circleStablecoin issuer USDC has unveiled cirBTC, a new bitcoin-backed token designed to bring the world’s largest digital assets into decentralized finance applications — including lending, borrowing and liquidity protocols — by addressing the trust deficit that has limited competing encapsulated bitcoin products.
The token is set to launch on Ethereum and Circle’s Arc Blockchain network, with additional on-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.
Bitcoin wrapped circle is coming.
Backed 1:1 by BTC and easily verifiable, cirBTC is designed to work seamlessly with Circle’s infrastructure and the broader DeFi ecosystem.
Learn more: https://t.co/wWzVBZdIz1 pic.twitter.com/Db5U3InaNA
– Circle (@circle) April 2, 2026
Jeremy Allaire, CEO and co-founder of Circle, clearly framed the launch as an infrastructure play rather than a speculative product. In a post on This framework – neutral infrastructure – does something very controversial: it positions cirBTC not as a product controlled by the circuit, but as a settlement layer in which the circuit operates.
Rachel Mayer, VP of Product at Circle, provided an accurate diagnosis of the problem that cirBTC was designed to solve. “Bitcoin exists on the fringes of decentralized finance,” Mayer said in a post on X. “It’s not because people don’t want yield or liquidity — it’s because they don’t trust the envelope.” This sentence summarizes the structural situation of the new entrant: the problem is not the demand, but the counterparty’s perception of the risks.
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CirBTC’s Bitcoin Circle Mechanics: What is a token and how does it work
cirBTC is a bitcoin token — bitcoins are held in custody and represented as an ERC-compatible token — but Circle sets it apart from existing products primarily through its custodial architecture and issuer credibility.
The token runs on Ethereum and Arc, Circle’s enhanced layer 2 network for stablecoins that the company has been developing since 2024, with the Arc environment designed to support gas-free transactions through a combination of native USDC fee settlement, a developer-sponsored “gas station” model, and a “Paymaster” system that enables USDC-denominated gas on external chains including Ethereum, Polygon, and Solana.
There is $1.7T worth of Bitcoin on the DeFi sideline. It’s not because people don’t want yield or liquidity, but because they don’t trust the envelope.
cirBTC is Circle’s answer: 1:1 backed, cross-chain verifiable, and built on infrastructure the market already trusts.
Soon to… https://t.co/hJ2YNweiP6
– Rachel Mayer (@0xrachelita) April 2, 2026
The technical meaning is that cirBTC holders interacting within the Arc-native protocols will not require ETH or any separate gas token to execute transactions – a point of friction that has historically discouraged retail and institutional participation in encapsulated DeFi assets. Circle’s Gasless Developer Kit, released in March 2026, provides the basic plumbing that makes this viable at the application layer.
cirBTC is not a yield instrument by design; It is a liquidity representation of Bitcoin intended to be deployed in external return strategies by holders or protocols. This structurally distinguishes it from Circle’s USYC – a tokenized money market fund that enables 24/7 USDC redemptions – which generates returns within Circle’s own range. project pile. CirBTC revenue, if any, flows from wherever it is published.
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Daniel Francis is a technical writer and Web3 educator specializing in macroeconomics and DeFi mechanics. A crypto native since 2017, Daniel brings his background in cross-chain analytics to author evidence-based reports and detailed guides. It is certified by the Blockchain Council and is dedicated to providing “information gain” that cuts through the market noise to find blockchain’s real-world utility.
