Payments infrastructure provider and USDC stablecoin issuer Circle announced the launch of Cross-Chain Transfer Protocol Version 2 (CCTP V2) on the Solana blockchain, extending its stablecoin infrastructure across additional networks.
This integration enables fast cross-chain USDC transfers, with settlement occurring within seconds. It also introduces support for smart contract hooks that allow for customizable post-transfer actions, while maintaining capital efficiency through a native burn-and-mint mechanism that eliminates the need for liquidity pools or intermediary assets. Security is upheld through Circle’s infrastructure, without introducing new trust assumptions.
Current adopters of the integration include applications and platforms such as 1 Click USDC, Interprofit Finance, and Router Protocol, with broader ecosystem participation expected to follow.
With this update, Solana joins a broader network of CCTP V2-enabled chains, including Arbitrum, Avalanche, Base, Ethereum, Linda, Optimism mainnet, Sonic, and World.
What Is CCTP V2?
CCTP is a permissionless onchain mechanism designed to facilitate secure USDC transfers across different blockchain networks through a native burn-and-mint process. Developed by Circle, the protocol enhances capital efficiency while reducing the need for intermediary trust when moving USDC between chains. CCTP supports the creation of multichain applications that allow users to conduct one-to-one USDC transfers between networks in a secure manner.
The protocol is available in two iterations: CCTP V1 and CCTP V2. While both versions enable cross-chain USDC transfers, they differ in capabilities. CCTP V2 introduces additional features such as Fast Transfer, which reduces transaction time by allowing transfers to occur at speeds faster than typical network finality, and Hooks, which provide developers with the ability to automate actions following a cross-chain transfer. These enhancements build on the standard transfer functionality already offered in CCTP V1.
CCTP V2 is built on a separate infrastructure with its own smart contracts and application programming interfaces (APIs), forming a distinct network that is not backward compatible with the V1 version. Nonetheless, developers can integrate both versions in a way that maintains a cohesive user experience and broadens access across supported ecosystems.
CCTP V2 is now available on @solana!
Key benefits for developers and users:
Fast Transfer: crosschain @USDC settlement in seconds
Hooks: smart contract integrations for post-transfer actions
Capital Efficient: 1:1 burn-and-mint, no liquidity pools or fillers
Secured by… pic.twitter.com/atpeYalGAj
— Circle (@circle) June 20, 2025
Before the official rollout, Circle introduced a new pre-mint address to support the programmatic minting of USDC on Solana through the CCTP. This infrastructure enables the protocol to efficiently initiate USDC issuance within the Solana network. For exchanges and platforms that monitor Solana’s USDC circulation, existing public APIs provided by Circle remain functional, and no modifications are necessary.
On certain non-EVM chains like Solana, Circle utilizes a pre-minting approach, where a designated address holds USDC that has been generated but is not yet classified as part of the active circulating supply. This reserve remains inactive until Circle formally authorizes the minting, at which point it becomes part of the total supply in circulation.
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