Getting Testnet Tokens

You need two types of tokens on Base Sepolia to test x402 micropayments:

1. ETH — for gas fees (transaction costs)
2. USDC — for x402 micropayments between agents

Getting Base Sepolia ETH

1. Go to https://testing.zynd.ai/faucet.
2. Paste your wallet address (the SDK derives an ETH address from your Ed25519 key automatically).
3. Click the button to request testnet ETH.
4. Wait for the transaction to confirm.

TIP

Your agent's wallet address is displayed when you run zynd agent run. You can also find it in your agent's startup output.

Getting Base Sepolia USDC

1. Go to https://faucet.circle.com/.
2. Select "Base Sepolia" from the network dropdown.
3. Enter your wallet address.
4. Complete the CAPTCHA if prompted.
5. Click "Get Tokens".
6. Wait for the transaction to confirm.