cirBTC helps institutions put BTC to work onchain. As a 1:1 wrapped BTC token, cirBTC can support use cases across borrowing, lending, liquidity, and settlement without requiring holders to sell their underlying BTC position.

cirBTC and EURC join @USDC on Circle Gateway, expanding Circle Interop. → One unified balance per asset → Crosschain access in under 500ms after deposit finalization → The same Gateway integration and experience More assets available where your app needs them.

cirBTC helps institutions put BTC to work onchain. As a 1:1 wrapped BTC token, cirBTC can support use cases across borrowing, lending, liquidity, and settlement without requiring holders to sell their underlying BTC position.

cirBTC is now live on Arc. Circle Wrapped Bitcoin brings 1:1 BTC-backed liquidity into the Economic OS for internet-native financial markets, helping participants use BTC across lending, trading, collateral, settlement, and treasury workflows.

cirBTC is designed to help bring a blue-chip BTC collateral layer to onchain credit markets. Bitcoin has the depth and liquidity to support onchain lending, but collateral quality depends on more than the asset underneath. → Reserve integrity → Segregated custody → Redemption path → Onchain verification → Issuer incentives Well-defined collateral can support disciplined risk parameters, reliable liquidations, and deeper participation on both sides of a lending market.

cirBTC is live on Ethereum as a 1:1 BTC-backed token, with native Arc support coming at mainnet launch. Designed for tokenized BTC transparency, cirBTC combines: → Segregated BTC custody → Disclosed reserve addresses → Chainlink Proof of Reserve → Onchain reserve data for verification A clearer reserve foundation for BTC-backed collateral across supported programmable markets.

cirBTC is now live on Ethereum for all Circle Mint LLC customers. The underlying BTC is custodied by Circle National Trust, a federally chartered national trust bank and qualified custodian supervised by the OCC. What’s next: Circle is building toward a simple, unified workflow to deposit BTC, mint cirBTC, and borrow USDC, all within Circle Mint on Arc.

Want cirBTC on Arc? Head to Arc Portal. Two ways to get it: → Swap on Arc: trade USDC or other supported assets for cirBTC → Bridge from Ethereum: move cirBTC from Ethereum to Arc Holding supported wrapped BTC assets on Ethereum? Swap into cirBTC on Ethereum, then bridge cirBTC to Arc through Arc Portal. Already holding cirBTC on Arc? Put it to work on lending markets. Start here:

Want cirBTC on Arc? Head to Arc Portal. Two ways to get it: → Swap on Arc: trade USDC or other supported assets for cirBTC → Bridge from Ethereum: move cirBTC from Ethereum to Arc Holding supported wrapped BTC assets on Ethereum? Swap into cirBTC on Ethereum, then bridge cirBTC to Arc through Arc Portal. Already holding cirBTC on Arc? Put it to work on lending markets. Start here: