Circle has launched Digital Asset-Backed Borrowing, a service that allows eligible institutional clients to use Bitcoin as collateral to access USDC liquidity without having to sell their BTC.Rather tCircle has launched Digital Asset-Backed Borrowing, a service that allows eligible institutional clients to use Bitcoin as collateral to access USDC liquidity without having to sell their BTC.Rather t
Circle Launches USDC Borrowing Against Bitcoin Collateral Through cirBTC and Morpho
Circle has launched Digital Asset-Backed Borrowing, a service that allows eligible institutional clients to use Bitcoin as collateral to access USDC liquidity without having to sell their BTC.
Rather than lending directly to customers, Circle provides a workflow connecting Circle Mint with third-party lending protocols. Customers can deposit BTC, mint cirBTC, transfer cirBTC into a Smart Wallet they control, and use the token as collateral on supported lending markets. The borrowed USDC is then automatically transferred back to their Circle Mint account.
Morpho is the first lending protocol supported by Circle for this product, while Aave is planned to be added later. The service is currently available on Arc and Ethereum but is not available to customers in New York.
The move shows Circle expanding Circle Mint from a stablecoin management platform into infrastructure connecting institutional assets, wrapped Bitcoin, and onchain credit markets.
Key Takeaways
Circle has launched Digital Asset-Backed Borrowing, allowing eligible Circle Mint customers to use BTC to access USDC loans without selling their Bitcoin.
Customers deposit BTC, mint cirBTC, and use cirBTC as collateral on third-party lending protocols through a Smart Wallet they control.
Circle does not directly provide the loans. Lending, borrowing, collateralization, and liquidation take place through DeFi protocols and smart contracts that Circle does not own or control.
Morpho is the first lending protocol approved for the product; Circle says Aave will be added as the service continues to develop.
DABB is deployed on Arc and Ethereum. cirBTC is also currently available on both blockchains.
Each cirBTC is backed 1:1 by native BTC, with the backing assets held through Circle National Trust and reserves verifiable onchain.
Borrowing rates, collateral requirements, liquidation thresholds, and liquidity depend on the selected lending market rather than being determined by Circle.
The service is available to eligible Circle Mint customers and currently excludes customers in New York.
What Happened? Circle Connects Bitcoin With USDC Loans
Circle has introduced Digital Asset-Backed Borrowing within Circle Mint to create a unified workflow that allows institutions holding Bitcoin on their balance sheets to use the asset as collateral and access USDC liquidity.
The process begins when a customer deposits native BTC and mints an equivalent amount of cirBTC. The cirBTC is then transferred from Circle Mint into a Smart Wallet controlled by the customer and supplied as collateral to a supported lending protocol.
Once the loan is executed, USDC is first received in the Smart Wallet and then automatically transferred to the customer’s Circle Mint balance. Loan repayment can also be made from Circle Mint through the same workflow.
This allows Circle to connect three components that were previously relatively separate: Bitcoin custody, DeFi lending, and USDC liquidity.
Circle Is Not the Direct Lender
This is an important distinction when understanding the product structure.
Digital Asset-Backed Borrowing is provided by Circle Technology Services as a frontend, Smart Wallet, and set of tools that allow customers to access third-party DeFi protocols.
The actual lending and borrowing activities occur through the smart contracts of the integrated protocols.
Circle also makes clear that factors such as:
Borrowing rates.
Collateral requirements.
Liquidation thresholds.
Market liquidity.
Availability.
are determined by the lending market and may change depending on market conditions.
The product should therefore be viewed as an institutional access layer connecting Circle Mint with onchain credit markets, rather than a service in which Circle receives BTC and directly extends USDC credit.
Morpho Is the First Protocol
Morpho is the first third-party lending protocol approved by Circle for Digital Asset-Backed Borrowing.
Customers can use cirBTC as collateral in supported Morpho markets on Arc or Ethereum to borrow USDC.
Circle has also confirmed that Aave is among the protocols expected to be added as the product continues to develop.
Supporting multiple lending protocols in the future could give customers more choices in terms of liquidity, borrowing costs, and risk parameters rather than requiring them to depend on a single market.
Background / Context
Why Is cirBTC Needed Instead of Native Bitcoin?
Native BTC exists on the Bitcoin network and cannot be directly deposited into smart contracts on Ethereum, Arc, or similar programmable blockchains.
This is why wrapped Bitcoin exists.
Native BTC is held as a reserve, while a corresponding representative token is issued on another blockchain. That token can then be used in lending pools, trading venues, and DeFi applications.
Circle has built cirBTC according to this model.
Each cirBTC is designed to be backed by one corresponding native BTC, allowing Bitcoin to become collateral that can interact with smart contracts without requiring the holder to sell the underlying BTC position.
How Is cirBTC Backed?
Circle describes cirBTC as a wrapped Bitcoin product designed for institutional markets, with a reserve structure focused on transparency and segregated custody.
The backing BTC is held through Circle’s Bermuda affiliate and custodied by Circle National Trust, a national trust bank supervised by the OCC. Circle also uses Chainlink Proof of Reserve and publishes reserve addresses so that participants can verify the amount of BTC backing onchain.
Circle National Trust is not the lender in Digital Asset-Backed Borrowing. Circle explicitly states that the trust bank provides custody and does not accept deposits or make loans.
cirBTC Is Currently Available on Arc and Ethereum
cirBTC was initially launched on Ethereum, where relatively mature lending markets, DeFi liquidity, and institutional workflows already exist.
After the Arc mainnet went live, cirBTC was also deployed on Circle’s Layer 1 blockchain.
The product page currently confirms that cirBTC is available on Arc and Ethereum, while being designed to expand across additional blockchains in the future.
DABB is also deployed on these two networks.
Ethereum provides a more established lending ecosystem, while Arc allows Circle to place cirBTC and USDC within the same infrastructure stack developed around the Circle ecosystem.
Why It Matters
Bitcoin Can Move From a Passive Holding to a Source of Liquidity
One challenge with Bitcoin treasury holdings is the trade-off between holding BTC and putting capital to work.
If an institution sells Bitcoin for dollars or stablecoins, it loses part of its exposure to BTC.
If it continues holding BTC in custody, the asset may have limited utility within onchain capital markets.
Crypto-backed lending offers another option.
BTC can remain held as the backing asset, while its wrapped representation is used as collateral to borrow another asset.
In Circle’s case, that borrowed asset is USDC.
This allows institutions to access dollar-denominated liquidity without selling BTC.
Circle Is Connecting Two of Crypto’s Largest Assets
From a market structure perspective, Circle is attempting to connect two asset categories that serve very different roles.
Bitcoin is often used as a reserve or treasury asset.
USDC is designed for payments, settlement, and dollar liquidity.
cirBTC acts as the bridge between these two assets.
An institution can hold Bitcoin as collateral while obtaining USDC for treasury operations, trading, settlement, or other liquidity needs.
The notable aspect is therefore not simply the ability to “borrow USDC against BTC.”
Circle is attempting to combine Bitcoin, USDC, Circle Mint, and onchain lending into a unified workflow for institutional customers.
Circle Mint Is Expanding Its Role
Circle Mint has historically been known primarily as infrastructure that allows businesses to mint, redeem, and manage USDC and EURC.
The addition of cirBTC and Digital Asset-Backed Borrowing expands the platform’s scope.
Circle Mint can now serve as an entry point for a workflow that begins with BTC and ends with USDC liquidity.
This could allow Circle to deepen the integration between its different products.
Instead of requiring customers to separately use a custodian, a wrapped BTC provider, a wallet, and a DeFi interface, Circle is attempting to bring much of the process into a more connected experience.
Impact
Impact on Circle
For Circle, DABB expands its strategy beyond simply issuing stablecoins.
Circle is now building a stack consisting of:
USDC for dollar liquidity.
cirBTC for Bitcoin collateral.
Circle Mint for institutional account infrastructure.
Smart Wallet for customer-controlled assets.
Arc for blockchain settlement.
Third-party lending protocols for credit markets.
This structure allows Circle to participate in more layers of the onchain capital market without necessarily becoming a lending protocol itself.
This is a notable strategic point.
Circle can provide infrastructure and distribution while allowing protocols such as Morpho to determine credit market parameters.
Impact on cirBTC
Digital Asset-Backed Borrowing creates a direct use case for cirBTC shortly after the token entered the market.
Wrapped BTC only gains broad utility when it has sufficient liquidity and integrations.
If cirBTC is supported across more lending markets, trading venues, and institutional workflows, demand to mint cirBTC could increase alongside demand for its use as collateral.
Circle’s cirBTC page currently shows a total supply of more than 4,300 cirBTC, although this figure can change continuously.
DABB could become a channel for bringing additional BTC into the cirBTC ecosystem, but real usage data will need to be monitored before concluding that the product will generate significant adoption.
Impact on USDC
USDC is the borrowed asset in the current workflow.
If institutions use BTC collateral to access dollar liquidity, demand to borrow USDC in supported lending markets could increase.
Strategically, this creates another use case for USDC beyond payments and trading.
USDC becomes credit liquidity backed by Bitcoin collateral.
However, the impact on circulating supply or DeFi borrowing volume will still depend on the scale of DABB adoption.
Impact on Arc
DABB also provides a concrete use case for Arc shortly after the blockchain entered mainnet.
Arc was built by Circle for financial markets, stablecoin settlement, and agentic economic activity, with USDC playing a central role in the infrastructure.
cirBTC combined with Morpho lending creates a relatively clear credit market on the network: BTC-backed collateral can be used to borrow USDC.
If institutions choose Arc instead of Ethereum for DABB, it could contribute to lending activity, USDC usage, and transaction volume on the network.
However, Ethereum still has advantages in liquidity and the operating history of DeFi lending markets.
Circle acknowledges this distinction when describing Ethereum as having deeper and more established onchain lending markets.
Impact on Institutional Crypto Lending
Circle is not the only company seeking to turn crypto assets into collateral for institutional credit.
BitGo has announced plans to expand institutional customer access to DeFi vaults and lending infrastructure, with Morpho among the expected partners.
Other custody and Bitcoin infrastructure companies are also developing similar models, reflecting a broader trend: crypto custody is increasingly becoming connected with onchain credit.
This could change the role of custodians.
Instead of assets simply remaining idle in storage, institutions increasingly want to maintain custody standards while also being able to use those assets for collateral, borrowing, and liquidity management.
Risks Remain Significant
Circle providing a convenient interface does not eliminate the risks associated with DeFi lending.
Circle warns that collateral positions may be liquidated if collateral prices decline, interest rates increase, or the health factor crosses limits established by the protocol. Liquidation can occur automatically and may not necessarily come with advance notice.
In addition to BTC price volatility, users also face:
Smart contract risk.
Oracle risk.
Liquidity risk.
Interest rate fluctuations.
Protocol governance risk.
Wrapped asset and issuer risk.
Blockchain or validator failure.
Liquidation risk.
Circle also explicitly states that it does not guarantee the performance, solvency, security, or interest rates of the DeFi protocols accessed through the product.
This is especially important because the DABB experience may appear to be a unified product within Circle Mint, while the actual risk exposure is distributed across multiple infrastructure layers.
What Happens Next?
The first development to monitor is the Aave integration.
Morpho is currently the first supported protocol, but Circle has confirmed that Aave is planned as a future addition. Adding another lending protocol could provide more market choice, liquidity, and competition in borrowing rates.
The second factor is cirBTC adoption.
Metrics worth monitoring include cirBTC supply, the amount of cirBTC used as collateral, USDC borrowing volume, and the distribution of activity between Arc and Ethereum.
The third factor is expansion to additional blockchains.
Circle says cirBTC has been designed with a multichain strategy and that DABB may also be expanded to additional networks in the future. However, there is currently no specific timeline for the next blockchains.
Finally, the market will need to determine whether DABB actually attracts institutional treasury activity or simply becomes another interface for existing DeFi activity.
The difference will depend on how much new BTC enters onchain credit markets, rather than simply how many protocols are integrated.
FAQ
Does Circle Directly Lend USDC to Customers?
No. Circle provides Digital Asset-Backed Borrowing as a frontend, Smart Wallet, and set of tools connecting Circle Mint with third-party DeFi lending protocols. Actual lending and borrowing take place through the smart contracts of protocols such as Morpho.
How Can Customers Borrow USDC Against Bitcoin Through Circle?
Eligible Circle Mint customers can deposit BTC, mint cirBTC, and transfer cirBTC into a Smart Wallet they control. The cirBTC is then used as collateral on a supported lending market, and the borrowed USDC is automatically transferred back to the customer’s Circle Mint balance.
What Is cirBTC?
cirBTC is a wrapped Bitcoin issued by Circle for smart-contract networks. Each cirBTC is designed to be backed 1:1 by native BTC, with reserves verifiable onchain. cirBTC is currently available on Arc and Ethereum.
What Role Does Morpho Play in Circle’s Service?
Morpho is the first third-party lending protocol approved by Circle for Digital Asset-Backed Borrowing. Morpho provides the lending infrastructure where cirBTC can be used as collateral to borrow USDC.
Does Circle Support Aave for Bitcoin-Backed Loans?
Not at the current launch stage. Circle says Aave is among the protocols expected to be supported as the product continues to develop.
What Are the Main Risks of Borrowing USDC Against cirBTC?
Key risks include liquidation if the price of BTC falls or loan conditions change, smart contract exploits, oracle failures, liquidity risk, and borrowing rate fluctuations. Circle does not control the lending parameters of third-party protocols and does not guarantee loans against these risks.
Disclaimer: The information provided here is for informational purposes only and should not be considered financial, investment, legal, or professional advice. Always conduct your own research, consider your financial situation, and, if necessary, consult with a licensed professional before making any decisions.
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The articles shared on this page are sourced from public platforms and are provided for reference only. They do not represent the position or views of MEXC. All rights belong to Nguyen Rin Hoang. If you believe any content infringes upon the rights of a third party, please contact service@support.mexc.com for prompt removal. MEXC does not guarantee the accuracy, completeness, or timeliness of any content and is not responsible for any actions taken based on the information provided. The content does not constitute financial, legal, or other professional advice, nor should it be interpreted as a recommendation or endorsement by MEXC. For expert insights and in-depth analysis, visit MEXC Learn.
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