When you take an EVM action (mint, deploy, buy), trustor calls wallet_switchEthereumChain to put you on Base mainnet (chainId 8453).
If your wallet doesn't have Base added, it will be added automatically with the public RPC https://mainnet.base.org.
If the switch fails:
- Open your wallet → Networks → Add Base manually
- RPC:
https://mainnet.base.org - Chain ID:
8453 - Currency:
ETH - Explorer:
https://basescan.org