# USDCx

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Developer support for integrating USDCx bridging into applications will be available via Circle’s Bridge Kit SDK in Q1 2026.
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Stacks now has a fully USDC-backed stablecoin that plugs directly into Circle’s multichain ecosystem and brings stable, interoperable dollar liquidity to Bitcoin’s leading Layer 2.

### What is USDCx?

USDCx is a 1:1 USDC-backed stablecoin issued through Circle xReserve and native to Stacks. It will exist as a SIP-010 token on Stacks.

Circle's xReserve provides cryptographic attestations for deposits and minting, while Circle Gateway and CCTP handle cross-chain movement. The result is USDC on Stacks without third-party bridges, wrapped assets, or fragmented liquidity.

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For more info on xReserve, check out the dedicated Circle docs [here](https://developers.circle.com/xreserve).
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### Discover more of USDCx

<table data-view="cards"><thead><tr><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><strong>Operations</strong></td><td><a href="usdcx/operations">operations</a></td></tr><tr><td><strong>Contracts</strong></td><td><a href="usdcx/contracts">contracts</a></td></tr><tr><td><strong>Bridge App</strong></td><td><a href="usdcx/bridge-app">bridge-app</a></td></tr><tr><td><strong>FAQ</strong></td><td><a href="usdcx/faq">faq</a></td></tr></tbody></table>

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### Security Audits

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### Additional Resources

* \[[Stacks Blog](https://www.stacks.co/blog/usdcx-launch-stacks-bitcoin-defi)] USDCx Launches on Stacks: Bitcoin Gets Its Top Tier Stablecoin
* \[[Circle Blog](https://www.circle.com/blog/usdcx-on-stacks-now-available-via-circle-xreserve)] USDCx on Stacks now available via Circle xReserve