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CCTP V2 is available on the following blockchains, where USDC is natively issued, providing Standard Transfer, Fast Transfer, and Hooks functionalities.
| Mainnet | Testnet |
|---|---|
| Arbitrum | Arbitrum Sepolia |
| Avalanche | Avalanche Fuji |
| Base | Base Sepolia |
| BNB Smart Chain (USYC only) | BNB Smart Chain Testnet (USYC only) |
| Codex | Codex Testnet |
| Ethereum | Ethereum Sepolia |
| Linea | Linea Sepolia |
| OP Mainnet | OP Sepolia |
| Polygon PoS | Polygon PoS Amoy |
| Sei | Sei Testnet |
| Solana | Solana Devnet |
| Sonic | Sonic Testnet |
| Unichain | Unichain Sepolia |
| World Chain | World Chain Sepolia |
A domain is a Circle-issued identifier for a blockchain where CCTP contracts are deployed. Domains don't map to any existing public chain ID.
| Domain | Name |
|---|---|
| 0 | Ethereum |
| 1 | Avalanche |
| 2 | OP |
| 3 | Arbitrum |
| 5 | Solana |
| 6 | Base |
| 7 | Polygon PoS |
| 10 | Unichain |
| 11 | Linea |
| 12 | Codex |
| 13 | Sonic |
| 14 | World Chain |
| 16 | Sei |
| 17 | BNB Smart Chain |
WHAT'S NEXT
