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You need a small amount of ETH on Base to pay for gas, plus whatever assets your app uses (USDC is the most common). How you fund depends on where your assets are.

Mainnet

  • From a Coinbase account — withdraw ETH or USDC and select Base as the network. Often the fastest path, no bridge required.
  • From another chain — see Bridge to Base for routes from Ethereum, Solana, and Bitcoin.

Testnet (Base Sepolia)

  • Get free test ETH and USDC from the Base faucets.
  • Test USDC is also available from the Circle faucet — select Base Sepolia.

Next steps

Make a transaction

Send your first transaction on Base.

Facilitate payments

Accept USDC from your users.