Stablecoins
Stablecoins are the foundation of the Arc ecosystem, providing price-stable digital money for payments, FX, and onchain financial applications. The ERC-20 functions will affect native balance movements.USDC
USDC is the native EVM asset on Arc and is used for gas fees. The native balance, consistent with most EVM implementations, expresses the balance up to 18 decimals of precision. An optional USDC ERC-20 interface is also available for developers who need ERC-20 features such astransferFrom, approve, and allowance management. The
ERC-20 function call directly affects native USDC balance movements.
- Contract address:
0x3600000000000000000000000000000000000000 - Decimals: 6
- Behavior: Your native USDC balance and the ERC-20 interface balance are equivalent. It is not a wrapped token like WETH.
Note: As with any ERC-20 token, always use the
decimals() function to
interpret balances and transfer amounts accurately. On Arc, the native USDC
gas token uses 18 decimals of precision, while the USDC ERC-20 interface
uses 6 decimals. Avoid mixing these values directly, as doing so may result in
incorrect balance handling. For applications integrating USDC, it’s
recommended to rely solely on the standard ERC-20 interface for reading
balances and sending transfers.EURC
EURC is the euro-denominated stablecoin issued by Circle and supported natively on Arc for use in payments, FX, and other financial applications.- Contract address:
0x89B50855Aa3bE2F677cD6303Cec089B5F319D72a - Decimals: 6
Crosschain
The contracts below enable crosschain interoperability between Arc and other blockchains through Circle’s Cross-Chain Transfer Protocol (CCTP) and Gateway. CCTP handles crosschain message passing and stablecoin transfers, while Gateway provides chain-abstracted USDC balances for seamless liquidity movement.CCTP
| Contract | Domain | Address |
|---|---|---|
| TokenMessengerV2 | 26 | 0x8FE6B999Dc680CcFDD5Bf7EB0974218be2542DAA |
| MessageTransmitterV2 | 26 | 0xE737e5cEBEEBa77EFE34D4aa090756590b1CE275 |
| TokenMinterV2 | 26 | 0xb43db544E2c27092c107639Ad201b3dEfAbcF192 |
| MessageV2 | 26 | 0xbaC0179bB358A8936169a63408C8481D582390C4 |
Gateway
| Contract | Domain | Address |
|---|---|---|
| GatewayWallet | 26 | 0x0077777d7EBA4688BDeF3E311b846F25870A19B9 |
| GatewayMinter | 26 | 0x0022222ABE238Cc2C7Bb1f21003F0a260052475B |
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