Circle, the issuer of the stablecoin USDC, has unveiled circBTC, a new Bitcoin-backed token designed to integrate the world’s largest digital asset into decentralized finance applications – including lending, borrowing and liquidity protocols – addressing the trust deficit that has limited competing wrapped Bitcoin products.
The token is expected to launch on Ethereum and Circle’s Arc blockchain, with additional chain integrations expected in the coming months. The announcement marks Circle’s most direct entry into Bitcoin infrastructure to date, expanding a product portfolio previously focused on dollar-denominated stablecoins and tokenized money market instruments.
Circle Wrapped Bitcoin is coming.
Backed 1:1 by BTC and easily verifiable on-chain, cirBTC is designed to work seamlessly with Circle infrastructure and the broader DeFi ecosystem.
Learn more: pic.twitter.com/Db5U3InaNA
— Circle (@circle) April 2, 2026
Circle CEO and co-founder Jeremy Allaire explicitly framed the launch as an infrastructure play rather than a speculative product. In an article on This framework – a neutral infrastructure – does important argumentative work: it positions circBTC not as a yield product controlled by Circle, but as a settlement layer that Circle operates.
Rachel Mayer, Circle’s VP of Product, offered the most accurate diagnosis of the problem cirBTC is designed to solve. “Bitcoin is on the fringes of DeFi,” Mayer said in an article on X. “Not because people don’t want yield or liquidity, it’s because they don’t trust the wrapper.” This sentence summarizes the structural arguments in favor of a new entrant: the problem is not demand, it is the perception of counterparty risk.
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CirBTC Circle Bitcoin Mechanics: what is the token and how it works
cirBTC is a wrapped Bitcoin token – Bitcoin held and represented as an ERC-compliant token on-chain – but Circle differentiates it from existing products primarily through custody architecture and issuer credibility.
The token runs on Ethereum and Arc, Circle’s stablecoin-optimized Layer 2 network that the company has been developing since 2024, with the Arc environment designed to support gasless transactions through a combination of native USDC fee settlement, a developer-sponsored “gas station” model, and a “Paymaster” system enabling USDC-denominated gas on external chains including Ethereum, Polygon, and Solana.
$1.7 billion worth of bitcoin remains on the fringes of DeFi. Not because people don’t want yield or liquidity, it’s because they don’t trust the wrapper.
cirBTC is Circle’s answer: backed 1:1, verifiable on-chain, and built on infrastructure the market already trusts.
coming soon…
– Rachel Mayer (@0xrachelita) April 2, 2026
The technical implication is that cirBTC holders interacting within Arc’s native protocols will not need ETH or any other separate gas token to execute transactions – a sticking point that has historically discouraged retail and institutional participation in DeFi wrapped assets. Circle’s Gasless Development Toolkit, released in March 2026, provides the underlying plumbing that makes this viable at the application layer.
CirBTC is not, by design, a yield-generating instrument; it is a liquidity representation of Bitcoin intended to be deployed in external yield strategies by holders or protocols. This structurally distinguishes it from Circle’s USYC – a tokenized money market fund enabling 24/7 USDC redemptions – which generates returns within Circle’s own product stack. The yield of cirBTC, if any, comes from where it is deployed.
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Daniel Frances is a technical writer and Web3 educator specializing in macroeconomics and DeFi mechanics. Hailing from crypto since 2017, Daniel leverages his experience in on-chain analytics to write evidence-based reports and in-depth guides. He holds certifications from the Blockchain Council and is dedicated to providing “insight gain” that overcomes market hype to find real utility for blockchain.
