Circle designed its Cross-Chain Transfer Protocol (CCTP) around a single purpose: shuttling USDC between blockchains. That remit has since widened. The protocol has now handled more than $100 million in cross-chain volume for assets other than USDC, spanning cirBTC, EURC and WETH.

The timing is notable. Circle only switched on multi-asset support in September 2026, meaning the threshold was crossed within weeks rather than over a gradual, multi-year climb.

How burn-and-mint transfers work

Rather than locking tokens on one chain and issuing copies on another, CCTP destroys them at the origin and mints an equal amount at the destination. Holders therefore receive the genuine asset instead of a proxy, and there is no wrapped equivalent to monitor or liquidity pool to fund before a transfer can complete.

A three-stage September expansion

The rollout started on September 2, 2026, with native transfers of EURC, Circle's euro-denominated stablecoin. Early routes connected Ethereum and Base, and coverage later reached Arc, a network built with institutional users in mind.

cirBTC came next. Backed 1:1 by Bitcoin, the token debuted on Arc on September 21, 2026, and native CCTP transfers went live a few days afterward, on September 23-24, 2026.

WETH completes the picture. The wrapped form of Ether serves as a core building block across DeFi and now stands as the flagship example of CCTP's support for select third-party assets. Its presence carries the most weight in Arc's lending applications, including Aave V4.

With the additions, the supported roster stands at USDC, EURC, cirBTC and WETH, alongside any further third-party tokens Circle elects to admit.

$100 million against $110 billion

The new figure needs context. Across all supported assets over its entire operating history, CCTP has processed more than $110 billion in cumulative volume, so non-USDC activity still represents a modest share.

The surrounding tooling has grown as well. CCTP V2 introduced Fast Transfers to speed up settlement, along with Hooks, which let developers trigger actions automatically once funds land on the destination chain. Chain coverage is widening too, with Sui slated to join in October 2026.

From USDC plumbing to multi-asset rails

CCTP originated as a fix for a narrow problem. USDC circulated on many chains, yet moving it between them typically meant depending on third-party bridges and their wrapped versions of the token. By performing the burn and the mint itself, Circle kept USDC native on every chain it touched. The September extension applies that same approach to a growing set of Circle-issued tokens plus a small selection of outside assets.

Developers gain as well: a single CCTP integration can now handle multiple assets, removing the need to wire up a separate bridge for each token.

What to watch for Circle, developers and DeFi

Arc forms the second storyline. Both EURC and cirBTC were routed to the institution-oriented network early in the expansion, and WETH's position in Arc lending venues such as Aave V4 points to where Circle expects usage to gather.

Genuine tradeoffs remain. Burn-and-mint design concentrates trust in the issuer and in the protocol running the attestations, and the menu of third-party assets is curated by Circle rather than open to everyone.

The markers for the coming months are clear: whether non-USDC volume keeps compounding once launch excitement fades, whether additional third-party tokens gain approval, and whether the Sui integration arrives on its October 2026 timelinen
Source: CryptoBriefing