Eligible Circle Mint establishments can now deposit Bitcoin, flip it into wrapped cirBTC collateral, and borrow USDC by means of a Morpho lending market in a single coordinated workflow.
Circle made the service reside on Arc and Ethereum on Sept. 21, decreasing the variety of techniques a treasury workforce should navigate to boost greenback liquidity with out promoting its Bitcoin.
The service stays restricted to eligible establishments, excludes New York purchasers, and is topic to jurisdiction and eligibility. Circle Mint is the account interface, cirBTC is Circle’s tokenized declare backed by native Bitcoin, and Morpho provides the third-party lending market.
Below Circle’s Digital Asset-Backed Borrowing service, clients deposit native BTC, mint cirBTC, and provide the token as collateral by means of a customer-controlled pockets. Borrowed USDC then settles into the shopper’s Circle Mint steadiness.
Circle coordinates the expertise, however the chosen market determines borrowing prices, collateral limits, liquidation thresholds, accessible liquidity, and availability. Morpho’s documentation describes every market as its personal mixture of mortgage asset, collateral, oracle, interest-rate mannequin, and liquidation loan-to-value restrict.
For a treasury workforce, the streamlined interface doesn’t take away the necessity to monitor collateral values, utilization, and borrowing prices. A place can develop into liquidatable though the underlying Bitcoin was by no means offered, as a result of cirBTC sits within the lending market.
A Sept. 21 snapshot of the Arc marketplace for USDC loans towards cirBTC displayed an 86% liquidation loan-to-value restrict. It confirmed $14.13 million borrowed, $162.85 million in accessible liquidity, a $176.99 million market dimension and seven.98% utilization. At the very least one borrow appeared within the exercise log that day.
These figures present the Arc market was working, however they’re a point-in-time snapshot and don’t apply to Ethereum.
Circle’s reserve dashboard reported 948.75081803 cirBTC excellent towards 951.25857454 BTC in reserves as of Sept. 20. About 397 cirBTC was on Arc, and about 552 was on Ethereum.
Arc, Circle’s layer-1 community, can also be run by a permissioned validator set, one other distinction for establishments selecting among the many supported networks.
The launch shortens the trail from held Bitcoin to USDC, however it doesn’t flip variable DeFi credit score into a set Circle mortgage. Whether or not the service drives lasting cirBTC demand will rely on continued borrowing exercise and market phrases after the launch-day snapshot.

