Documentation Index
Fetch the complete documentation index at: https://circle-devdocs-test-ai-codegen-component.mintlify.app/llms.txt
Use this file to discover all available pages before exploring further.
CCTP V2 Supported Blockchains
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 |
| HyperEVM | HyperEVM Testnet |
| Ink | Ink Testnet |
| Linea | Linea Sepolia |
| OP Mainnet | OP Sepolia |
| Plume | Plume Testnet |
| Polygon PoS | Polygon PoS Amoy |
| Sei | Sei Testnet |
| Solana | Solana Devnet |
| Sonic | Sonic Testnet |
| Unichain | Unichain Sepolia |
| World Chain | World Chain Sepolia |
| XDC | XDC Apothem |
CCTP V2 Supported Domains
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 |
| 18 | XDC |
| 19 | HyperEVM |
| 21 | Ink |
| 22 | Plume |
WHAT’S NEXT