Circle has launched Arc, a new Layer 1 blockchain purpose-built for financial markets, real-time money movement, and AI-driven economic activity, with more than 100 institutional and ecosystem builders live on day one, including major crypto exchanges Coinbase, Kraken, Binance, and others (Source 1, 2, 3). The network went live with a founding validator cohort drawn from institutions that run global finance, marking a significant shift in how crypto exchanges and traditional financial infrastructure are converging around blockchain technology.

Why Are Major Crypto Exchanges Betting on Arc?

The participation of major crypto exchanges signals a broader industry shift toward purpose-built blockchains designed for institutional use. Exchanges including Binance, Bitso, Bitvavo, Bybit, Coinbase, Gate, Kraken, KuCoin, MEXC, OKX, OSL, Upbit, and Wenia are providing users and institutions with seamless access into Arc. This represents a departure from the traditional model where exchanges operate independently on existing blockchains. Instead, these platforms are now integrating directly into a network specifically engineered for financial markets.

The exchanges are not simply connecting to Arc as users; they are part of a broader ecosystem that includes custody providers, payment networks, and trading protocols. This integration suggests that exchanges see Arc as a critical infrastructure layer for the future of digital asset trading and settlement. The network's design choices address long-standing pain points that exchanges and their users have faced on other blockchains.

What Makes Arc Different From Other Blockchains?

Arc distinguishes itself through six core design features that directly address the needs of financial institutions and exchanges (Source 1, 2, 3):

• Gas in Dollars: Transaction fees are paid in USDC, Circle's regulated stablecoin, eliminating the need for a volatile native token that traders must acquire separately.
• Sub-Second Finality: The network offers deterministic, instant settlement with no possibility of transaction reversal, a critical feature for exchanges handling high-volume trades.
• Opt-In Privacy: Confidential transactions and balances with view keys are available, currently in development for network-wide release, addressing enterprise confidentiality requirements.
• Issuers and Interoperability: Arc serves as a home for USDC, EURC (Circle's euro stablecoin), and tokenized real-world assets, with Circle StableFX providing 24/7 cross-currency settlement.
• Agentic Economic Activity: Arc is the first blockchain designed from inception to support AI agents as economic actors, enabling automated trading, payments, and contract execution.
• Institutional Security: Post-quantum signatures are supported today, and deterministic consensus is built to financial market standards, addressing long-term security concerns.

These features directly address friction points that exchanges and their institutional customers have raised. The predictable fee structure in dollars eliminates the volatility risk associated with native tokens, while sub-second finality ensures that trades settle instantly without the uncertainty that plagues other networks.

How Does Arc Support AI-Driven Trading and Payments?

One of Arc's most distinctive features is its native support for AI agents as economic participants. USDC already accounts for 98.8% of agent-driven transaction volume, according to Circle data (Source 2, 3). Since Circle's Agent Stack launched in May 2026, the overwhelming majority of agent-to-agent payments settling over the x402 standard have used USDC. Arc is the first blockchain designed from the ground up to handle this emerging class of participant.

Circle is providing three tools to support this ecosystem. The Circle Agent Stack gives developers and agents policy-controlled Agent Wallets and nanopayments powered by Circle Gateway. Arc Portal lets people fund agent wallets, set spend limits, and delegate onchain tasks with visibility and control. AgentVM is being designed so that agents can work with sensitive data in a protected environment while Arc provides an immutable record that lets applications verify where each result came from without exposing the underlying data (Source 2, 3).

For exchanges, this means they can eventually offer AI-powered trading and settlement services to their users, automating complex financial operations while maintaining transparency and security.

Which Institutions Are Securing Arc's Network?

Arc's founding validator cohort includes some of the world's most significant financial institutions. BlackRock, The Depository Trust and Clearing Corporation (DTCC), Galaxy, ICE, Mastercard, MoneyGram, SBI Group, Standard Chartered, Sumitomo Corporation, Visa, and Worldpay (now Global Payments) are participating in the operation of the network itself, not simply connecting to it (Source 1, 2, 3). This represents an unprecedented level of institutional participation in a public blockchain network.

"As digital assets infrastructure matures, we expect to see certain networks increasingly designed around the needs of specific markets and use cases. Purpose-built blockchains can help accelerate adoption of digital asset use cases, and Arc appears clearly well positioned to serve stablecoin and payment use cases at scale," said Robbie Mitchnick, Global Head of Digital Assets at BlackRock.

Robbie Mitchnick, Global Head of Digital Assets at BlackRock

ICE, which operates critical market infrastructure globally, emphasized that its institutional customers are seeking ways to operate seamlessly across traditional and digital markets. Arc's native capabilities, including predictable fees and instant finality, address real friction points these customers raised.

Beyond the validator core, more than 100 institutional and ecosystem builders are already live on or exploring Arc's private mainnet. This includes global banks such as BNY, BTG Pactual, HSBC, Lead Bank, Societe Generale, Standard Chartered, and State Street; asset managers and real-world asset issuers including Bitwise, BlackRock, Dinari, and Janus Henderson; and custody providers such as Anchorage, BitGo, Ceffu, Copper, Fireblocks, and Zodia Custody.

What Does Arc's Launch Mean for Exchange Custody and Regulation?

The participation of dedicated custody providers on Arc signals a maturation of the infrastructure supporting exchanges. Custody providers like Anchorage, BitGo, Ceffu, Copper, Fireblocks, and Zodia Custody are delivering secure, institutional-grade custody for digital assets on Arc. This addresses one of the primary concerns institutional investors and exchanges have had about onchain finance: the security and regulatory compliance of asset custody.

Arc's design also incorporates regulatory considerations. The network's opt-in privacy features, combined with a permissioned validator set and what Circle describes as regulatory clarity from the GENIUS Act, enable banks, asset managers, and enterprises to use a public blockchain for treasury, trading, and confidential payments (Source 2, 3). This suggests that Arc is being positioned as a compliant infrastructure layer for regulated financial institutions, not just a decentralized alternative to traditional finance.

For exchanges, this means they can offer Arc-based trading and settlement services while maintaining the regulatory compliance and institutional-grade security that their customers require. The presence of major payment networks like Visa, Mastercard, and MoneyGram as validators further reinforces Arc's positioning as a bridge between traditional finance and digital assets.

How Many Projects Are Already Building on Arc?

Arc's developer ecosystem is substantial. The network has more than 75,000 active Arc House members and 10,000 Architect ambassadors who have built more than 1,200 projects on Arc. Its testnet processed more than 700 million transactions in under a year, demonstrating significant developer interest and network capacity.

Arc is fully EVM-compatible, meaning existing Solidity smart contracts and developer tools work on day one. This lowers the barrier to entry for developers and projects already familiar with Ethereum-based development. Circle is also releasing two new tools to accelerate development: Arc Studio, an onchain coding agent that takes ideas to implementation faster, and Arc App Kits, a unified software development kit for core onchain fund flows.

For exchanges, this developer ecosystem means a growing number of applications and services will be available on Arc, potentially increasing the value proposition of offering Arc-based trading pairs and settlement options to users.

Steps to Understanding Arc's Role in the Crypto Exchange Ecosystem

• Recognize the Infrastructure Layer: Arc is not a competitor to exchanges but rather a new infrastructure layer that exchanges are integrating into, similar to how exchanges connect to different blockchains like Ethereum or Bitcoin.
• Understand the Institutional Focus: Unlike many blockchains that prioritize decentralization or speed, Arc is explicitly designed for institutional financial use cases, with validators drawn from the institutions that run global finance.
• Appreciate the Custody Integration: The presence of major custody providers on Arc means that exchanges can offer institutional-grade asset security alongside Arc-based trading and settlement services.
• Consider the Regulatory Angle: Arc's design incorporates privacy, permissioned validators, and regulatory compliance features, suggesting that exchanges can use it to offer compliant digital asset services to institutional customers.
• Monitor Developer Adoption: The large number of projects already building on Arc's testnet indicates that the ecosystem is maturing, and exchanges should watch for new applications and services that could enhance their offerings.

Circle's Arc mainnet launch represents a significant moment in the evolution of crypto exchanges and institutional finance. By launching with more than 100 institutional and ecosystem builders, including major exchanges, custody providers, and payment networks, Arc is positioning itself as critical infrastructure for the next generation of digital asset trading and settlement. For exchanges, this means new opportunities to offer institutional-grade services while maintaining regulatory compliance and security. For institutional investors, it means access to digital asset markets through familiar platforms with the security and compliance features they require.