Base can be added as a custom network to any EVM-compatible wallet (i.e. MetaMask).

MetaMask
To add Base as a custom network to MetaMask:

Open the MetaMask browser extension.

Open the network selection dropdown menu by clicking the dropdown button at the top of the extension.

Click the Add network button.

Click Add a network manually.

In the Add a network manually dialog that appears, enter the following information for Base mainnet:

Base can be added as a custom network to any EVM-compatible wallet (i.e. MetaMask).

MetaMask
To add Base as a custom network to MetaMask:

Open the MetaMask browser extension.

Open the network selection dropdown menu by clicking the dropdown button at the top of the extension.

Click the Add network button.

Click Add a network manually.

In the Add a network manually dialog that appears, enter the following information for Base mainnet:
https://docs.base.org/docs/using-base/

Needs to be added automatically. Coming soon.