Chainlink’s Cross-Chain Interoperability Protocol (CCIP) is the industry standard for digital asset and data transfer used by leading blockchains, layer-2s, DeFi protocols, and traditional financial institutions to unlock new use cases and markets for crypto, stablecoins, and tokenized assets. CCIP’s Cross-Chain Token (CCT) standard allows developers on supported blockchains to turn any ERC-20-compatible token into a CCT with additional security and reliability benefits including configurable rate limits, self-serve deployments, and zero-slippage transfers.
This week, Chainlink, Astar Network, and Optimism announced that CCIP is powering the first live deployment of a SuperchainERC20-compatible CCT on Soneium Mainnet via the CCT standard. Astar Network’s native utility, governance, and staking token, ASTR, is now a CCT connecting Astar Network to Soneium, an Ethereum layer-2 designed to unlock web3’s global adoption as part of the Optimism Superchain.
“By adopting the CCT standard and integrating with Chainlink CCIP, we’ve taken a critical step toward making the Astar Network a core part of the Superchain and broader multi-chain ecosystem—empowering developers and users with expanded cross-chain capabilities,” said Sota Watanabe, CEO of Startale Group, the Singapore-based web3 company developing Astar Network and Soneium through a joint venture with Sony Group.
“As the first token to adopt the CCT standard on Soneium, ASTR creates the foundation for how Optimism’s SuperchainERC20 tokens can become CCT-compatible, reinforcing how Chainlink CCIP enables secure cross-chain interoperability across leading ecosystems,” said Johann Eid, Chief Business Officer at Chainlink Labs.
CCIP leverages Chainlink’s industry-leading decentralized oracle network, which has enabled over $21 trillion in transaction value across 50+ blockchain networks, to achieve the highest level of cross-chain security backed by a separate Risk Management Network. Using the CCT standard, ASTR demonstrates how SuperchainERC20-compatible tokens can flow seamlessly across the Superchain and other EVM and non-EVM chains, creating new opportunities to unify previously siloed liquidity through advanced cross-chain applications.