OKX has launched xBTC, a new wrapped version of Bitcoin that can now be used across three major blockchains—Solana, Sui, and Aptos. Each xBTC token is backed 1:1 by real Bitcoin held in custody by OKX, giving BTC holders a way to use their assets in DeFi without giving up ownership.
For years, Bitcoin has been known as a solid store of value, but it hasn’t been easy to use in smart contract ecosystems. No native support for DeFi, no access to yield opportunities. That’s where xBTC steps in.
Here’s how it works: users deposit BTC, and OKX mints an equivalent amount of xBTC on supported chains. When you wrap your BTC into xBTC, your actual Bitcoin stays safe with OKX. In return, you get xBTC on-chain, which you can use across DeFi—whether that’s lending it out, swapping on DEXs, or just putting it to work wherever wrapped tokens are accepted.
And the best part? There are no extra fees for minting or burning xBTC. You just pay the usual gas on the chain you’re using. That means moving your Bitcoin into DeFi is way smoother—no hidden costs, no extra friction.
To keep things transparent, OKX shows exactly how much BTC is backing xBTC. They’ve got a live proof-of-reserves system, so you can always verify that your xBTC is backed 1:1 with real Bitcoin sitting in cold storage. It’s their way of making sure users don’t have to worry about trust issues or the kind of wrapped token disasters we’ve seen before.
At launch, xBTC is available on Solana, Sui, and Aptos—three high-speed chains known for low fees and growing DeFi ecosystems. OKX says it plans to expand to more networks over time.
In short, xBTC is designed for Bitcoin holders who want more than just to hold. With xBTC, they can earn yield, post collateral, and interact with DeFi apps—without selling their BTC.
This move could help bring more Bitcoin liquidity into the onchain economy—something that’s been missing for a while.
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