the Economic OS for the internet, Arc presents the opportunity for every type of company to build on enterprise-grade network infrastructure — advancing a shared vision that a more open, inclusive, and efficient global economic system can be built natively on the internet. Stablecoins and asset issuers: Arc is designed as a foundation for issuers of fiat stablecoins, along with tokenized equities, credit, money market funds, and more. Central to this is Arc’s roadmap for stablecoins as tokens for gas payments, as well as native infrastructure that will be deployed on Arc for core stablecoin swaps and FX liquidity. Currency issuers from key geographies — Australia, Brazil, Canada, Mexico, and the Philippines — who are joining for Arc Testnet include: AUDF issued by Forte Securities BRLA issued by Avenia JPYC issued by JPYC Inc. KRW1 issued by BDACS MXNB issued by Juno (a Bitso company) PHPC issued by CoinsPH QCAD issued by Stablecorp In addition to these global currency issuers, Circle is engaging with a wide range of stablecoin issuers and stakeholders — including issuers of dollar-, euro-, and other fiat-backed stablecoins — to bring their assets to Arc. Stay tuned for more details on upcoming Arc platform enhancements designed for stablecoin-based gas fees, FX, and cross-stablecoin liquidity and interoperability, which are key themes and focuses for the emerging internet financial system. Enabling developers The day-one experience for developers is essential, and we are pleased to have many leading ecosystem players that provide developer tools and blockchain infrastructure to help bring applications and solutions to Arc. Testnet participants include: AI: Anthropic enriching the developer experience on Arc with Claude Code-powered builder tools. Digital Wallets: Bron, Exodus, Fireblocks, Hecto Innovation, Ledger, MetaMask, Privy, Rainbow, Turnkey, and Vultisig connect Arc into desktop and mobile app experiences. Developer Tools: Alchemy, Chainlink, Crossmint, Dynamic, FunXyz, LayerZero, Pimlico, thirdweb, and ZeroDev support builders with frameworks and kits. Crosschain: Across, Stargate, and Wormhole connect Arc to other blockchain networks. Infrastructure: Blockdaemon, Blockscout, Bridge, Elliptic, Quicknode, Ramp Network, Tenderly, Transak, and TRM help keep Arc accessible, performant, compliant, and reliable. Digital asset markets and liquidity DEXs: Curve, Dromos Labs (Aerodrome, Velodrome), Euler Finance, Fluid, and Uniswap Labs provide decentralized trading and liquidity pools. CEXs: Bitvavo, ByBit, Coinbase, Coincheck, Hashkey, Kraken, and Robinhood expand access points into the Arc ecosystem. Market Makers and OTCs: Auros, B2C2, Cumberland, Galaxy Digital, GSR, IMC, Forte Securities, Keyrock, NONCO, Wintermute, and Zodia Markets provide efficient access to liquidity globally. Borrow/Lend: Aave, Maple, and Morpho enable credit and capital efficiency with stablecoins and tokenized assets. Yield: Centrifuge, Superform, and Securitize power stablecoin-native yield opportunities. Tokenized Fund Issuers: WTGXX and CRDT by WisdomTree provide access to yield-bearing tokenized investment funds. Custodians: BitGo, Copper, Taurus, and Zodia Custody provide digital asset storage for institutions. Global payments, technology, and fintechs: Amazon Web Services, Brex, Catena Labs, Careem, Cloudflare, Corpay, Dmall, Ebanx, FIS, Hecto Financial, LianLian Global, Mastercard, Mercoin, Nuvei, Noah, Pairpoint by Vodafone, Paysafe, PhotonPay, Ramp, Sasai Fintech — a business of Cassava Technologies, Sumitomo Corporation, Visa, WorldPay, and Yellow Card. Capital markets: Apollo, BNY, NYSE / ICE, and State Street. Banks, asset managers, and insurers: Absa, Bank Frick, BlackRock Inc, BTG Pactual, Clearbank, Commerzbank, Deutsche Bank, Emirates NBD, First Abu Dhabi Bank, FirstRand, Fiserv, Goldman Sachs, HSBC, Invesco, Kyobo Life, SBI Group, Standard Chartered, Société Générale, and WisdomTree.
1:30

The Arc Ecosystem is Taking Shape With today’s public testnet launch, we’re proud to share that leading companies across major sectors of the global financial system and onchain economy are already engaging in the early Arc ecosystem. Collectively, these organizations manage hundreds of trillions in assets, facilitate vast global payment flows, and power billions of transactions every day. Spanning the Americas, Asia, Europe, Africa, and the Middle East, the geographic diversity of testnet participants highlights a defining strength of Arc: it’s purpose-built to connect every local market to the global economy. As the Economic OS for the internet, Arc presents the opportunity for every type of company to build on enterprise-grade network infrastructure — advancing a shared vision that a more open, inclusive, and efficient global economic system can be built natively on the internet. Stablecoins and asset issuers: Arc is designed as a foundation for issuers of fiat stablecoins, along with tokenized equities, credit, money market funds, and more. Central to this is Arc’s roadmap for stablecoins as tokens for gas payments, as well as native infrastructure that will be deployed on Arc for core stablecoin swaps and FX liquidity. Currency issuers from key geographies — Australia, Brazil, Canada, Mexico, and the Philippines — who are joining for Arc Testnet include: AUDF issued by Forte Securities BRLA issued by Avenia JPYC issued by JPYC Inc. KRW1 issued by BDACS MXNB issued by Juno (a Bitso company) PHPC issued by CoinsPH QCAD issued by Stablecorp In addition to these global currency issuers, Circle is engaging with a wide range of stablecoin issuers and stakeholders — including issuers of dollar-, euro-, and other fiat-backed stablecoins — to bring their assets to Arc. Stay tuned for more details on upcoming Arc platform enhancements designed for stablecoin-based gas fees, FX, and cross-stablecoin liquidity and interoperability, which are key themes and focuses for the emerging internet financial system. Enabling developers The day-one experience for developers is essential, and we are pleased to have many leading ecosystem players that provide developer tools and blockchain infrastructure to help bring applications and solutions to Arc. Testnet participants include: AI: Anthropic enriching the developer experience on Arc with Claude Code-powered builder tools. Digital Wallets: Bron, Exodus, Fireblocks, Hecto Innovation, Ledger, MetaMask, Privy, Rainbow, Turnkey, and Vultisig connect Arc into desktop and mobile app experiences. Developer Tools: Alchemy, Chainlink, Crossmint, Dynamic, FunXyz, LayerZero, Pimlico, thirdweb, and ZeroDev support builders with frameworks and kits. Crosschain: Across, Stargate, and Wormhole connect Arc to other blockchain networks. Infrastructure: Blockdaemon, Blockscout, Bridge, Elliptic, Quicknode, Ramp Network, Tenderly, Transak, and TRM help keep Arc accessible, performant, compliant, and reliable. Digital asset markets and liquidity DEXs: Curve, Dromos Labs (Aerodrome, Velodrome), Euler Finance, Fluid, and Uniswap Labs provide decentralized trading and liquidity pools. CEXs: Bitvavo, ByBit, Coinbase, Coincheck, Hashkey, Kraken, and Robinhood expand access points into the Arc ecosystem. Market Makers and OTCs: Auros, B2C2, Cumberland, Galaxy Digital, GSR, IMC, Forte Securities, Keyrock, NONCO, Wintermute, and Zodia Markets provide efficient access to liquidity globally. Borrow/Lend: Aave, Maple, and Morpho enable credit and capital efficiency with stablecoins and tokenized assets. Yield: Centrifuge, Superform, and Securitize power stablecoin-native yield opportunities. Tokenized Fund Issuers: WTGXX and CRDT by WisdomTree provide access to yield-bearing tokenized investment funds. Custodians: BitGo, Copper, Taurus, and Zodia Custody provide digital asset storage for institutions. Global payments, technology, and fintechs: Amazon Web Services, Brex, Catena Labs, Careem, Cloudflare, Corpay, Dmall, Ebanx, FIS, Hecto Financial, LianLian Global, Mastercard, Mercoin, Nuvei, Noah, Pairpoint by Vodafone, Paysafe, PhotonPay, Ramp, Sasai Fintech — a business of Cassava Technologies, Sumitomo Corporation, Visa, WorldPay, and Yellow Card. Capital markets: Apollo, BNY, NYSE / ICE, and State Street. Banks, asset managers, and insurers: Absa, Bank Frick, BlackRock Inc, BTG Pactual, Clearbank, Commerzbank, Deutsche Bank, Emirates NBD, First Abu Dhabi Bank, FirstRand, Fiserv, Goldman Sachs, HSBC, Invesco, Kyobo Life, SBI Group, Standard Chartered, Société Générale, and WisdomTree.

Jeremy Allaire - jerallaire.arc

26,134 views • 7 months ago

We’re happy to announce that Blockradar is a Day 1 partner on Arc. Now, any Blockradar customer can begin using Arc on testnet. We’re excited to give our customers the ability to pay for gas fees directly with stablecoins. Gas fees on Arc are low, predictable, and paid in stablecoins, starting with USDC. With fiat-based transaction costs, Arc enables simplified accounting and seamless user experiences that make stablecoin payments feel truly mainstream. Arc’s architecture aligns perfectly with our mission to simplify stablecoin infrastructure for fintechs. On Arc, our customers can issue wallets, automate payouts, and unify USDC balances across chains, now with gas abstraction built in. This collaboration brings us one step closer to a future where stablecoin payments are instant, transparent, and embedded into every financial product.
0:41

We’re happy to announce that Blockradar is a Day 1 partner on Arc. Now, any Blockradar customer can begin using Arc on testnet. We’re excited to give our customers the ability to pay for gas fees directly with stablecoins. Gas fees on Arc are low, predictable, and paid in stablecoins, starting with USDC. With fiat-based transaction costs, Arc enables simplified accounting and seamless user experiences that make stablecoin payments feel truly mainstream. Arc’s architecture aligns perfectly with our mission to simplify stablecoin infrastructure for fintechs. On Arc, our customers can issue wallets, automate payouts, and unify USDC balances across chains, now with gas abstraction built in. This collaboration brings us one step closer to a future where stablecoin payments are instant, transparent, and embedded into every financial product.

Blockradar

41,594 views • 6 months ago

Arc is designed to unite onchain innovation with the real-world economy. Now in public testnet. Hear from the team in a special roundtable: The Arc Experience. Rachel Mayer - VP, Product - Lead Product Manager - Director, Ecosystem BD
5:13

Arc is designed to unite onchain innovation with the real-world economy. Now in public testnet. Hear from the team in a special roundtable: The Arc Experience. Rachel Mayer - VP, Product - Lead Product Manager - Director, Ecosystem BD

Arc

25,876 views • 7 months ago

Arc is the Economic OS for the internet. Build with us on public testnet. Now live.
0:30

Arc is the Economic OS for the internet. Build with us on public testnet. Now live.

Arc

67,721 views • 7 months ago

FX markets are some of the largest markets in the world. While FX trades 24/7, transactions still take days to settle. Arc solves that. Programmable onchain FX. Sub-second finality. This is the Economic OS for the internet.
1:09

FX markets are some of the largest markets in the world. While FX trades 24/7, transactions still take days to settle. Arc solves that. Programmable onchain FX. Sub-second finality. This is the Economic OS for the internet.

Arc

528,500 views • 6 months ago