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 - jda.eth / jdallaire.sol)