On September 6th,Circle announced on the X platform that its cross-chain transfer protocol CCTP had been launched on the Optimism mainnet. CCTP can now transfer USDC through 12 paths between 4 networks, including Ethereum, Avalanche, Arbitrum, and Optimism networks. In addition, Circle plans to introduce its cross-chain transfer protocol CCTP to the Base network.

It is reported that CCTP is an unlicensed on-chain tool launched by Circle, which can facilitate the transfer of USDC between different chains. Circle does not require liquidity on the target chain, but instead destroys USDC on the source chain and mints native USDC on the target chain, allowing USDC to flow locally across chains.