Base Sepolia lets you exercise Coinvay checkout with test ETH or test USDC rather than live assets. Use chain ID 84532, fund the sending wallet with test ETH for gas and approve the transaction yourself.
Prepare both sides of the transfer
In the merchant Sandbox, save the address that should receive the test tokens. The sending wallet can be a separate test wallet you control. Use the Base documentation’s faucet links for test ETH and Circle’s faucet for test USDC, selecting Base Sepolia explicitly. Test USDC is a token, so the sender still needs test ETH to pay network gas. Do not buy or bridge real funds merely to exercise the sandbox.
Create and pay the exact request
Choose Testnet payments, enter an amount such as 0.01 test USDC and create the checkout. The final displayed quantity includes a small precision adjustment, so send that exact amount rather than the round value entered in the form. Coinvay’s wallet-assisted route switches to Base Sepolia before requesting payment approval. The manual route displays the address, amount and QR instructions. Review the recipient and network in the wallet before approving any transfer.
Verify what actually happened
The checkout waits for three canonical confirmations. If automatic detection has not found the transfer, paste its transaction hash for verification. A failed transaction, wrong token contract, incorrect amount or payment to another address cannot complete the test invoice. Requests expire after thirty minutes; a transfer mined within the allowed window can still be checked by hash afterwards. For example, keep a test order reference in the sandbox history and compare its receipt to the explorer, rather than recording a preview screenshot as proof of settlement.
Practical checklist
- Use Base Sepolia on both the faucet and wallet; check chain ID 84532.
- Fund the sender with test ETH for gas and the chosen test payment asset.
- Send the exact adjusted quantity and inspect the verified test receipt.
Common questions
Does test USDC have the same contract as live Base USDC?+
No. Network and contract identity are part of verification. Never reuse a live token address or assume matching symbols identify the same asset.
Can Coinvay sign the transfer for me?+
No. The wallet holder reviews and approves the test transaction. The gateway does not need the wallet seed phrase or private key.
Sources and further reading
Primary references and Coinvay product documentation. Check the linked pages for current details.
AI-assisted drafting, published by Coinvay. Examples are illustrative. Read our editorial approach.