What is Chain-key USDT (CKUSDT)?
ckUSDT is a digital twin of USDT on the Internet Computer Protocol network. Fully backed 1:1 by USDT, ckUSDT is powered by Chain-key technology which allows for cross chain interoperability without centralized intermediaries or bridges. Canister smart contracts on ICP can integrate with the Ethereum network using a combination of replicated HTTPS outcalls to a known set of public Ethereum nodes to read state and submit transactions, and chain-key ECDSA (ckECDSA) signatures, an enhanced version of threshold ECDSA, to sign those submitted transactions.
How does Chain-key USDT work?
Building upon this integration framework, ckUSDT is a pair of canister smart contracts that utilize HTTPS outcalls and ckECDSA services. The ckETH minter and ckUSDT ledger contracts work together to enable users and smart contracts to send and receive USDT value within seconds with negligible transaction fees, and no gas fees, while also always allowing users and smart contracts to send and receive USDT value to and from the Ethereum network.
What is Chain-key USDT used for?
ckUSDT exposes ICRC-1 and ICRC-2 ledger interfaces (the fungible token standards of ICP), making it simple for all wallets on the Internet Computer to offer ckUSDT support.
Where can you buy Chain-key USDT?
Chain-key USDT (CKUSDT) is traded on a wide range of centralized and decentralized exchanges. The most liquid markets for CKUSDT sit on tier-1 venues - the sort of exchanges where institutional desks and professional market makers rebalance continuously - which is what keeps the spread tight and the last price tied closely to fair value.
You can open the Markets section above to see the live list of exchanges quoting CKUSDT, sorted by 24-hour volume. Each row links to the venue's trade page so you can go directly from research to execution without copying the ticker around by hand.
