Arc is an EVM-compatible Layer 1 built for stablecoin finance (chain ID 5042). Gas is paid in USDC. 1inch supports Arc across the 1inch dApp, 1inch Wallet, Classic Swap, 1inch Fusion, 1inch Fusion+, Limit Orders, 1inch Aqua and all 1inch APIs.
How to use 1inch on Arc
1. Add Arc to your wallet
Most EVM wallets can add Arc automatically when you select it in the 1inch dApp. To add it manually, use:
Network name: Arc
Chain ID: 5042
Currency symbol: USDC
RPC URL: https://rpc.mainnet.arc.io
Block explorer: https://explorer.arc.io
2. Keep USDC for gas
Arc uses USDC as its native gas asset. There is no separate volatile token required for transaction fees.
Keep a small amount of USDC available for Classic Swap, token approvals and transfers. 1inch Fusion and 1inch Fusion+ do not charge you a separate gas fee for the swap.
Arc represents USDC in two ways. Native USDC uses 18-decimal EVM units for gas and native transfers. Its built-in ERC-20 interface at 0x3600000000000000000000000000000000000000 uses six decimals. Both refer to the same USDC balance.
3. Open 1inch and select Arc
Open https://1inch.com/swap/.
Open the network selector and choose Arc.
Connect your wallet and review the Terms of Service.
Select the tokens and amount you want to swap.
For example, you can select USDC and EURC. Available tokens and liquidity can change, so review the quote and price impact before confirming.
4. Swap across networks
Use 1inch Fusion+ to swap supported assets from another network to Arc without manually using a bridge. Select Arc as the destination network, choose the token and review the destination amount before signing.
Availability
1inch products are available to users in the USA, Europe, Asia and most other regions, except those subject to sanctions or where access is otherwise restricted. Certain products, features or assets may not be available in all jurisdictions, including some US states.