Circle has announced plans to launch Arc, its own Layer 1 blockchain, with USDC serving as the network’s native gas asset. The move marks a significant strategic expansion for the stablecoin issuer, which is increasingly positioning itself not only as the company behind one of the world’s largest dollar-pegged digital assets, but also as a builder of core infrastructure for internet-based financial systems.
Arc Is Designed for Stablecoin Finance
According to Circle, Arc is an open, EVM-compatible Layer 1 blockchain purpose-built for stablecoin finance. Rather than presenting the chain as a general-purpose network for all categories of decentralized applications, the company is framing it around specific financial use cases, including payments, foreign exchange, and capital markets applications.
That positioning is important. Circle has spent years building around the use of USDC in payments, treasury flows, settlements, and cross-border financial operations. With Arc, the company appears to be extending that strategy into the blockchain base layer itself. In Circle’s description, the chain is intended to provide an enterprise-grade foundation for institutions and developers that want infrastructure tailored to stablecoin-centric financial activity.
USDC as Native Gas Is the Key Differentiator
The most notable design choice is that USDC will be used as Arc’s native gas token. That stands apart from the standard model used by most blockchain networks, where transaction fees are paid in a separate volatile native token. By making a dollar-denominated stablecoin the fuel for transactions, Circle is betting that predictable fee economics could be more attractive for businesses and financial applications that require cost visibility and reduced exposure to token price swings.
Circle also said Arc will include an integrated stablecoin FX engine, sub-second settlement finality, and opt-in privacy controls. Taken together, those features suggest the company is trying to appeal to both crypto-native builders and more traditional financial users that prioritize settlement speed, operational reliability, and selective confidentiality.
The use of USDC as gas may also reinforce the stablecoin’s role within Circle’s broader ecosystem. Instead of USDC being used only for transfers, payments, and reserves-related utility, it could now become embedded directly into the transaction mechanics of a dedicated blockchain network. That would deepen its functional importance if Arc gains adoption.
USDC Growth Provides Strategic Backdrop
Circle revealed the Arc plan alongside its second-quarter earnings update, where it highlighted continued growth in USDC circulation. The company reported that USDC in circulation rose 90% year over year to $61.3 billion at the end of the quarter. It added that the total had grown another 6.4% to $65.2 billion as of Aug. 10, 2025.
In the same disclosure, USDC was described as the second-largest fiat-backed crypto asset by market capitalization, with a market value of about $65.23 billion. Those figures matter because the scale of USDC gives Circle a real base from which to launch a chain centered on stablecoin utility. A blockchain that uses USDC for fees, settlement, and potentially broader financial workflows benefits from an asset that already has meaningful circulation and existing market trust.
From a strategic perspective, Arc is not emerging in a vacuum. It is being introduced at a time when stablecoins are becoming increasingly central to onchain payments, digital dollar transfers, and institutional crypto infrastructure. Circle appears to be using USDC’s growth momentum to justify a larger vertical integration push.
Circle Joins the Race to Build Proprietary Chains
With Arc, Circle joins a growing list of crypto and fintech firms launching their own blockchain networks. The competitive landscape already includes Kraken’s Ink, Coinbase’s Base, and Binance’s BNB Chain. Meanwhile, Robinhood is building a Layer 2 network, and Stripe has also disclosed plans for a Layer 1 blockchain.
This trend reflects a broader industry shift. Companies that began as exchanges, payment firms, or infrastructure providers are increasingly trying to own more of the blockchain stack, rather than relying exclusively on third-party networks. Building a proprietary chain gives them greater control over product design, fee structures, user experience, and the integration of services across custody, payments, trading, and settlement.
Circle’s approach differs in one key respect: while some rivals have emphasized Layer 2 development, Circle is choosing to build directly at the Layer 1 level. That decision may reflect the company’s desire to optimize the base architecture specifically for stablecoin finance instead of adapting to the constraints of an underlying chain. It also places Circle in the same general strategic category as Stripe, which has similarly indicated interest in L1 development.
Interoperability Remains Central to the Plan
Although Arc is being presented as Circle’s own blockchain, the company said the network will remain fully compatible and interoperable with the dozens of partner blockchains it already supports. This is a notable point, because Circle’s current business depends heavily on USDC’s broad presence across multiple networks rather than exclusivity on a single chain.
In other words, Arc is not being pitched as a replacement for Circle’s multichain strategy. Instead, the company appears to be positioning it as a new foundational layer that will be deeply integrated into Circle’s platform and services while still functioning within a wider blockchain ecosystem. If executed effectively, that could allow Circle to capture more value at the infrastructure level without abandoning the cross-chain distribution model that helped USDC scale in the first place.
Public Testnet Expected This Fall
Circle said Arc is scheduled to launch in a public testnet this fall. That milestone will likely be the first real opportunity for developers, partners, and market observers to assess how the network performs in practice, particularly around fee design, settlement speed, interoperability, and financial application support.
For now, the announcement signals a clear ambition: Circle wants to evolve from a stablecoin issuer into a full-stack platform provider for the internet financial system. Whether Arc can become a meaningful infrastructure layer will depend on execution, developer adoption, and whether the market sees lasting value in a blockchain where USDC is not just the product, but also the native economic engine.